Stress intensity factors KI and KII for cracks at the tips of parallel pore channels with starlike cross-sections

被引：0

作者：

V. G. Borovik

机构：

[1] Frantsevich Institute for Problems of Materials Science,

[2] National Academy of Sciences of Ukraine,undefined

来源：

Powder Metallurgy and Metal Ceramics | 2011年 / 50卷

关键词：

unidirectional fibers; pore channel; Y-shaped crack; starlike crack; stress intensity factor;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Mode I and mode II stress intensity factors (SIFs) are determined for a material with parallel pore channels of Y-shaped cross-section with centers at nodes of a regular hexagonal grid and arms aligned with the sides of hexagons. Calculations are performed for a unit cell that includes halves of two adjacent pore channels with an arbitrary length ratio of the arms. The finite-element method is used. It is shown that the SIFs for an equal-arm Y-shaped pore channel depend on the fiber cross-sectional radius of curvature. The range of lengths of periodic equal-arm starlike cracks in which they can be regarded as noninteracting is identified.

引用

共 50 条

[1] STRESS INTENSITY FACTORS KI AND KII FOR CRACKS AT THE TIPS OF PARALLEL PORE CHANNELS WITH STARLIKE CROSS-SECTIONS
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[2] Stress Intensity Factors at the Intersection of a Crack and Pore Channels with Various Cross-Sections
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[4] Computation of stress intensity factors (KI, KII) and T-stress for cracks reinforced by composite patching
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[5] Instability of cracks initiation from a mixed-mode crack tip with iso-stress intensity factors KI and KII
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[8] RADIATION SHAPE FACTORS FOR CHANNELS WITH VARYING CROSS-SECTIONS
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[9] Stress intensity factors KI and KII of oblique through thickness cracks in a semi-infinite body under fretting fatigue conditions
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[10] STRESS INTENSITY FACTORS AT TIPS OF BRANCHED CRACKS UNDER VARIOUS LOADINGS
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