NUMERICAL PREDICTION OF STRENGTH OF NOTCHED UD LAMINATES BY ANALYZING THE PROPAGATION OF INTRA-AND INTER-LAMINAR DAMAGE

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概要

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• To predict the strength of notched unidirectional(UD)fiber reinforced laminates, computational modeling method is shown as well as its verification. Both intra-laminar damage such as fiber breaking matrix cracking and fiber-matrix interface debonding and inter-laminar damage such as delamination occur and propagate up to the final breaking. In the proposed numerical method, the occurrence of the intra-laminar damage is judged by Hoffman's failure criterion and its propagating behavior is the theoretically formulated by anisotropic damage mechanics. The delamination is numerically treated by introducing inter-laminar element(IE)in the finite element analysis. Applying the proposed method to CFRP lami-nates with a hole under tensile load, the damage mode in each lamina and the notched strength have been predicted. By comparison with the experimental results, the validity and the reliability of out simulation have been recognized.

• 社団法人日本材料学会の論文
• 1996-06-15

著者

• Tsumura Takuya

  Graduate Student Osaka University

• Zako Masaru

  Faculty Of Engineering Department Of Welding And Production Engineering Osaka University

• TAKANO Naoki

  Faculty of Engineering, Department of Welding and Production Engineering, Osaka University

• Takano Naoki

  Faculty Of Engineering Department Of Welding And Production Engineering Osaka University

関連論文

• NUMERICAL PREDICTION OF STRENGTH OF NOTCHED UD LAMINATES BY ANALYZING THE PROPAGATION OF INTRA-AND INTER-LAMINAR DAMAGE
• Preface

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