Mixed Mode Delamination Creep Crack Growth of Unidirectionally Reinforced AS4/PEEK Laminate at Elevated Temperature.
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- UEMATSU Yoshihiko
- Dept. of Mech. Eng. and Sys., Osaka Univ.
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- SUGETA Atsushi
- Dept. of Mech. Eng. and Sys., Osaka Univ.
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- EGAWA Kohji
- Honda Motor Co. Ltd.
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- JONO Masahiro
- Dept. of Mech. Eng. and Sys., Osaka Univ.
Bibliographic Information
- Other Title
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- 一方向強化AS4/PEEK積層板の高温下における混合モードクリープ層間はく離き裂進展
- イチ ホウコウ キョウカ AS4 PEEK セキソウバン ノ コウオン カ ニ オケル コンゴウ モードクリープソウ カン ハクリ キレツ シンテン
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Description
Mixed mode I+II delamination crack growth tests at elevated temperature (473K) were carried out on unidirectionally carbon fiber reinforced thermoplastics (CFRTP) under static creep condition. Asymmetric end loaded split (AELS) specimens were used in order to investigate the effect of mixed mode ratio, GI/GII, on crack growth. The creep crack growth rate, da/dt, became higher in terms of mode I component of total energy release rate, GI, as GI/GII decreased. This implies that the crack propagation rate was accelerated by mode II component, GII. The measurement of the load point displacement rates due to mode I or mode II component of total load revealed that the creep deformation at the crack tip by mode II component was larger than that by mode I component and the size of creep deformation area depended on GI/GII. It is considered that the creep deformation by mode I component, which was perpendicular to carbon fibers, was constrained strongly by fibers, while the creep deformation by mode II expanded along carbon fibers. The crack growth rate under mixed mode loading was governed by the creep J integral, J, regardless of the mixed mode ratio. Fractographic observation showed that matrices were elongated along carbon fibers and fracture occurred at the interface between fibers and matrix.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 50 (11), 1255-1261, 2001
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390001205392664576
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- NII Article ID
- 110002292502
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- HANDLE
- 20.500.12099/24133
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- NDL BIB ID
- 5980108
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- Text Lang
- ja
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- Article Type
- journal article
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- Data Source
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- JaLC
- IRDB
- NDL Search
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed