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Analysis of a crack approaching a circular hole in cross-ply laminates under biaxial loading

Title
Analysis of a crack approaching a circular hole in cross-ply laminates under biaxial loading
Authors
Cheong, SKKwon, ON
Ewha Authors
권오남
Issue Date
1998
Journal Title
KSME INTERNATIONAL JOURNAL
ISSN
1011-8861JCR Link
Citation
vol. 12, no. 1, pp. 41 - 49
Keywords
modified mapping-collocation methodapproaching crackcross-ply laminatesstress intensity factorbiaxial tensionanalytic functioncircular hole
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Indexed
SCIE WOS
Abstract
The problem of a crack approaching a circular hole in cross-ply laminates under uniaxial and biaxial loading is investigated in this paper. The effects of material orthotropy, geometry [R/d and a/d], and loading conditions on crack lip singularity are investigated. The stress intensity factors are obtained by the modified mapping collocation method. The present results for an isotropic infinite plate show good agreement with existing solutions. The results for cross-ply laminates show that the stress intensity factors strongly depend on material orthotropy, geometry, and loading condition. The stress intensity factors for cross-ply laminates exist between those for theta=0 degrees and those for theta=90 degrees in the whole range of crack length and decrease as the percentage of 0 degrees plies increases. In the range of small crack length the stress intensity factors for biaxial tension are higher than those for uniaxial tension. In the range of large crack length the stress intensity factors for uniaxial tension are higher than those for biaxial tension.
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사범대학 > 수학교육과 > Journal papers
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