TITLE

Fracture Strains, Damage Mechanisms and Anisotropy in a Magnesium Alloy Across a Range of Stress Triaxialities

AUTHOR(S)
Kondori, B.; Benzerga, A.
PUB. DATE
March 2014
SOURCE
Experimental Mechanics;Mar2014, Vol. 54 Issue 3, p493
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the effect of stress-state triaxiality on damage accumulation leading to fracture at ambient temperature in magnesium alloy AZ31. We find that the strain to failure is weakly sensitive to triaxiality for the conditions investigated, at variance with the behavior of most alloy systems. Using plastic anisotropy measurements, post-mortem fractography and transverse cross-sectioning of specimens at incipient cracking, we discuss the contributions of plastic anisotropy, shear failure and coalescence-controlled cracking to limiting the net effect of stress triaxiality.
ACCESSION #
94763105

 

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