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首页> 外文期刊>Composites Science and Technology >Modelling damage of multiple delaminations and transverse matrix cracking in laminated composites due to low velocity lateral impact
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Modelling damage of multiple delaminations and transverse matrix cracking in laminated composites due to low velocity lateral impact

机译：低速横向冲击对多层复合材料分层和横向基体开裂的破坏建模

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This paper presents the latest development by the authors in modelling damage due to low velocity impact, i.e., negligible role of inertia to laminated composites. The most common modes of damage are transverse cracking and delamination. The problem has been addressed in a series of publications by the authors. Upon a successful partition of the total energy release rate into individual modes, a mixed mode delamination propagation criterion has been employed for modelling delamination propagation, which is also applicable to multiple delamination problems. A simplistic ply-discount technique has been employed to incorporate the effects of transverse matrix cracking. The model has been applied to a number of problems from idealistic DCB to practical problems, such as quasi-static indentation of filament-wound pipes as widely used in offshore and many other industries. An attempt has been made to employ a continuum model to simulate delamination so that it can be implemented using a commercial FE code for wider engineering applications.
机译：本文介绍了作者在对低速冲击造成的损伤进行建模方面的最新进展，即对层压复合材料的惯性作用可忽略不计。最常见的损坏方式是横向裂纹和分层。作者已在一系列出版物中解决了该问题。在将总能量释放速率成功划分为各个模式之后，已采用混合模式分层传播准则来对分层传播进行建模，这也适用于多个分层问题。已经采用了一种简单的层折技术来结合横向基体开裂的影响。该模型已应用于从理想的DCB到实际问题的许多问题，例如在海上和许多其他行业中广泛使用的长丝缠绕管的准静态压痕。尝试采用连续模型来模拟分层，以便可以使用商业FE代码将其实现以用于更广泛的工程应用。

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