Stochastic Inverse Analysis of Transverse Crack Saturation Behavior in CFRP Laminate by Markov process

DOI Web Site 18 References
  • MATSUDA Shinya
    Area in Adv. Mater. Sci., Dept. of Eng. and Design, Faculty of Eng. and Design, Kagawa University
  • UEHARA Ryoya
    Division of Adv. Mater. Sci, Graduate School of Engineering, Kagawa University
  • GODA Koichi
    Department of Mechanical Engineering, Yamaguchi University

Bibliographic Information

Other Title
  • マルコフ過程によるCFRP積層板トランスバースクラック飽和挙動の確率論的逆解析

Abstract

<p>It is well known that the transverse cracks (TCs) generated in CFRP laminates are saturated, and the number of saturated TCs varies widely. This paper presents a stochastic approach for the TC saturation characteristics cumulated in a CFRP cross-ply laminate under tensile loading. An inverse analysis mechanics model was proposed on the basis of Markov process combined with a matrix cracking model which was derived on the basis of slow crack growth (SCG) concept in conjunction with the Weibull distribution. The analysis model is assumed that each discrete stage is assigned in the order of the TCs generation, and that it transits to two states i.e., continuously generated and saturated states from one state. The saturated TCs data was stochastically analyzed using the analysis model. The estimated TC saturation probability curves approached the experimentally obtained saturation TCs data with an increase in the number of TCs and ultimately agreed with them. The measured and estimated mean number of saturated TCs was in good agreement.</p>

Journal

References(18)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top