書誌事項
- タイトル別名
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- The mechanism of stable crack growth in FRP.
- FRP ノ アンテイ キレツ セイチョウ キコウ ニ カンスル ケンキュウ
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説明
In this paper, stable crack growth is examined in both experimental and analytical ways to establish a test method to evaluate the fracture toughness of FRP. The mechanism of stable crack growth is considered from observations of vicinity of the crack tip. There is always a damage zone in which debonding between the fibers and the matrix occurs ahead of the crack tip. Crack growth occurs by breaking the fibers at the crack tip. Stress analysis is carried out to find out how much stress is applied to the fibers in the damage zone. A line spring model is used to express the mechanical behavior of the fibers in the damage zone, and infinitesimal dislocation distribution theory is used in the numerical stress analysis. It is concluded that stable crack growth in a fracture toughness test of FRP is inherently different from that in metallic materials induced by plastic deformation near the crack tip ; that it results from the stress relaxation by debonding between the fibers and the matrix ; and that the stress intensity at the point of instability in the fracture toughness test is the material property.
収録刊行物
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- 日本機械学会論文集A編
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日本機械学会論文集A編 52 (482), 2351-2355, 1986
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001204479043712
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- NII論文ID
- 110002377083
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
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- NDL書誌ID
- 3100711
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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