Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34684
Title: An experimental study of shear damage using in-situ single shear test
Authors: Tang, CY 
Lee, TC
Rao, B
Chow, CL
Keywords: In-situ SEM
Shear damage
Microcrack
Microshear band
Issue Date: 2002
Publisher: SAGE Publications
Source: International journal of damage mechanics, 2002, v. 11, no. 4, p. 335-353 How to cite?
Journal: International journal of damage mechanics
Abstract: An experimental study has been performed to investigate the shear damage mechanism of aluminium alloy 2024T3 by an in-situ single shear test using scanning electron microscope (SEM). The observation of microstructural change and measurement of shear strain in mesoscale have been undertaken simultaneously. Hence, the shear damage mechanism and the shear stress–strain curve have been obtained. By measuring the deformed grid of a laser-marked sample, the shear strain distribution has also been found. On the basis of the experimental results, the relation between the shear damage evolution and the corresponding shear stress–strain state have also been obtained. It has been observed that two groups of microshear bands were formed in the shear process. When the shear stress is close to the shear strength of the alloy, slipping within the microshear bands occurs. The causes of macro-shear band formation and the interrelation and interaction among different types of microdefects are also discussed.
URI: http://hdl.handle.net/10397/34684
ISSN: 1056-7895 (print)
1530-7921 (online)
DOI: 10.1106/105678902027244
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