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Modelling soft body impact on composite structures

Johnson, A. and Holzapfel, M. and Petrinic, N. (2001) Modelling soft body impact on composite structures. European Conference on Computational Mechanics (ECCM-2001), Krakow, Polen, 26-29 Juni 2001.

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Abstract

The paper describes recent progress on materials modelling and numerical simulation of soft body impact on fibre reinforced composite structures. The work is based on the application of explicit finite element (FE) analysis codes to simulate composite shell structures under impact from highly deformable soft impactors such as gelatine or ice, which may flow over the structure spreading the impact load. These soft impactors are modelled here by the smooth hydrodynamic (SPH) method, in which the FE mesh is replaced by interacting particles. An improved composites ply damage mechanics model and interply delamination model are used to predict impact damage in the shell structures. Numerical simulations are compared with gelatine impact test data on glass fabric/epoxy cylinders.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2002,
Title:Modelling soft body impact on composite structures
Authors:
AuthorsInstitution or Email of Authors
Johnson, A.UNSPECIFIED
Holzapfel, M.UNSPECIFIED
Petrinic, N.Oxford University, UK
Date:2001
Status:Published
Keywords:impact modelling, soft bodies, SPH method, composite structures, damage mechanics
Event Title:European Conference on Computational Mechanics (ECCM-2001), Krakow, Polen, 26-29 Juni 2001
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 22:25

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