Investigation of Fracture Mechanisms of Aramid/Epoxy Composites and Damage Estimation by Means of SAM.
Bibliographic Information
- Other Title
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- アラミド繊維/エポキシ樹脂複合材料の破壊機構と超温波顕微鏡による損傷評価
- アラミド繊維/エポキシ樹脂複合材料の破壊機構と超音波顕微鏡による損傷評価
- アラミド センイ エポキシ ジュシ フクゴウ ザイリョウ ノ ハカイ キコウ
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Abstract
An investigation of the fracture mechanisms of (0/±45/90)2S aramid fiber/epoxy composies, i.e., Kevlar 49 and HM50 composites, has been carried out, and the delamination characteristics have been quantitatively measured by means of an acoustic microscope. Free-edge delamination occurs initially at -45°/90° and 90°/0° interfaces in static tensile tests, whereas it occurs initially at ±45° interfaces in fatigue tests. Under static tensile loading, resin cracking and interface debonding in the weakest 90° ply are followed by the lowering of the load-carrying capacity of 90° and 45° plies. The final fracture is caused through an increase in 0° ply stress. No difference in the fracture process betwen Kevlar 49 and HM50 composites is observed. Compliance changes in fatigue tests are divided into two stages : stage I where the compliance is almost constant, and stage II where the compliance grows with progression of stress cycles. In stage I, no 0° ply damage occurs, whilst 0° ply damage as well as 0°/45° and 90°/0° delaminations takes place in stage II.
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 58 (546), 206-211, 1992
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390282679395972224
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- NII Article ID
- 110002371028
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- NII Book ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
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- HANDLE
- 20.500.12099/24046
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- NDL BIB ID
- 3752132
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed