The Impact Behavior of Composite Sandwich Used in Ship Structures

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概要

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• The impact behavior of composite sandwich panels subjected to a cylindrical impactor is investigated numerically and experimentally. Three kinds of facesheets and two different core densities of sandwich panels are considered in the impact analysis. During the experiment, the impact force and strain history are measured, and the failure is inspected by visual observations. The experimental results show that the impact behavior is mainly controlled by core material. The ABAQUS finite element software is used to analyze the impact responses of sandwich panels. Because of line load conditions, the sandwich panels impacted by the cylindrical impactor is modeled as a 2-D plane strain problem. The numerical results of impact force and strain history are compared with those measured in experiment, it is shown that the experimental results are in good agreement with the finite element solutions. Further, the stresses of sandwich panels are examined. The maximum stress failure criterion is used to estimate the fracture initiation of sandwich panels. Then the experimental and numerical results are compared and discussed.

• 社団法人日本船舶海洋工学会の論文

著者

• Lin H.j.

  Associate Professor Of Institute Of Naval Arch. And Ocean Eng. National Taiwan University

• Lee Y.j.

  Professor Of Institute Of Naval Arch. And Ocean Eng. National Taiwan University

• Shyu Y.

  Master Student of Institute of Naval Arch. and Ocean Eng., National Taiwan University

• Shyu Y

  Ntu Taipei Twn

関連論文

• The Impact Behavior of Composite Sandwich Used in Ship Structures

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