Validation of Strain Invariant Failure Analysis in an open Hole off-Axis Specimen

被引：0

作者：

Jasso, Alvaro J. Mendoza ^{[1
]}

Goodsell, Johnathan E. ^{[2
]}

Pipes, R. Byron ^{[2
]}

Koslowski, Marisol ^{[1
]}

机构：

[1] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47906 USA

[2] Purdue Univ, Sch Aeronaut & Astronaut, W Lafayette, IN 47906 USA

来源：

JOM | 2011年 / 63卷 / 09期

基金：

美国国家科学基金会;

关键词：

DAMAGE EVOLUTION; COMPOSITE; SIMULATION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a model that incorporates the effect of uncertainty in the microstructure of composite systems in failure analysis. The method involves a recently developed micromechanical enhancement model to integrate the effect of variability in the fiber volume fraction. The model determines the range of failure angles in an open hole off-axis specimen and the uncertainty in the critical effective shear strain in the matrix phase at failure due to uncertainties in the fiber volume fraction. A Bayesian methodology is used for model validation and the Bayes factor metric is used to quantify the confidence in the model prediction.

引用

页码：43 / 48

页数：6

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