AES-ATEMA’ 2011International Conference on Advances and Trends in Engineering Materials and their Applications , 2011-08-01

Title : ( Determine of residual stresses around cold-worked hole based on measured residual strains )

Authors: Khalil Farhangdoost , Ehsan Pooladi Borj ,

Citation: BibTeX | EndNote

Abstract

Compressive residual stress due to cold working decreases tendency of mechanical parts to initiate and growing fatigue crack and increases fatigue life. So determining residual stress is one of the important subjects in the last decades. There are two categories for measuring residual stress as destructive and nondestructive tests. In this paper distribution of residual stress around a hole which cold worked by expansion due to interface of a shaft into the hole and then removing it, is determined by measuring residual strains. There is a good agreement between residual strain measurements and residual stress in which is a good characteristic feature of residual stress. Fourier series for relating measured strains to residual strains in each position, Hook\'s law in elastic region and power law in plastic region have been used for derive the residual stresses. This analytical technique is nondestructive and simple compared to other methods.

Keywords

, Residual stress, Cold working, cold-worked hole, residual strain, total strain theory, Henkey total strain theory, thick-walled cylinder, plasticity
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@inproceedings{paperid:1023742,
author = {Farhangdoost, Khalil and Pooladi Borj, Ehsan},
title = {Determine of residual stresses around cold-worked hole based on measured residual strains},
booktitle = {AES-ATEMA’ 2011International Conference on Advances and Trends in Engineering Materials and their Applications},
year = {2011},
location = {مونترال},
keywords = {Residual stress; Cold working; cold-worked hole; residual strain; total strain theory; Henkey total strain theory; thick-walled cylinder; plasticity},
}

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%0 Conference Proceedings
%T Determine of residual stresses around cold-worked hole based on measured residual strains
%A Farhangdoost, Khalil
%A Pooladi Borj, Ehsan
%J AES-ATEMA’ 2011International Conference on Advances and Trends in Engineering Materials and their Applications
%D 2011

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