Identification of Fracture Toughness for Discrete Damage Mechanics Analysis of Glass-Epoxy Laminates

被引：6

作者：

Barbero, E. J. ^{[1
]}

Cosso, F. A. ^{[1
]}

Martinez, X. ^{[2
]}

机构：

[1] W Virginia Univ, Morgantown, WV 26506 USA

[2] Tech Univ Catalonia UPC, Barcelona, Spain

来源：

APPLIED COMPOSITE MATERIALS | 2014年 / 21卷 / 04期

关键词：

Polymer-matrix composites (PMCs); Transverse cracking; Damage mechanics; Finite element analysis (FEA); Parameter identification; MATRIX CRACKING; TRANSVERSE CRACKING; COMPOSITE-MATERIALS; CONSTITUTIVE MODEL; DELAMINATION; FORMULATION; MESOMODEL; SPECIMEN;

D O I：

10.1007/s10443-013-9359-y

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A methodology for determination of the intralaminar fracture toughness is presented, based on fitting discrete damage mechanics (DDM) model predictions to available experimental data. DDM is constitutive model that, when incorporated into commercial finite element software via user material subroutines, is able to predict intralaminar transverse and shear damage initiation and evolution in terms of the fracture toughness of the composite. The applicability of the DDM model is studied by comparison to available experimental data for Glass-Epoxy laminates. Sensitivity of the DDM model to h- and p-refinement is studied. Also, the effect of in-situ correction of strength is highlighted.

引用

页码：633 / 650

页数：18

共 45 条

[1] On the validation of a damage mesomodel for laminated composites by means of open-hole tensile tests on quasi-isotropic laminates [J].