Residual stress measurements on a metal matrix composite using the contour method with brittle fracture

被引：6

作者：

de Oliveira, Jeferson Araujo ^{[1
]}

Fitzpatrick, Michael Edward ^{[1
]}

Kowal, Jan ^{[1
]}

机构：

[1] Open Univ, Milton Keynes MK7 6AA, Bucks, England

来源：

RESIDUAL STRESSES IX | 2014年 / 996卷

关键词：

Brittle fracture surface method; fatigue crack; contour method; neutron diffraction; DIFFRACTION MEASUREMENTS; MISMATCH;

D O I：

10.4028/www.scientific.net/AMR.996.349

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this work we evaluate the application of the contour method to fatigue and fracture surfaces. Residual stress measurements were made on quenched and aged AA2124-SiCp composite using neutron diffraction, the contour method with wire EDM, and the contour method on a fatigue crack surface including brittle failure. The contour method successfully measured residual stresses from a wire electro-discharge cut surface, but the fracture method results suggest that residual stress information is lost due to plasticity during fatigue crack growth.

引用

页码：349 / 354

页数：6

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