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

Ryo Higuchi, Tomonaga Okabe, Kenichi Yoshioka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the American Society for Composites - 29th Technical Conference, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting
PublisherDEStech Publications
ISBN (Electronic)9781605951249
Publication statusPublished - 2014 Jan 1
Event29th 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
Duration: 2014 Sep 82014 Sep 10

Publication series

NameProceedings 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
CountryUnited States
CityLa Jolla, San Diego
Period14/9/814/9/10

ASJC Scopus subject areas

  • Ceramics and Composites

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    Higuchi, R., Okabe, T., & Yoshioka, K. (2014). Numerical simulation of out-of-plane impact and compression after impact test on CFRP laminates. In Proceedings of the American Society for Composites - 29th Technical Conference, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting (Proceedings of the American Society for Composites - 29th Technical Conference, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting). DEStech Publications.