A Monte Carlo–shear lag simulation of tensile fracture behaviour of Bi2223 filament

The damage evolution in Bi2223 filaments and its influence on critical current was described by a Monte Carlo-shear lag simulation method. The experimentally observed zigzag crack propagation across aligned Bi2223 grains under tensile strain was effectively modelled by including transverse and longi...

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Bibliographic Details
Published inSuperconductor science & technology Vol. 18; no. 12; pp. S232 - S240
Main Authors Ochiai, S, Ishida, T, Doko, D, Morishita, K, Okuda, H, Oh, S S, Ha, D W, Hojo, M, Tanaka, M, Sugano, M, Osamura, K
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.12.2005
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Summary:The damage evolution in Bi2223 filaments and its influence on critical current was described by a Monte Carlo-shear lag simulation method. The experimentally observed zigzag crack propagation across aligned Bi2223 grains under tensile strain was effectively modelled by including transverse and longitudinal failure modes for individual grains. From the simulated stress-strain curve, the survival parameter (slope of the stress-strain curve normalized with respect to the original Young's modulus) was estimated with increasing applied strain. With this parameter combined with the strain sensitivity of the critical current, the measured change of critical current of the composite tape with applied strain could be described well.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0953-2048
1361-6668
DOI:10.1088/0953-2048/18/12/004