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首页> 外文期刊>Journal of Mechanical Science and Technology >Dynamic fracture analysis for 2D multilayered glass structures considering interlayer effects
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Dynamic fracture analysis for 2D multilayered glass structures considering interlayer effects

机译：考虑层间效应的2D多层玻璃结构动态断裂分析

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摘要

In this paper, we discuss the efficient peridynamic analysis for dynamic fracturing multilayered structures. Peridynamics is an effective computational method for dealing with cracks and damages in solid mechanics. However, its computational cost limits its applications, especially for multilayered structures laminated by relatively thick plies and thin interlayers. We introduce an implicit modeling scheme in which the interlayer is modeled by peridynamic ghost particles with proper nonlocal interactions while the ply is done by actual particles. The efficiency and accuracy of this nonlocal ghost interlayer are evaluated. We also investigate various characteristics of dynamic fracture correlated to interlayer effects and elastic backings. The interlayer plays many important roles in the dynamic fracturing of whole structures because it binds adjacent plies and restrains their motion. Through the peridynamic dynamic fracture analysis of 2D multilayered structures, we can conclude that the elastic deformation of interlayer and energy transferring between layers through interlayer have a considerable effect on fracture patterns of multilayered structures. This was confirmed by investigating propagations and interactions of strain energy.
机译：在本文中，我们讨论了动态压裂多层结构的高效性逆动脉分析。宫爱动力学是一种处理固体力学裂缝和损坏的有效计算方法。然而，其计算成本限制了其应用，特别是对于由相对厚的帘布层和薄夹层层压的多层结构。我们介绍了一种隐式建模方案，其中层间由白脑重血颗粒建模，其具有适当的非局部相互作用，而PLY通过实际颗粒进行。评估该非本体重影层间的效率和准确性。我们还研究了与层间效应和弹性背衬相关的动态断裂的各种特征。中间层在整个结构的动态压裂中起很多重要作用，因为它绑定了相邻的层并限制了它们的运动。通过2D多层结构的白动力断裂分析，我们可以得出结论，通过层间层间层间和能量转移的弹性变形对多层结构的裂缝模式具有相当大的影响。通过调查应变能量的传播和相互作用来证实这一点。

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