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Experimental investigations of the effect of thickness on fracture toughness of metallic foils

Kang, Yi Lan; Zhang, Zhi-Feng; Wang, Huai-Wen; Qin, Qing Hua


The effect of thickness on the fracture toughness JC of metallic foil was investigated experimentally. Double-edge cracked specimens, made of copper foils with thicknesses t ranging from 0.02 to 1 mm, were loaded in tension till fracture. The digital speckle correlation method (DSCM) was used to evaluate the strain fields around the crack tip, allowing determination of the J integral. The fracture toughness defined as the value of the J integral at cracking initiation was shown to first...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Materials Science and Engineering A
DOI: 10.1016/j.msea.2004.11.044


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