B. COMPOSITE PRESSURE VESSELS Virtual Testing and Optimization of Dry Wound Pressure Vessels

B. COMPOSITE PRESSURE VESSELS

Virtual Testing and Optimization of Dry Wound Pressure Vessels J-J Koppert, H de Boer, T Weustink (Advanced Lightweight Engineering) A Beukers, H Bersee (TU Delft) At the ICCM-16 conference ALE has presented a first version of its models for virtual testing of dry wound pressure vessels [1]. The present paper deals with several improvements of the virtual testing models and combining these models with automated optimization. As a result, the mass of the pressure vessel was reduced by 17%. Subsequent testing of the optimal design has confirmed the success of the present approach. (B2:1)

A Methodology to Optimize the Lifetime of Hybride Composite Structures: Application to High Pressure Hydrogen Tanks O Comond (Univ of Franche Comté) D Perreux, F Thiebaud, P Delobelle (Inst FEMTO-ST) M Weber, H Barthélémy (Air Liquide) The study focuses on the gaseous hydrogen storage optimization with a HP tank made of a metal liner strengthened by a composite laminate. Indeed, an early failure appears when the structure is submitted to cyclic high pressure (700 bar). This paper gives tools to improve its lifetime by a better modelling of the composite structure. (B2:2)

Design of Cylindrical Composite Pressure Vessels: Integral Optimisation

S Koussios, OK Bergsma (TU Delft) In this paper we outline an analytical method for the integral optimisation of cylindrical composite pressure vessels incorporating additional constraints like pattern consistency and strain compatibility at the cylinder dome intersection. The results reveal that designs exclusively based on shape and material parameters are in some cases far from optimal. (B2:3)

Composite Pressure Fuselages for Blended Wing Bodies F Geuskens, O Bergsma, S Koussios (TU Delft) This paper presents the analytical research on a composite multi-bubble to be applied as a new pressure fuselage for Blended Wing Bodies. (B2:4)

Impact Characterisation of Doubly Curved Composite Structures D Nash, Opus David-West, WM Banks (Univ of Strathclyde) A series of low velocity, impact drop-tests has been carried out on doubly curved composite shells. A repeated and non-penetrating loading regime is applied. The experimental setup and analytical approach is developed and impact energy and structural response and progressive damage is characterised for various configurations of hemi-spherical domes. (B2:5)