Time-depend Deformation of CFRP Sandwich Panels with ROHACELL Core

DOI Web Site Web Site 25 References Open Access

Bibliographic Information

Other Title
  • ロハセルを用いたCFRPサンドイッチパネルの経時変形
  • ロハセル オ モチイタ CFRP サンドイッチパネル ノ ケイジ ヘンケイ
Published
2014
DOI
  • 10.6089/jscm.40.170
Publisher
The Japan Society for Composite Materials

Search this article

Description

In this study, we investigated analytically and experimentally time-dependent deformation of CFRP sandwich panels with polymer foam core ROHACELL due to temperature change and moisture absorption and desorption. Tensile tests for the ROHACELLs were carried out before and after the moisture absorption using digital image correlation method, and we obtained stress–strain relationship in each condition. Surface deformations of sandwich panels were calculated by the finite element analyses considering the elasto-plastic constitutive equation of the ROHACELLs based on the tensile test results. Experimentally measured deformation in the sandwich panels after the moisture absorption was approximately 100μm. This was much larger than the analytical result. The deformations remained in after re-dry condition. On the basis of this study, we suggest that the main reason for the deformation in the sandwich panels could be irreversible shrinkage of the ROHACELLs caused by absorbing moisture during exposed in high temperature and high humidity environment.

Journal

References(25)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top