Fatigue investigations of autofrettaged steel cylinders based on neutron-diffraction measurements

被引：1
|
作者：
de Swardt, RR
Venter, AM
van der Watt, MW
机构：
[1] NECSA Ltd, ZA-0001 Pretoria, South Africa
[2] LIW Div Denel, ZA-7710 Pretoria, South Africa
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2002年 / 74卷 / Suppl 1期
关键词：
Autofrettaged steel cylinders - Cyclic internal pressurization fatigue - Plastic boundary;
D O I：
10.1007/s003390201903
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of cyclic internal pressurization fatigue experiments was conducted on partially autofrettaged cylinders with multiple internal radial elliptic shaped cracks covering a wide range of possible configurations. A theoretical model was developed to predict the theoretical fatigue life using as input data the actual measured position of the plastic boundary from neutron-diffraction measurements on the failed specimens, as well as a position calculated analytically from the autofrettage pressure. The theoretical fatigue-life predictions based on the neutron-diffraction results were found to give the best correlation with experimental fatigue results.
引用
收藏
页码：S1412 / S1414
页数：3
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