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Simulation of Wave Propagation and Impact Damage in Brittle Materials Using Peridynamics

机译:使用白颌骨仿真脆性材料的仿真和脆性材料的影响

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In this paper we present the results of simulating wave propagation and impact damage in brittle materials, like ceramics, using peridynamics, a non-local generalization of continuum mechanics. Two different bond-based material models, the prototype microelastic material model and its improved version, were used to model aluminum oxynitride (ALON). To validate the simulations, the speed of the wave front is compared with measured data of the edge-on impact (EOI) experiment. The presented simulation results indicate that convergence is attained, however, a modeling error of 10% remains. Which indicates that simple bond-based peridynamics models may not be sufficient to achieve sufficient accuracy in these applications, but more sophisticated state-based peridynamics models must be employed.
机译:在本文中,我们介绍了模拟波传播和脆性材料的冲击损伤的结果,如陶瓷,使用角度,连续式力学的非局部概括。两种不同的基于键的材料模型,原型微弹性材料模型及其改进的版本用于模拟氧氮化铝(Alon)。为了验证仿真,将波前的速度与边缘冲击(EOI)实验的测量数据进行比较。呈现的仿真结果表明,实现了收敛,但剩余10%的建模误差。这表明简单的基于粘接的白心语模型可能不足以在这些应用中获得足够的准确性,但必须采用更复杂的状态性斜肌模型。

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