Low Velocity Impact Behavior Analysis of Sandwich Beam Used in Ship Structures

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概要

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• The low-velocity impact behavior of sandwich beam subjected to the cylindrical impactor is investigated numerically. Finite element software ABAQUS is used, and maximum stress failure criterion and a modified stiffness degradation method are adopted to analyze the failure behavior of sandwich beam, including initiation of failure, and failure modes. The two failure modes ; shear cracks in foam (Mode I), and crushed in core and damage in the top face sheets right underneath the impactor (Mode II) can be simulated well. At the range of impact velocity on this study, it can be shown that the dynamic responses of sandwich beam are nearly quasi-static, therefore, the dynamic behavior of sandwich beam such as impact force history can be approximately obtained from static results.

• 社団法人日本船舶海洋工学会の論文

著者

• Lee Ya-jung

  Institute Of Naval Arch. And Ocean Eng Ntu

• Shyu Yau

  Institute of Naval Arch. And Ocean Eng, NTU

• Shyu Yau

  Institute Of Naval Arch. And Ocean Eng Ntu

関連論文

• Low Velocity Impact Behavior Analysis of Sandwich Beam Used in Ship Structures

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