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- 野島 武敏
- 京都大学工学部
書誌事項
- タイトル別名
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- Plastic instability of uniaxial tensile test in rate-sensitive materials and superplastic elongation.
- オウリョク ノ ヒズミ ソクド イゾン セイ オ コウリョシタ 1ジク ヒッパ
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説明
By applying Campbell's analytical method for the divergence condition of (∂ε/∂x) (ε; the true strain, x; Lagragian coordinate along pulling axis) to those of (∂e/∂x) and (∂A/∂x) (e; the nominal strain, A; the cross-sectional area), instability criteria in various tests were formulated for a rate sensitive material, and the correlation between the divergence condition of these imperfections and the load maximum condition was obtained in uniaxial tensile tests.<br>The growth of the imperfection in the cross sectional area after necking was formulated in a rate sensitive as well as work hardening (softening) material (σ∝εm[1+α*ε], σ; the true stress, m and α*; constants). The analytical results give that not only m-value but α*-value have a significant effect on the stable growth of the area imperfection. The present analysis seems to be very useful to discuss such large elongation after necking as in superplastic material.
収録刊行物
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- 材料
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材料 36 (401), 110-116, 1987
公益社団法人 日本材料学会
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詳細情報 詳細情報について
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- CRID
- 1390282680370254592
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- NII論文ID
- 110002297007
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- NII書誌ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 3126038
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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
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- 抄録ライセンスフラグ
- 使用不可