PROBABILISTIC FRACTURE-MECHANICS APPLIED TO HIGH-TEMPERATURE RELIABILITY

被引：5
|
作者：
RIESCHOPPERMANN, H
BRUCKNERFOIT, A
机构：
[1] Institut für Zuverlässigkeit und Schadenskunde im Maschinenbau, Universität Karlsruhe, 7500 Karlsruhe
来源：
NUCLEAR ENGINEERING AND DESIGN | 1991年 / 128卷 / 02期
关键词：
D O I：
10.1016/0029-5493(91)90100-V
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
An example is used to demonstrate the applicability of Probabilistic Fracture Mechanics (PFM) methods in high temperature reliability assessment. The failure probability of a pipe under pure bending at a temperature of 973 K is calculated using both Monte Carlo simulation and the First Order Reliability Method. The advantages and the accuracy of approximative methods for calculating failure probabilities are demonstrated. Additionally, probabilistic and deterministic methods for reliability assessment are compared with each other. It is shown that a deterministic reliability assessment becomes inadequate in cases where the failure probability is determined by equally significant contributions of several random variables.
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页码：193 / 200
页数：8
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