書誌事項
- タイトル別名
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- Fracture Prediction of Mild Steel Sheet and High-Strength Steel Sheet Subjected to Draw-Bending Using Forming Limit Stress Criterion
- セイケイ ゲンカイ オウリョク オ モチイタ ナンコウバン オヨビ コウキョウド コウバン ノ マゲ マゲ モドシ ワレ ヨソク
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抄録
<p>A fracture criterion for sheet metals subjected to draw-bending is investigated using the concept of the forming limit stress criterion. An experimental apparatus that is capable of draw-bending sheet specimens with forming speeds （approximately 100 mm・s-1 ） comparable to those of real press forming machines is designed and built. The test materials are an ultralow-carbon steel sheet and a 590MPa high-strength steel sheet. Specimens undergo bending-unbending under tension when passing over a die profile. The magnitudes of true stress σ DB at which the stretch-drawn specimens fractured are precisely determined from the measured data of the drawing force and the cross-sectional area of the specimen after fracture. Moreover, multiaxial tube expansion tests are performed to measure the forming limit stresses σPT of the test materials under plane-strain tension. It is found that σDB is larger than σPT by 6-18%. Therefore, it is concluded that the forming limit stress criterion is effective for the fracture prediction in draw-bending.</p>
収録刊行物
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- 塑性と加工
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塑性と加工 57 (670), 1055-1061, 2016
一般社団法人 日本塑性加工学会
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詳細情報 詳細情報について
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- CRID
- 1390001206499136256
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- NII論文ID
- 130005284350
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- NII書誌ID
- AN00135062
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- ISSN
- 18820166
- 00381586
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- NDL書誌ID
- 027756576
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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