SCARE: A POSTPROCESSOR PROGRAM TO MSC/NASTRAN FOR RELIABILITY ANALYSIS OF STRUCTURAL CERAMIC COMPONENTS.

被引：0

作者：

Gyekenyesi, J.P. ^{[1
]}

机构：

[1] NASA, Lewis Research Cent,, Cleveland, OH, USA, NASA, Lewis Research Cent, Cleveland, OH, USA

来源：

Journal of Engineering for Gas Turbines and Power | 1986年 / 108卷 / 03期

关键词：

COMPUTER AIDED ANALYSIS - MATHEMATICAL TECHNIQUES - Least Squares Approximations - PROBABILITY;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A computer program is developed for calculating the statistical fast fracture reliability and failure probability of ceramic components. The program includes the two-parameter Weibull material fracture strength distribution model, using the principle of independent action for polyaxial stress states and Batdorf's shear-sensitive as well as shear-insensitive crack theories, all for volume distributed flaws in macroscopically isotropic solids. Both penny-shaped cracks and Griffith cracks are included in the Batedorf shear-sensitive crack response calculations, using Griffith's maximum tensile stress or critical coplanar strain energy release rate criteria to predict mixed mode fracture. Weibull material parameters can also be calculated from modulus of rupture bar tests, using the least-squares method with known specimen geometry and fracture data.

引用

页码：540 / 546