モンテカルロ法によるCFRP直交積層板のトランスバースクラック進展解析

Translated title of the contribution: Prediction of the progression of transverse cracking in carbon fiber-reinforced plastic cross-ply laminates using Monte Carlo method

Sota Onodera, Yoshiko Nagumo, Tomonaga Okabe

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, the prediction of the progression of transverse cracking in laminates, including 90° plies, was discussed. A refined stress field (RSF) model was formulated that takes into account the thermal residual strain for plies, including transverse cracks, and the energy release rate associated with transverse cracking was calculated using this RSF model. For comparison, the energy release rate based on a continuum damage mechanics (CDM) model was also formulated. Next, the prediction for the progression of transverse cracking in carbon fiber-reinforced plastic (CFRP) cross-ply laminates, including 90° plies, based on both stress and energy criteria was implemented using Monte Carlo methods. The results showed that the RSF and CDM models proposed in this paper can predict the experiment results for the relationship between the transverse crack density and ply strain in 90° plies. The models presented in this paper can potentially be applied to any arbitrary laminate that includes 90° plies.
Translated title of the contributionPrediction of the progression of transverse cracking in carbon fiber-reinforced plastic cross-ply laminates using Monte Carlo method
Original languageJapanese
Pages (from-to)124
Number of pages132
JournalJournal of the Japan Society for Composite Materials
Volume43
Issue number4
DOIs
Publication statusPublished - Feb 27 2017

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