Impact simulations for damage resistance analysis are computationally intensive due to contact algorithms and advanced damage models. Both methods, which are the main ingredients in an impact event, require refined meshes at the contact zone to obtain accurate predictions of the contact force and damage onset and propagation through the material. This work presents the application of the partial Dirichlet-Neumann contact algorithm to simulate low-velocity impact problems on composite structures using High-Performance Computing. This algorithm is devised for parallel finite element codes running on supercomputers, and it is extended to explicit time integration schemes to solve impact problems including damage. The proposed framework is validated with a standard test for damage resistance on fiber-reinforced polymer matrix composites. Moreover, the parallel performance of the proposed algorithm has been evaluated in a mesh of 74M of elements running with 2400 processors.

翻译：由于接触算法和先进的损坏模型,抗损害分析模拟在计算上是密集的,这两种方法都是撞击事件的主要成份,在接触区需要精细的密封剂,以便通过材料获得对接触力和损害发生和传播的准确预测,这项工作采用部分Drichlet-Neumann接触算法,利用高性能计算机模拟对复合结构的低速度影响问题。这一算法是为运行在超级计算机上的平行有限要素编码设计的,并扩大到明确的时间整合计划,以解决包括损害在内的撞击问题。拟议的框架经过对纤维加固聚合物复合体复合体的损害抗力标准测试而得到验证。此外,在与24时处理器运行的74M单元中,对拟议算法的平行性能进行了评价。