FEM simulation of high velocity shock waves in fiber reinforced composites

Abstract eng:
Fiber reinforced composites are very efficient in damping shock waves. Computational simulations enable to evaluate the damping properties and to design the structure of the fiber reinforced materials (FRM) and response of the whole structure to explosion and impact load. Especially important is the case when fibers are much stiffer than the matrix. The shock waves reflect, refract and interact in such material and the shock wave is damped and attenuated in this way. Material properties of fibers, matrix and volume content of both components are material design parameters, which define the structural response to explosion and impact load in computational simulations by multi-level modeling. We will present computational models for elastic material. The modulus of elasticity of fibres is 100 times larger than that of the matrix. .

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