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Numerical prediction of damage in composite structures from soft body impacts

机译:软体结构碰撞对复合结构破坏的数值预测

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摘要

The paper summarises recent progress on materials modelling and numerical simulation of soft body impact damage in fibre reinforced composite aircraft structures. The work is based on the application of finite element (FE) analysis codes to simulate damage in composite shell structures under impact loads. Composites ply damage models and interply delamination models have been developed and implemented in commercial explicit FE codes. Models are discussed for predicting impact loads on aircraft structures arising from deformable soft bodies such as gelatine (synthetic bird) and ice (hailstone). The composites failure models and code developments are briefly summarised and applied in the paper to numerical simulation of synthetic bird impact on idealised composite aircraft structures.
机译:本文总结了纤维增强复合材料飞机结构的材料建模和软体冲击破坏数值模拟的最新进展。这项工作是基于有限元(FE)分析代码的应用来模拟复合壳结构在冲击载荷下的损坏。复合材料层板损坏模型和层间分层模型已经在商业上显式的FE代码中开发和实施。讨论了用于预测由可变形软体(例如明胶(合成鸟)和冰(冰石))引起的飞机结构撞击载荷的模型。简要总结了复合材料破坏模型和代码开发,并将其应用于合成鸟对理想复合材料飞机结构的冲击的数值模拟。

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