Numerical simulation of out-of-plane impact and compression after impact test on CFRP laminates

Ryo Higuchi, Tomonaga Okabe, Kenichi Yoshioka

研究成果: Conference contribution

抄録

In this study, we propose a numerical simulation method to predict which of three possible damage mechanisms - fiber breakage, matrix crack, or delamination - underlies the damage behavior of carbon fiber reinforced plastics (CFRPs) laminates subjected to out-of-plane impact. To model these damage mechanisms in CFRP laminates, a smeared crack model (for fiber breakage), a continuum damage mechanics (CDM) approach (for matrix cracks), or interface elements (for delamination and large transverse cracks) was implemented in a commercial finite element method (FEM) code. The element size was determined on basis of the cohesive zone length to assess the stress distribution around the crack tip accurately, and all parameters in the proposed damage models were experimentally determined. To verify the accuracy of the proposed numerical method, out-of-plane impact simulations were performed on two kinds of stacking sequence. A comparison of the simulated and experimental results revealed that the predicted damage behaviors and out-of-plane displacement distributions agreed well with the observed results. These findings verify that the proposed numerical method is highly useful for impact simulations.

本文言語English
ホスト出版物のタイトルProceedings of the American Society for Composites - 29th Technical Conference, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting
出版社DEStech Publications
ISBN(電子版)9781605951249
出版ステータスPublished - 2014 1月 1
イベント29th Annual Technical Conference of the American Society for Composites, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting - La Jolla, San Diego, United States
継続期間: 2014 9月 82014 9月 10

出版物シリーズ

名前Proceedings of the American Society for Composites - 29th Technical Conference, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting

Other

Other29th Annual Technical Conference of the American Society for Composites, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting
国/地域United States
CityLa Jolla, San Diego
Period14/9/814/9/10

ASJC Scopus subject areas

  • セラミックおよび複合材料

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