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
收藏
页码：43 / 48
页数：6
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