書誌事項
- タイトル別名
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- Effect of Rolling Direction on Bent Fatigue Crack Propagation Behavior in Copper Film : Based on Discontinuous Displacement along a Crack Obtained by Using Film Fatigue Testing under Mixed-Mode Condition
- ドウ マクザイ ノ クッセツ ヒロウ キレツデンパキョドウ ニ オヨボス アツエン ホウコウ ノ エイキョウ コンゴウ モード マク ヒロウ シケン ト キレツ ニ ソウ フレンゾク ヘンイ ブンプ ケイソク ニ モトズイテ
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抄録
Since film materials used in electronic devise are often loaded from various directions, the crack initiated in such devises seems to propagate to various directions with bending. Therefore, it is important to consider about the fatigue crack propagation behavior under mixed-mode conditions with the crack opening and the crack sliding displacement. It this study, by using a new fatigue testing method in which the film was bonded to the cyclic loaded base plate with the inclined ellipsoidal through hole from the loading axis, the fatigue crack propagation behavior was discussed under mixed-mode conditions for a thin copper film. From the FEM analysis, stress on the film was uniform and principal stress direction was inclined from the loading axis of the base plate. Mode I and mode II stress intensity factors at the bent fatigue crack tip were calculated by using a displacement extrapolation method. As a result, the bent fatigue crack was initiated from the precrack and the crack propagation direction was almost perpendicular to the principal axis for an annealed copper film. On the other hand, the bent crack inclined to the rolling direction for cold rolled copper film with crystal grains extended to the rolling direction.
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 76 (768), 1068-1075, 2010
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
- 1390282679455447424
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- NII論文ID
- 110007682105
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
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- NDL書誌ID
- 10815671
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可