DOCSLIB.ORG

Lightening Body Armor

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

CHILDREN AND FAMILIES The RAND Corporation is a nonprofit institution that helps improve policy and EDUCATION AND THE ARTS decisionmaking through research and analysis. ENERGY AND ENVIRONMENT HEALTH AND HEALTH CARE This electronic document was made available from www.rand.org as a public service INFRASTRUCTURE AND of the RAND Corporation. TRANSPORTATION INTERNATIONAL AFFAIRS LAW AND BUSINESS Skip all front matter: Jump to Page 16 NATIONAL SECURITY POPULATION AND AGING PUBLIC SAFETY Support RAND SCIENCE AND TECHNOLOGY Purchase this document TERRORISM AND Browse Reports & Bookstore HOMELAND SECURITY Make a charitable contribution For More Information Visit RAND at www.rand.org Explore the RAND Arroyo Center View document details Limited Electronic Distribution Rights This document and trademark(s) contained herein are protected by law as indicated in a notice appearing later in this work. This electronic representation of RAND intellectual property is provided for non- commercial use only. Unauthorized posting of RAND electronic documents to a non-RAND website is prohibited. RAND electronic documents are protected under copyright law. Permission is required from RAND to reproduce, or reuse in another form, any of our research documents for commercial use. For information on reprint and linking permissions, please see RAND Permissions. This product is part of the RAND Corporation technical report series. Reports may include research findings on a specific topic that is limited in scope; present discussions of the methodology employed in research; provide literature reviews, survey instru- ments, modeling exercises, guidelines for practitioners and research professionals, and supporting documentation; or deliver preliminary findings. All RAND reports un- dergo rigorous peer review to ensure that they meet high standards for research quality and objectivity. TECHNICAL REPORT Lightening Body Armor Arroyo Support to the Army Response to Section 125 of the National Defense Authorization Act for Fiscal Year 2011 Kenneth Horn • Kimberlie Biever • Kenneth Burkman • Paul DeLuca Lewis Jamison • Michael Kolb • Aatif Sheikh ARROYO CENTER The research described in this report was sponsored by the United States Army under Contract No. W74V8H-06-C-0001. Library of Congress Cataloging-in-Publication Data Lightening body armor : Arroyo support to the Army response to Section 125 of the National Defense Authorization Act for Fiscal Year 2011 / Kenneth Horn ... [et al.]. p. cm. Includes bibliographical references. ISBN 978-0-8330-5844-7 (pbk. : alk. paper) 1. Body armor—Standards—United States. 2. Body armor—United States—Testing. 3. United States. Dept. of Defense—Appropriations and expenditures. I. Horn, Kenneth P., 1937- II. Rand Corporation. III. Arroyo Center. U825.L54 2012 623.4'41—dc23 2012003923 The RAND Corporation is a nonprofit research organization providing objective analysis and effective solutions that address the challenges facing the public and private sectors around the world. RAND’s publications do not necessarily reflect the opinions of its research clients and sponsors. R® is a registered trademark. © Copyright 2012 RAND Corporation Permission is given to duplicate this document for personal use only, as long as it is unaltered and complete. Copies may not be duplicated for commercial purposes. Unauthorized posting of RAND documents to a non-RAND Web site is prohibited. RAND documents are protected under copyright law. For information on reprint and linking permissions, please visit the RAND permissions page (http://www.rand.org/publications/ permissions.html). Published 2012 by the RAND Corporation 1776 Main Street, P.O. Box 2138, Santa Monica, CA 90407-2138 1200 South Hayes Street, Arlington, VA 22202-5050 4570 Fifth Avenue, Suite 600, Pittsburgh, PA 15213-2665 RAND URL: http://www.rand.org To order RAND documents or to obtain additional information, contact Distribution Services: Telephone: (310) 451-7002; Fax: (310) 451-6915; Email: [email protected] Preface The body armor that U.S. forces wear in Afghanistan is effective against ballistic threats: There have not been any known penetrations of the body armor or fatalities when the currently issued body armor was struck by projectiles it was designed to stop. However, the combat loads that dismounted soldiers and marines carry on patrol are very heavy, and a large portion of this load is due to body armor. Congress asked the question, How can body armor weight be reduced? Congress’s per- ception is that the Department of Defense has been slow in developing and deploying lighter- weight body armor. In Section 125 of the National Defense Authorization Act for Fiscal Year 2011, Congress requested that a federally funded research and development center conduct a study of lightening body armor. RAND Arroyo Center was selected to perform this study and was sponsored by Dr. Scott Fish, Army Chief Scientist, Assistant Secretary of the Army for Acquisition, Logistics and Technology. This document should interest those involved with lightening body armor and the combat loads of dismounted soldiers and marines. The research was conducted in RAND Arroyo Center’s Force Development and Technol- ogy Program. RAND Arroyo Center, part of the RAND Corporation, is a federally funded research and development center sponsored by the United States Army. The Project Unique Identification Code (PUIC) for the project that produced this docu- ment is HQD116049. For more information on RAND Arroyo Center, contact the Director of Operations (telephone 310-393-0411, extension 6419; FAX 310-451-6952; email Marcy_Agmon@rand. org) or visit the Arroyo Center’s website at http://www.rand.org/ard/. iii Contents Preface ........................................................................................................... iii Figures and Tables .............................................................................................vii Summary ........................................................................................................ ix Acknowledgments ............................................................................................xiii Abbreviations ...................................................................................................xv CHAPTER ONE Introduction ..................................................................................................... 1 Purpose of the Study ............................................................................................. 1 Study Caveats ..................................................................................................... 2 Research Approach ............................................................................................... 3 Literature Review .............................................................................................. 3 Interviews ....................................................................................................... 3 Independent Analyses ......................................................................................... 3 Organization of This Document ............................................................................... 3 CHAPTER TWO Background ...................................................................................................... 5 Soldier Combat Load Is Daunting ............................................................................. 5 Average Combat Loads for Soldiers and Marines .......................................................... 5 Load Impacts Performance ................................................................................... 6 Body Armor Weight Contributes to the Overall Load .................................................... 9 Current Body Armor Is Effective ..............................................................................10 Body Armor Must Be Capable of Handling Multiple Ballistic Round Penetrations and Limiting Backface Deformation..........................................................................11 Basis for the Two Requirements .............................................................................11 Summary .........................................................................................................12 CHAPTER THREE Four Approaches to Lightening Body Armor ............................................................15 Refining Requirements .........................................................................................15 Assessing Threats .............................................................................................15 Tailoring Body Armor as a Means to Lighten Body Armor .............................................17 Using Modular Configurations ...............................................................................17 Examples of Modular Configurations ......................................................................18 Coverage Versus Weight .....................................................................................18 v vi Lightening Body Armor Body Armor Protection Levels ............................................................................. 20 Using Modular Configurations as a Means to Lighten Body Armor ...................................21 Improving Testing ............................................................................................. 22 Literature Review ............................................................................................ 22 Our Findings Regarding
Recommended publications
  • Piecing Together the Construction of Soft Body Armor

    Piecing Together the Construction of Soft Body Armor

    By Jeannine Heinecke Piecing together the construction of soft body armor hen I started in law today’s soft body armor is becoming “W enforcement in the mid- a more sleek, comfortable, flexible, 1970s, the first vest I got looked life-protecting second skin for law and felt like a Manhattan Yellow enforcement officers. With this evo- Pages wrapped in a plastic bag,” lution comes improved wear rates describes Georg Olsen, a long-time and more lives saved. “Officers aren’t veteran of law enforcement and obstinate or stupid,” comments general manager of U.S. Armor, Olsen. “They want the protection, located in Cerritos, California. but they have to have the flexibility Through the evolution of ballistic and mobility to do their jobs.” fibers and construction methods, Part of finding the right protec- U.S. Armor’s Tactical Assault Vest (T.A.V.) and Terminal Velocity series vest. tion is making an educated deci- Wagner, manager of technology construction allows for faster ener- sion when purchasing soft body for Honeywell’s Advanced Fibers gy dissipation and reduced back- armor. Officers need to know and Composites Group. “It has face deformation — the energy that the types of fibers used, how a an orientation and regularity. The was not dissipated by the vest and vest should properly fit and the order of the molecular chains is will impact the body. advancements in construction aligned along the length of the Honeywell discovered this pro- methods leading to more fiber, which helps with the trans- cess not only works for HPPE comfortable, wearable vests.
  • To Read Article As

    To Read Article As

    He can see through walls, His Helmet is video-connected, and His rifle Has computer precision. We cHeck out tHe science (and explosive poWer) beHind tHe technology tHat’s making tHe future of the military into Halo come to life. by StinSon Carter illustration by kai lim want the soldier to think of himself as the $6 battalions. Today we fight with Small Tactical Units. Million Man,” says Colonel Douglas Tamilio, And the heart of the Small Tactical Unit is the single project manager of Soldier Weapons for the U.S. dismounted soldier. Army. In case you haven’t heard, the future of In Afghanistan, as in the combat zones of the fore­ warfare belongs to the soldier. The Civil War was fought seeable future, we will fight against highly mobile, by armies. World War II was fought by divisions. Viet­ highly adaptive enemies that blend seamlessly into nam was fought by platoons. Operation Desert Storm their environments, whether that’s a boulder­strewn was fought by brigades and the second Iraq war by mountainside or the densely populated urban jungle. enhanced coMbaT heLMeT Made from advanced plastics rather than Kevlar, the new ECH offers 35 percent more protection GeneraTion ii than current helmets. heLMeT SenSor The Gen II HS provides the wearer with analysis of explosions and any neTT Warrior other potential source This system is designed to provide of head trauma. vastly increased situational awareness on the battlefield, allowing combat leaders to track the locations and health ModuLar of their teams, who are viewing tactical LiGhTWeiGhT information via helmet-mounted Load-carryinG computer screens.
  • NCO Journal October 05.Pmd

    NCO Journal October 05.Pmd

    VOL: 14, ISSUE: 4 OCT 2005 A QUARTERLY FORUM FOR PROFESSIONAL DEVELOPMENT Soldiers in a Humvee search for people wishing to be rescued from Hurricane Katrina floodwaters in downtown New Orleans. Photo courtesy of www.army.mil. by Staff Sgt. Jacob N. Bailey INSIDE“ ON POINT 2-3 SMA COMMENTS IRAQI CULTURE: PRICELESS Tell the Army story with pride. They say “When in Rome, do 4-7 NEWS U CAN USE as the Romans.” But what do you know about Iraqi culture? The Army is doing its best to LEADERSHIP ensure Soldiers know how to “ manuever as better ambassa- dors in Iraq. DIVORCE: DOMESTIC ENEMY Staff Sgt. Krishna M. Gamble 18-23 National media has covered it, researchers have studied it and the sad fact is Soldiers are ON THE COVER: living it. What can you as Spc. Eric an NCO do to help? Przybylski, U.S. Dave Crozier 8-11 Army Pacific Command Soldier of the Year, evaluates NCO AND SOLDIER OF THE YEAR a casualty while he Each year the Army’s best himself is evaluated NCOs and Soldiers gather to during the 2005 NCO compete for the title. Find out and Soldier of the who the competitors are and Year competition more about the event that held at Fort Lee, Va. PHOTO BY: Dave Crozier embodies the Warrior Ethos. Sgt. Maj. Lisa Hunter 12-17 TRAINING“ ALIBIS NCO NET 24-27 LETTERS It’s not a hammer, but it can Is Detriot a terrorist haven? Is Bart fit perfectly in a leader’s Simpson a PsyOps operative? What’s toolbox.
  • Basic-Armouring-2Of4.Pdf

    Basic-Armouring-2Of4.Pdf

    Chapter 8 — Padding Because you need to build your armour around your padding you need to know how to make it first! Gamberson This supplies basic padding under the body armour and something to hang your arm armour off. Some people rely on their gamberson (with a few minor additions such as a kidney belt) as their torso protection. This gives them excellent mobility at the expense of protection. If you are learning to fight, as well as armour, you are liable to get hit a lot so body armour might not be a bad idea—your choice! Making a gamberson is a sewing job; go get a needle and thread or borrow a sewing machine. The material you make it from should be relatively tough (it’s going to take a beating), adsorbent (you are going to sweat into it), colour fast (unless you want to start a new fashion in oddly coloured flesh) and washable (see sweating above). Period gambersons were made from multiple layers of cloth stitched together or padded with raw wool or similar material, modern ones often use an internal fill of cotton or polyester batting to achieve the same look with less weight. A descrip- tion of an arming doublet of the 15th century is “a dowbelet of ffustean (a type of heavy woollen broad cloth) lyned with satene cutte full of hoolis”. A heavy outer material, such as canvas or calico, is therefore appropriate with a softer lining next to the skin. For extra ventilation you can add buttonholes down the quilting seams.
  • Soldier Armed Body Armor Update by Scott R

    Soldier Armed Body Armor Update by Scott R

    Soldier Armed Body Armor Update By Scott R. Gourley In a June 2006 statement before the dier Survivability with the Office of House Armed Services Committee, Program Executive Office Soldier, the mong the most significant recent then-Maj. Gen. Stephen M. Speakes, latest system improvements inte- Adevelopments that directly in- who was director, Force Development, grated into the new improved outer crease warfighter safety and effective- Office of the Deputy Chief of Staff, G-8, tactical vest, as with earlier advances, ness are the enhancements to the pro- offered a brief chronology of the IBA reflect additional feedback from sol- tective ensemble known as Interceptor program, which highlighted the link- diers in the field. body armor (IBA). As the most up-to- age between that program’s evolution “We receive that feedback in differ- date body armor available, IBA is a and warfighter feedback. ent ways,” Myles explained. “One way, modular body armor system that con- I 1999—The Army started fielding for example, was through a soldier pro- sists of an outer vest, ballistic plates the OTV with small arms protective tection demonstration that we con- and attachments that increase the areas inserts (SAPI) to soldiers deployed in ducted in August 2006 at Fort Benning, of coverage. The system increases sol- Bosnia. Ga. We had industry provide us some dier survivability by stopping or slow- I April 2004—Theater reported 100 body armor for soldiers to evaluate. ing bullets and fragments and reducing percent fill of 201,000 sets of IBA (OTV These were soldiers that had just re- the number and severity of wounds.
  • Computational Modeling of Primary Blast Effects on the Human Brain

    Computational Modeling of Primary Blast Effects on the Human Brain

    Computational Modeling of Primary Blast Effects on the Human Brain by Michelle K. Nyein S.B., Chemistry, Massachusetts Institute of Technology (2004) J.D., Harvard University (2007) S.M., Aeronautics and Astronautics, Massachusetts Institute of Technology (2010) Submitted to the Department of Aeronautics and Astronautics in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Aeronautics and Astronautics at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY June 2013 c Massachusetts Institute of Technology 2013. All rights reserved. Author............................................. ...................................... Department of Aeronautics and Astronautics March 4, 2013 Certified by.......................................... ..................................... Ra´ul Radovitzky Professor of Aeronautics and Astronautics Thesis Supervisor Certified by.......................................... ..................................... Dava J. Newman Professor of Aeronautics and Astronautics Certified by.......................................... ..................................... Laurence R. Young Apollo Program Professor of Aeronautics and Astronautics Certified by.......................................... ..................................... Simona Socrate Principal Research Scientist, Institute for Soldier Nanotechnologies Certified by.......................................... ..................................... David F. Moore Attending Neurologist, Baylor University Medical Center Accepted by........................................
  • M a S T E R C a T a L

    M a S T E R C a T a L

    YOU’LL WEAR IT.TM MASTER CATALOG QUALITY | COMFORT | VALUE “” YOU’LL WEAR IT! STEPHEN ARMELLINO PRESIDENT, CEO THANK YOU FOR YOUR SERVICE. For more than 30 years, we at U.S. Armor have had the honor of outfitting the law enforcement and military communities with superior body armor and protective equipment. As former servicemen, officers or family members of both, myself and our dedicated team members take incredible pride and care in the design and construction of our armor and protective equipment. We are thankful for the opportunity to support you in serving us all. As you know, your armor is only effective if it’s worn and therefore, we have committed ourselves to producing the lightest, safest, and most dynamic armor. It is with your comfort and performance needs in mind that we select the most innovative, respected material suppliers and partners and seek to advance our offerings as applicable. While we solemnly ensure that our products are compliant with all applicable standards and requirements, our primary objective is to protect and support you, so you can focus on effectively doing your job. We thank you for your trust in us and in return, we promise to deliver superior body armor that you’ll comfortably wear. Sincerely, - STEPHEN ARMELLINO A HISTORY TO PROTECT U.S. ARMOR has provided superior body armor and He has taken his father’s protective products for more than three decades. Our designs into the 21st legacy dates back to Richard Armellino, Sr., father of century with U.S. Armor’s current U.S.
  • HONEYCOMB in HYBRID COMPOSITE ARMOR RESISTING DYNAMIC IMPACT by ADVAIT BHAT Bachelor of Science in Mechanical Engineering Un

    HONEYCOMB in HYBRID COMPOSITE ARMOR RESISTING DYNAMIC IMPACT by ADVAIT BHAT Bachelor of Science in Mechanical Engineering Un

    HONEYCOMB IN HYBRID COMPOSITE ARMOR RESISTING DYNAMIC IMPACT By ADVAIT BHAT Bachelor of Science in Mechanical Engineering University of Mumbai Mumbai, Maharashtra, India 2007 Master of Science in Mechanical and Aerospace Engineering Oklahoma State University Stillwater, Oklahoma 2009 Submitted to the Faculty of the Graduate College of the Oklahoma State University in partial fulfillment of the requirements for the Degree of DOCTOR OF PHILOSOPHY JULY 2015 HONEYCOMB IN HYBRID COMPOSITE ARMOR RESISTING DYNAMIC IMPACT Dissertation approved: Dr. Jay C. Hanan Dissertation Adviser Dr. Sandip P. Harimkar Dr. Raman P. Singh Dr. Semra Peksoz Outside Committee Member ii ACKNOWLEDGEMENTS I thank financial support for this work by MetCel LLC and the Helmerich Research Center through grants to the Oklahoma State University Foundation. Funding from the Oklahoma Center for Advancement and Technology - Oklahoma Applied Research Support (OCAST-OARS Award Nos. AR12.-041, AR 131-037) and the National Science Foundation (NSF Award No: 1214985) was critical for the project success. I thank my adviser Dr. Jay Hanan for his guidance and supervision during the entire span of this project. I express my deepest gratitude for his continuous motivation and patience during my academic endeavor at Oklahoma State University. I thank my outside committee member Dr. Semra Peksoz for being my mentor on body armor and familiarizing me with their design principles and prevalent test procedures. I gratefully thank Dr. Raman Singh and Dr. Sandip Harimkar for being on my dissertation committee. I extended my appreciation to the personnel from DSM Dyneema, The Safariland group, US Shooting Academy, and Leading Technology Composites for their assistance on ballistic tests.
  • (Xzxx/ Xx X X^X. X7 Xx X7 Xzx 24

    (Xzxx/ Xx X X^X. X7 Xx X7 Xzx 24

    USOO786.6248B2 (12) United States Patent (10) Patent No.: US 7.866,248 B2 Moore, III et al. (45) Date of Patent: Jan. 11, 2011 (54) ENCAPSULATED CERAMIC COMPOSITE 3.684,631 A 8, 1972 Dunbar ........................ 428/46 ARMOR 3,765.299 A 10/1973 Pagano et al. 3,804,017 A 4, 1974 Venable et al. (75) Inventors: Dan T. Moore, III, Cleveland Heights, 3,815,312 A 6, 1974 Lench OH (US); Ajit Sane, Medina, OH (US); 3,826,172 A 7, 1974 Dawson Jeff Lennartz, Cleveland, OH (US); 3,834,948 A 9, 1974 Brickner et al. : . s 3,916,060 A * 10/1975 Fish et al. ................ 428,2994 Bruce O. Budinger, Chagrin Falls, OH 4,111,097 A 9, 1978 Lasker (US); James L. Eucker, North 4,125,053 A 1 1/1978 Lasker Ridgeville, OH (US); Charles M. 4,179,979 A 12/1979 Cook et al. Milliren, Chesterland, OH (US) 4,316,404 A 2f1982 Medlin 4,320,204 A 3, 1982 Weaver (73) Assignee: Intellectual Property Holdings, LLC, 4,352,316 A 10/1982 Medlin Cleveland, OH (US) 4,368,660 A 1, 1983 Held 4.404,889 A 9/1983 Miguel (*) Notice: Subject to any disclaimer, the term of this 4,446,190 A 5/1984 Pernici patent is extended or adjusted under 35 (Continued) U.S.C. 154(b) by 552 days. FOREIGN PATENT DOCUMENTS (21) Appl. No.: 11/656,603 EP 287918 A1 10, 1988 (22) Filed: Jan. 23, 2007 (Continued) (65) Prior Publication Data OTHER PUBLICATIONS US 2009/O114083 A1 May 7, 2009 M.L.
  • Ballistic Protection: New Products and Developments

    Ballistic Protection: New Products and Developments

    Ballistic protection: New products and developments In 2017, Teijin Aramid is launching two new ballistic protection products: Endumax Shield XF33, a plate solution for vehicles, vessels and body armor, and Twaron ComForte SB3, a highly flexible solution specifically developed for body armor products. In addition, Teijin Aramid’s Application Competence Center in Wuppertal, Germany, has increased its testing output by 83% over the past year. These developments will allow Teijin Aramid to continue providing a high level of service to its customers, offer a broader product portfolio, and maintain its competitive position in the global ballistic protection market. A unique focus on ballistic protection “For over 30 years, Teijin Aramid has been developing high-performance ballistic protection solutions that have saved countless lives,” says Manon Schuurmans, Business Department Manager Ballistics at Teijin Aramid. “During this time, we’ve built up a complete portfolio of both aramid and UHMW-PE based products and solutions for both personal protection and protective equipment. In addition, our technical team has developed extensive know-how and expertise in several specific ballistic application areas fo body armor, helmets, ground vehicle, vessels and aerospace. Thanks to our experience and state-of-the-art research and development facilities, Teijin Aramid is in a unique position Supported by high levels of technical expertise to address the market needs for ballistic protection.” “We wouldn’t have been able to launch our new products without our high levels of technical knowledge and high- New products: Endumax Shield XF33 and Twaron quality research facilities,” says Manon. “Specifically, our ComForte SB3 Application Competence Center in Wuppertal is “In 2017, we’re launching Endumax Shield XF33 and Twaron instrumental to driving our ballistic protection propositions.
  • Ceramic Armor Materials by Design Kindle

    Ceramic Armor Materials by Design Kindle

    CERAMIC ARMOR MATERIALS BY DESIGN PDF, EPUB, EBOOK A. Crowson | 652 pages | 01 Feb 2003 | American Ceramic Society | 9781574981483 | English | Ohio, United States Ceramic Armor Materials by Design PDF Book Those fragments can be deadly. Body Armor Materials How To. It is possible to cast and fire curved ceramic armor and other high precision ceramics. It would be slightly heavier than steel armor, but only by about 4 percent. Neuheiten A Companion to Contemporary British This gave me a panel that was 0. Steel armor plates are widely available and used but do not necessarily make the most effective choice. The most common of these is the 9mm, although different levels specify different muzzle velocities. It may be they will stop a. Compare 0 materials. If the bottle were filled with soda it would explode upon the round penetrating one wall. There was an attempted bank robbery years ago in Southern California. I did not try a penetration test with. The specifications for ballistic body armor levels come from the National Institute of Justice and provide specific rounds that are to be fired at the body armor in testing for each level. Stopping the bullet does little good if your rib breaks and pierces your lung or heart. I decided I needed to test this one out. Fill the buckets with sand… then add water. Bridgerton by Julia Quinn. Dragon Skin body armor is one these systems, although it has failed numerous tests performed by the US Army, and has been rejected. R Dandekar and E. There is a lot of space between sand grains….
  • Ballistic Helmets – Their Design, Materials, and Performance Against Traumatic Brain Injury

    Ballistic Helmets – Their Design, Materials, and Performance Against Traumatic Brain Injury

    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln US Army Research U.S. Department of Defense 2013 Ballistic helmets – Their design, materials, and performance against traumatic brain injury S.G. Kulkarni Texas A&M University, [email protected] X.-L. Gao University of Texas at Dallas, [email protected] S.E. Horner U.S. Army, Fort Belvoir J.Q. Zheng U.S. Army, Fort Belvoir N.V. David Universiti Teknologi MARA Follow this and additional works at: https://digitalcommons.unl.edu/usarmyresearch Kulkarni, S.G.; Gao, X.-L.; Horner, S.E.; Zheng, J.Q.; and David, N.V., "Ballistic helmets – Their design, materials, and performance against traumatic brain injury" (2013). US Army Research. 201. https://digitalcommons.unl.edu/usarmyresearch/201 This Article is brought to you for free and open access by the U.S. Department of Defense at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in US Army Research by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Composite Structures 101 (2013) 313–331 Contents lists available at SciVerse ScienceDirect Composite Structures journal homepage: www.elsevier.com/locate/compstruct Review Ballistic helmets – Their design, materials, and performance against traumatic brain injury ⇑ S.G. Kulkarni a, X.-L. Gao b, , S.E. Horner c, J.Q. Zheng c, N.V. David d a Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, United States b Department of Mechanical Engineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080-3021, United States c Program Executive Office – SOLDIER, U.S.