DOCSLIB.ORG

Tools for the Formation of Optimised X-80 Steel Blast Tolerant Transverse Bulkheads

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Tools for the Formation of Optimised X-80 Steel Blast Tolerant Transverse Bulkheads Tools for the formation of optimised X-80 steel blast tolerant transverse bulkheads by Ian K. Raymond Masters of Engineering (Research) 2001 The University of New South Wales Abstract Surname: Raymond First name: Ian Other name: Kenneth Abbreviation for degree as given in the University calendar: ME School: Mechanical and Manufacturing Engineering Faculty: Engineering Title: Tools for the formation of optimised X-80 steel blast tolerant transverse bulkheads The Australian Maritime Engineering Cooperative Research Centre, and its partner organisation initiated this research effort. In particular, BHP and the Defence Science and Technology Organisation held the principal interest, as this research effort was a part of the investigation into the utilisation of X-80 steel in naval platforms. After some initial considerations, this research effort focussed on the development of X-80 steel blast tolerant transverse bulkheads. Unfortunately, due to the Australian Maritime Engineering Cooperative Research Centre not being re-funded after June 2000 and other project factors, the planned blast tests were not conducted, hence this research effort focussed on the tools needed for the formation of optimised blast tolerant transverse bulkheads rather than on the development of a single structural arrangement. Design criteria were formed from the worst case operational requirements for a transverse bulkhead, which would experience a 150 kg equivalent blast load at 8 m from the source. Since the development of any optimised blast tolerant structure had to be carried out using finite element analysis, material constants for X-80 steel under high strain rates were obtained. These material constants were implemented in the finite element analysis and the appropriate solid element size was evolved. The behaviour and effects of stress waves and high strain rates were considered and the literature reviewed, in particular consideration was given to joint structures and weld areas effects on the entire structural response to a blast load. Furthermore, to support the design criteria, rupture prediction and determination methodologies have been investigated and recommendations developed about their relevance. Since the response of transverse bulkheads is significantly affected by their joint and stiffener arrangements, separate investigations of these structures were undertaken. The outcomes of these investigations led to improvements in the blast tolerance behaviour of joints and stiffeners, which also improved the overall response of the transverse bulkhead to air blast loads. Finally, an optimisation procedure was developed that met all the design criteria and its relevant requirements. This optimisation procedure was implemented with the available data, to show the potential to develop optimised X-80 steel blast tolerant transverse bulkheads. Due to the constraints mentioned above the optimisation procedure was restricted, but did show progression towards more effective blast tolerant transverse bulkhead designs. Factors, such as double skin bulkheads, maximising plate separation, and the use of higher yield steel all showed to be beneficial in the development of optimal X-80 steel blast tolerant transverse bulkheads, when compared to the ANZAC- class D-36 steel transverse bulkheads. 1 Dedication This thesis is dedication to my parents, brother, and my fiancée. ii Declaration iii Table of contents Tools for the formation of optimised X-80 steel blast tolerant transverse bulkheads i Dedication ii Declaration iii Table of contents iv Chapter 1: Introduction 1 1.1. Introduction 2 1.2. Warship survivability 2 1.3. Explosives and their blast loads 15 1.4. Structural response to blast loads 27 · Material elasticity 50 · Influence of finite displacement 50 · Material strain rate sensitivity 50 · Combined influence of finite displacement and strain rate sensitivity 51 · Transverse shear and rotatory inertia 51 · Material strain hardening 52 · Bound method 52 · Mode approximation methods 53 · Dynamic plastic buckling 53 iv · Dynamic progressive buckling 54 · Scaling 55 · Ductile-brittle fracture transition related to size 58 1.5. Stress waves and strain rate 61 1.6. The J-integral and material failure 62 1.7. What is X-80 steel 64 1.8. What is being attempted in this research 67 1.9. Conclusion 68 Chapter 2: Design criteria for X-80 steel blast tolerant transverse bulkheads 70 2.1. Introduction 71 2.1.1. Transverse bulkhead attributes to naval platform survivability 71 2.1.2. Current transverse bulkhead formation 72 2.2. Operational requirements 73 2.2.1. Pre air blast loads 75 2.2.2. Air blast load 75 2.2.3. Post air blast load 76 2.3. Design criteria 76 2.3.1. Pre air blast loads 76 2.3.2. Air blast load 78 2.3.3. Post air blast load 80 2.3.4. Other relevant factors 81 2.4. Conclusion 82 Chapter 3: High strain rate data and analysis 84 3.1. Introduction 85 3.2. Experimental set-up 85 3.3. Constitutive Models 86 3.3.1. Cowper-Symonds model 86 3.3.2. Johnson-Cook model 87 3.4. Results from the compression Hopkinson bar tests 88 3.5. Results from the microscope investigation 94 3.6. Conclusion 98 v Chapter 4: Development and evaluation of a finite element modelling technique 99 4.1. Introduction 100 4.2. Modelling parameters 100 4.3. Initial finite element models 101 4.3.1. MSC/NASTRAN models 101 4.3.2. Simple LS/DYNA finite element models 103 4.4. LS/DYNA modelling of the D-36 steel transverse bulkheads 109 4.4.1. Shot 1, 4, 9, and 10 initial observations 111 4.5. Comparison of the finite element data set to the photometric data set 118 4.6. Conclusion 120 Chapter 5: Factors related to the design constraints 122 5.1. Introduction 123 5.2. Stress waves and strain rate in steel due to a blast load 123 5.3. Prediction of rupture 128 · MSC/PATRAN, MSC/NASTRAN, and LS/DYNA 137 · Check_set.for 139 · Solve_num.for 139 · Nastran_position.pm 140 · Nastran_stress.pm 140 · Dyna_position.pm 140 · Dyna_stress.pm 140 · Solve_stress.for 141 · Stress_dyn.for 141 · Check_element.for 141 · Face_Numbering.for 142 · J-integral.for 142 5.4. Conclusion 144 Chapter 6: Bulkhead component investigation 145 6.1. Introduction 146 vi 6.2. Joint structures 146 6.3. Stiffener structures 164 6.4. Conclusion 201 Chapter 7: Development of an optimised X-80 steel blast tolerant transverse bulkhead 202 7.1. Introduction 203 7.2. Optimisation procedure 203 · Step 1 203 · Step 2 204 · Step 3 205 · Step 4 206 · Step 5 206 · Step 6 206 · Step 7 206 · Step 8 206 7.3. Optimisation cycles 208 · Cycle 1 209 · Cycle 2 211 · Cycle 3 213 · Cycle 4 216 7.4. Additional outcomes 219 7.5. Conclusion 222 Chapter 8: Conclusion 223 8.1. Summary 224 Acknowledgements 229 Bibliography 230 Appendix A: Sheppard Interpolation 259 A.1. Sheppard interpolation explanation 260 vii A.2. Fortran codes 261 Appendix B: Sea Australia 2000 paper 267 B.1. Raymond et al. (2000a) 268 Appendix C: Structures Under Shock and Impact paper 276 C.1. Raymond et al. (2000b) 277 Appendix D: Structural Failure and Plasticity paper 287 D.1. Raymond et al. (2000c) 288 viii Chapter 1 Introduction Abstract: In this ‘Introduction’ chapter a literature survey of the topics covered in this research project is given. Additionally, an explanation of the research project is given and its interconnection to the literature survey. 1 1.1. Introduction In this chapter a survey of literature relevant to the research task has been covered. Due to the extreme broadness of the topics covered, the literature survey is quite diverse. The diversity of the literature topics ranges from ‘Warship survivability’ to ‘What is X-80 steel’, specifically focusing on blast loads, structural responses to blast loads, stress waves, strain rate effects and the J-integral. To finalise this chapter a brief explanation of the research project is given as well as the interconnection between this project and the literature survey. 1.2. Warship survivability Survivability of warships, i.e. resilience of warships, up to and through World War 2 had continually improved. These improvements were aimed at reducing the vessels vulnerability to kinetic weapons above the waterline and explosive weapons below the waterline on the side of the vessel, as mentioned in Begg et al. (1990), “From September 1943 to October 1944 the German battleship Tirpitz sustained direct hits from 2 underwater mines and 22 aerial bombs, totalling 22 tons of explosive charge – and survived. In November 1944 she was hit by a further 6 high explosive bombs of 5 tons each before capsizing through flooding. The Tirpitz can be described as a resilient warship. This can be attributed towards her 22 watertight subdivisions and armour plating up to 12 inches thick around her sides and deck, giving a displacement of 50,000 tons.” Post World War 2 the perception was that nuclear weapons would be used frequently in any future conflict, therefore designing warships to be resilient was not considered as highly as throughout the war. Additionally, since World War 2, torpedos and mines have been designed to explode under the keel of a vessel, making it almost impossible to deal with the blast pressure wave/bubble. Hence from 1950’s to late 1980’s warships were made lighter, and had more of their displacement directed to offensive 2 capabilities. Thus there was an improvement in their attacking capabilities and also a significant increase in battle damage, as supported in Dawson and Orton (1990), 16 out of the 23 warships sent by the Royal Navy to the Falklands War were damaged. Additionally, taking into consideration the incidents that have occurred in the Persian Gulf, modern warships are now being developed with greater consideration of survivability requirements. Before discussing the factors and the undertakings to improve survivability, the following recent examples of warship battle damage are canvassed.
Load more

Recommended publications
  • FROM CRADLE to GRAVE? the Place of the Aircraft
    FROM CRADLE TO GRAVE? The Place of the Aircraft Carrier in Australia's post-war Defence Force Subthesis submitted for the degree of MASTER OF DEFENCE STUDIES at the University College The University of New South Wales Australian Defence Force Academy 1996 by ALLAN DU TOIT ACADEMY LIBRARy UNSW AT ADFA 437104 HMAS Melbourne, 1973. Trackers are parked to port and Skyhawks to starboard Declaration by Candidate I hereby declare that this submission is my own work and that, to the best of my knowledge and belief, it contains no material previously published or written by another person nor material which to a substantial extent has been accepted for the award of any other degree or diploma of a university or other institute of higher learning, except where due acknowledgment is made in the text of the thesis. Allan du Toit Canberra, October 1996 Ill Abstract This subthesis sets out to study the place of the aircraft carrier in Australia's post-war defence force. Few changes in naval warfare have been as all embracing as the role played by the aircraft carrier, which is, without doubt, the most impressive, and at the same time the most controversial, manifestation of sea power. From 1948 until 1983 the aircraft carrier formed a significant component of the Australian Defence Force and the place of an aircraft carrier in defence strategy and the force structure seemed relatively secure. Although cost, especially in comparison to, and in competition with, other major defence projects, was probably the major issue in the demise of the aircraft carrier and an organic fixed-wing naval air capability in the Australian Defence Force, cost alone can obscure the ftindamental reordering of Australia's defence posture and strategic thinking, which significantly contributed to the decision not to replace HMAS Melbourne.
    [Show full text]
  • Report of the Inquiry Into Recognition for Service in Somalia
    INQUIRY INTO RECOGNITION OF AUSTRALIAN DEFENCE FORCE SERVICE IN SOMALIA BETWEEN 1992 AND 1995 LETTER OF TRANSMISSION Inquiry into Recognition of Australian Defence Force Service in Somalia between 1992 and 1995 Senator, the Hon John Faulkner Minister for Defence Parliament House Canberra ACT 2600 Dear Senator Faulkner, I am pleased to present the report of the Defence Honours and Awards Tribunal on the Inquiry into recognition of ADF Service in Somalia between 1992 and 1995. The inquiry was conducted in accordance with the Terms of Reference. The panel of the Tribunal that conducted the inquiry arrived unanimously at the findings and recommendations set out in its report. Yours sincerely Professor Dennis Pearce AO Chair 5 July 2010 CONTENTS 2 LETTER OF TRANSMISSION.............................................................................................2 TERMS OF REFERENCE .....................................................................................................5 EXECUTIVE SUMMARY .....................................................................................................6 SUMMARY OF RECOMMENDATIONS............................................................................8 REPORT OF THE TRIBUNAL.............................................................................................9 Members of the Tribunal ................................................................................................9 Declaration of Conflict of Interest ..................................................................................9
    [Show full text]
  • The Australian Naval Architect
    THE AUSTRALIAN NAVAL ARCHITECT Volume 4 Number 3 August 2000 THE AUSTRALIAN NAVAL ARCHITECT Journal of The Royal Institution of Naval Architects (Australian Division) Volume 4 Number 3 August 2000 Cover Photo: 4 From the Division President Solar Sailor in Wollongong Harbour during her 5 Editorial delivery voyage to Sydney (Photo Solar Sailor 6 Letters to the Editor Ltd) 10 News from the Sections 15 Coming Events 17 General News The Australian Naval Architect is published four times per year. All correspondence and advertis- 30 Education News ing should be sent to: 33 From the Crow’s Nest The Editor 35 Prevention of pollution from oil tankers The Australian Naval Architect — can we improve on double hulls? — c/o RINA Robin Gehling PO Box No. 976 46 Stability Data: a Master’s View — EPPING, NSW 1710 Captain J. Lewis AUSTRALIA email: [email protected] 50 Professional Notes The deadline for the next edition of The Austral- 53 Industry News ian Naval Architect (Vol. 4 No. 4, November 54 The Internet 2000) is Friday 20 October 2000. 55 Membership Notes Opinions expressed in this journal are not nec- 56 Naval Architects on the move essarily those of the Institution. 59 Some marine casualties — Exercises in Forensic Naval Architecture (Part 6) — R. J. Herd The Australian Naval Architect ISSN 1441-0125 63 From the Archives © Royal Institution of Naval Architects 2000 Editor in Chief: John Jeremy Technical Editor: Phil Helmore RINA Australian Division on the Print Post Approved PP 606811/00009 World Wide Web Printed by B E E Printmail Telephone (02) 9437 6917 www.rina.org.uk/au August 2000 3 Paper gives defence industry in general minimal From the Division President exposure.
    [Show full text]
  • Australia's Joint Approach Past, Present and Future
    Australia’s Joint Approach Past, Present and Future Joint Studies Paper Series No. 1 Tim McKenna & Tim McKay This page is intentionally blank AUSTRALIA’S JOINT APPROACH PAST, PRESENT AND FUTURE by Tim McKenna & Tim McKay Foreword Welcome to Defence’s Joint Studies Paper Series, launched as we continue the strategic shift towards the Australian Defence Force (ADF) being a more integrated joint force. This series aims to broaden and deepen our ideas about joint and focus our vision through a single warfighting lens. The ADF’s activities have not existed this coherently in the joint context for quite some time. With the innovative ideas presented in these pages and those of future submissions, we are aiming to provoke debate on strategy-led and evidence-based ideas for the potent, agile and capable joint future force. The simple nature of ‘joint’—‘shared, held, or made by two or more together’—means it cannot occur in splendid isolation. We need to draw on experts and information sources both from within the Department of Defence and beyond; from Core Agencies, academia, industry and our allied partners. You are the experts within your domains; we respect that, and need your engagement to tell a full story. We encourage the submission of detailed research papers examining the elements of Australian Defence ‘jointness’—officially defined as ‘activities, operations and organisations in which elements of at least two Services participate’, and which is reliant upon support from the Australian Public Service, industry and other government agencies. This series expands on the success of the three Services, which have each published research papers that have enhanced ADF understanding and practice in the sea, land, air and space domains.
    [Show full text]
  • View Military Dossier
    hull 045 hull 050 military hull 060 hull 061 Think Military... Think Incat hull 045 hull 050 the history Incat craft have been utilised in a range of military During this time the vessel seized the attention of the US applications, and the commercial off the shelf technology military, enabling them to witness the potential of high is providing economic, efficient and effective commercial speed craft to perform various military roles. As a result, platforms that interest defence forces which understand the in 2001 joint forces from the US military awarded Bollinger need for new ways to achieve results. / Incat USA the charter contract of Incat 96 metre HSV X1 Joint Venture. hull 060 The Incat platform offers fast transit, fast turnaround in port, and the shallow draft and optional ramp arrangements can The success of Joint Venture led to more charter contracts. significantly increase access to austere ports. Flexibility and The 98m TSV-1X Spearhead was delivered to the US Army versatility in vehicle deck layout, plus optional helicopter in September 2002, and HSV 2 Swift to the US Navy in decks and hangars increase mission options. The wide August 2003. beam and other design aspects improve passenger comfort and crew accommodation, medical and other facilities can All three vessels have displayed their excellence in be installed for specific requirements. Minimal crewing humanitarian roles, including Swift’s major role in the numbers and reliable economic operation assist with Hurricane Katrina relief program, often responding on ongoing budget considerations. short notice to meet the needs of disaster relief efforts. The ships became the military benchmarks for future fast sealift Traditionally, world militaries have relied mostly on airlift acquisitions due to the high operational speed, long range and sealift to deploy troops and equipment.
    [Show full text]
  • Good News for Defence 1 Building Defence Capability
    ISSUE NO. 300 – THURSDAY 15TH MAY 2014 SUBSCRIBER EDITION NEWS | INTELLIGENCE | BUSINESS OPPORTUNITIES | EVENTS IN THIS ISSUE NATIONAL NEWS Budget 2014 – Good news for Defence 1 Building defence capability . 3 Beware disaffected employees! . 4 Land 400 decision said to be close . 5 ASC’s hopes for Korean shipbuilding project . 6 Forgacs wins Landing Craft contract . 7 Northrop Grumman in UAS study with RMIT . 8 Another HMAS Jervis Bay opportunity for the RAN? . 8 ADM Online: Weekly Summary . 9 INTERNATIONAL NEWS Spain orders two more Patrol Vessels from Navantia . 9 Look out JSF – Astra BVR missile for India’s Su-30 fleet . 10 Vector Hawk SUAS features Budget 2014 – Good news for rapidly reconfigurable kits for multiple missions . 11 Defence IAI presents SAHAR . 11 FORTHCOMING EVENTS .......13 Nigel Pittaway | Canberra From a Defence point of view, the Abbott Government’s PUBLISHING CONTACTS first budget since gaining office is ‘encouraging’ according to ACTING EDITOR Australian Strategic Policy Institute Analyst Mark Thomson. Nigel Pittaway Tel: 0418 596 131 “It’s as good as it gets in the current climate,” he said. Email: [email protected] The Government said it will provide $29.2 billion in the 2014-15 Editor Katherine Ziesing is on financial year and $122.7 billion over the four-year Forward Estimates maternity leave period. Defence Minister, Senator David Johnston claims this to SENIOR CORRESPONDENT be a $9.6 billion increase on the figure provided by the previous Tom Muir, Tel: 02 6291 0126 government. Email: [email protected] The 2014-15 figures represent 1.8 percent of GDP, against the Government’s pledge to restore Defence spending to two percent PUBLISHING ASSISTANT Erin Pittman, by 2023-24.
    [Show full text]
  • The Australian Naval Architect
    THE AUSTRALIAN NAVAL ARCHITECT Volume 3 Number 4 November 1999 Need a fast ferry design? Call us! phone +61 2 9488 9877 fax +61 2 9488 8144 Email: [email protected] www.amd.com.au THE AUSTRALIAN NAVAL ARCHITECT Journal of The Royal Institution of Naval Architects (Australian Division) Volume 3 Number 4 November 1999 Cover Photo: The RAN’s first wavepiercing catamaran, CONTENTS HMAS Jervis Bay alongside the replenish- ment ship HMAS Success at anchor off Dili, 4 A Note from the Division President East Timor (RAN Photograph). 4 From the Chief Executive 5 Editorial The Australian Naval Architect is published 6 News from the Sections four times per year. All correspondence and 10 Coming Events advertising should be sent to: 11 General News The Editor 27 Education News The Australian Naval Architect 29 Professional Notes c/o RINA 31 Progress in the Prediction of Squat PO Box No. 976 for Ships with a Transom Stern — EPPING, NSW 2121 AUSTRALIA L J Doctors email: [email protected] 35 Typographical corrections for three recently published Regression Based The deadline for the next edition of The Resistance Prediction Methods — Australian Naval Architect (Vol. 4 No. 1, D Peacock, W F Smith and P K Pal February 2000) is Friday 21 January 2000. 40 Industry News Opinions expressed in this journal are not 42 Some marine casualties – Exercises in necessarily those of the Institution. Forensic Naval Architecture (Part 4) — R J Herd The Australian Naval Architect 45 Naval Architects on the Move ISSN 1441-0125 47 From the Archives © Royal Institution
    [Show full text]
  • Analysis of High-Speed Vessels for Seventh Fleet Logistics Support
    Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis Collection 2005-03 Analysis of high-speed vessels for Seventh Fleet logistics support Morgan, Eric A. Monterey, California. Naval Postgraduate School http://hdl.handle.net/10945/2215 NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS ANALYSIS OF HIGH-SPEED VESSELS FOR SEVENTH FLEET LOGISTICS SUPPORT by Eric A. Morgan March 2005 Thesis Advisor: David A. Schrady Second Reader: Steven E. Pilnick Approved for public release; distribution is unlimited. Amateurs discuss strategy, Professionals study logistics REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188) Washington DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED March 2005 Master’s Thesis 4. TITLE AND SUBTITLE: Analysis of High-Speed Vessels for Seventh Fleet 5. FUNDING NUMBERS Logistics Support 6. AUTHOR(S) Eric A. Morgan 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING Naval Postgraduate School ORGANIZATION REPORT Monterey, CA 93943-5000 NUMBER 9. SPONSORING /MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10.
    [Show full text]
  • The Navy Vol 63 Part 2 2001
    TOMAHAWK FOR COE LINS? JULY - SEPTEMBER 2001 including GST) www netspace net .au/-navyleag VOLUlm 63 NO. 3 The Magazine of the Mi league of Australia DD-21; \ JUT 21st century w*^ Dreadnought *\ h Australia's Leading Naval Magazine Since I9JS THE NAVY llu I liium i>l Vnsli.ili.i Join The Navy League of Australia FEDERAL COUNCIL l*utnm in Chief: His Excellency. The Governor General. Volume 63 No. 3 President: Graham M Hams. RID See centre section for how. Vice-Presidents: RADM AJ Robertson. AO. DSC. RAN (Rid): John Bud. CDRE HJ.P. Adams. AM. RAN (Rtdl. CAPT H A Josephs. AM. RAN (Rldi Contents Hon. Secretary: Ray C<*bov. PO B«»\ 309. Ml Waveriey. Vic 3149. Telephone: (03)9888 1977. Fax: (03)9888 1083 TOMAHAWK FOR COLLINS? NEW SOUTH WAI.KS DIVISION By Dr Lee Willelt Page 4 l*atnm: Her Excellency . The Governor of New South Wales. President: R O Albert. AO. RID. Rl> AUSTRALIA'S MARITIME DOCTRINE Hon. Secretary: J C J Jeppesen. OAM. RID. GPO Box 1719. Sydney. NSW IM3 Telephone: (02) 913: 2144. Pax: ((C) 9132 8383. - Voyager' PARTI Page 8 VICTORIAN DIVISION DD-21; THE 2IST CENTURY Patnm: I lis Excellency. The Governor of Victoria. President: J M Wilkms. RID DREADNOUGHT Hon. Secretary : Gavan Bum. PO Box 1303. Box Hill. Vic 3128 Telephone: (03)9841 8570.1;ax: (03)9841 8107 By Sebastian Mathews Page 2(1 photographic, U.V. stabilised, Fmail: qircsC" o/cmail.cumaii Membership Secretary: I CDR Tom Kilhum MBE VRD THEY MUST BE STURDY Telephone: (03)9560 9927.
    [Show full text]
  • Sea Power Centre - Australia
    SEA POWER CENTRE - AUSTRALIA STRENGTH THROUGH DIVERSITY: THE COMBINED NAVAL ROLE IN OPERATION STABILISE Working Paper No. 20 David Stevens © Copyright Commonwealth of Australia 2007 This work is copyright. Apart from any fair dealing for the purpose of study, research, criticism or review, as permitted under the Copyright Act 1968, and with standard source credit included, no part may be reproduced without written permission. Stevens, David 1958 – Published by the Sea Power Centre – Australia Department of Defence Canberra ACT 2600 ISSN 1834 7231 ISBN 978 0 642 29676 4 Disclaimer The views expressed are the author’s and do not necessarily reflect the official policy or position of the Australian Government, the Department of Defence and the Royal Australian Navy. The Commonwealth of Australia will not be legally responsible in contract, tort or otherwise for any statement made in this publication. Sea Power Centre – Australia The Sea Power Centre – Australia (SPC-A) was established to undertake activities to promote the study, discussion and awareness of maritime issues and strategy within the RAN and the Defence and civil communities at large. The mission of the SPC-A is: • to promote understanding of sea power and its application to the security of Australia’s national interests • to manage the development of RAN doctrine and facilitate its incorporation into ADF joint doctrine • to contribute to regional engagement • within the higher defence organisation, contribute to the development of maritime strategic concepts and strategic and
    [Show full text]
  • Senate Inquiry Into the Future of Australia's Naval Shipbuilding Industry
    Tasmanian Government’s submission Senate inquiry into the future of Australia’s naval shipbuilding industry December 2014 0 Table of Contents 1 Introduction ....................................................................................................... 2 2 Defence and regional Australia ....................................................................... 2 3 Tasmania’s capability........................................................................................ 3 1 1 Introduction The Tasmanian Government welcomes the opportunity to contribute to the Senate Inquiry into the future of Australia’s naval shipbuilding industry. Tasmania has significant capability in terms of naval shipbuilding. With our skilled workforce, extensive marine and maritime industrial base and innovative capability, Tasmania is well-placed to have a greater role in delivering products and services to the Australian Defence Force. While the Tasmanian Government accepts that the imperative in terms of Defence procurement must necessarily be to deliver value for money and quality, the Tasmanian Government suggests that Defence procurement should be directed wherever possible towards creating economic outcomes and expanding capability in regional Australia. This would grow and diversify regional economies and improve security of supply for the Australian Defence Force. 2 Defence and regional Australia As noted in the Tasmanian Government’s submission to the Defence White Paper, the Tasmanian Government welcomes the Federal Government’s commitment to
    [Show full text]
  • Need a Fast Ferry Design?
    THE AUSTRALIAN NAVAL ARCHITECT Volume 4 Number 2 May 2000 Need a fast ferry design? Call us! phone +61 2 9488 9877 fax +61 2 9488 8144 Email: [email protected] www.amd.com.au THE AUSTRALIAN NAVAL ARCHITECT Journal of The Royal Institution of Naval Architects (Australian Division) Volume 4 Number 2 May 2000 Cover Photo: 4 From the Division President HMA Ships Jervis Bay and Melbourne leaving 5 Editorial Dili at the end of the INTERFET operation in 6 Letter to the Editor East Timor (RAN Photograph) 7 News from the Sections 10 Coming Events The Australian Naval Architect is published four 13 General News times per year. All correspondence and advertis- ing should be sent to: 31 Education News The Editor 34 From the Crow’s Nest The Australian Naval Architect 37 A Preliminary investigation into the effect c/o RINA of a coach house on the self righting of a PO Box No. 976 modern racing yacht — M Renilson, J EPPING, NSW 1710 Steele and A Tuite AUSTRALIA email: [email protected] 44 America’s Cup technology trickle down — A Dovell, B McRae and J Binns The deadline for the next edition of The Austral- ian Naval Architect (Vol. 4 No. 3, August 2000) 51 Forensic Naval Architecture — R J Herd is Friday 21 July 2000. 55 Professional Notes Opinions expressed in this journal are not nec- 56 The Internet essarily those of the Institution. 57 Membership Notes 57 Naval architects on the move The Australian Naval Architect ISSN 1441-0125 59 From the Archives © Royal Institution of Naval Architects 2000 Editor in Chief: John Jeremy Technical Editor: Phil Helmore RINA Australian Division on the Print Post Approved PP 606811/00009 World Wide Web Printed by B E E Printmail Telephone (02) 9437 6917 www.rina.org.uk/au May 2000 3 From the Division President Ken Hope (Victoria), Bruce McNiece (WA), Those of you with good memories, or effective Tony Armstrong (WA) and Alan Soars (NSW).
    [Show full text]