Simulation of a ballistic impact of a deformable bullet upon a multilayer fabric package
Grįžti į sąrašą
A finite element model of the shooting test against the paraaramyde Twaron multi-layer textiles package structure has been developed in LSDYNA. The bullet has been considered as a deformable body in contact with the fabric package presented by interwoven yarn structure. The simplification of the model has been achieved by presenting the multifilament yarns by thin shell elements the thickness of which represents the real thickness of yarns as it can be measured in the weave. The zones of the fabric remote from the point of impact have been presented as a roughly meshed uniform thin shell model. The junction between the two types of zones of the fabric has been performed by means of the tie constraint and by proper adjustment of material parameters ensuring the same speeds of the wave propagation in the interwoven yarn structure and in the uniform shell. Physical and numerical experiments have been performed in order to identify the material model parameters.
|Leidėjas||WIT Press, 2005|
|Publikacija||Computational Ballistics II : 2nd international conference on computational ballistics, 18-20 May 2005, Cordoba, Spain, p. 41-51|
|Duomenų bazė||CSA Technology Research Database; ISI Proceedings.|