Academic Journal
ひずみによる動的降伏強度の簡便測定法
| العنوان: | ひずみによる動的降伏強度の簡便測定法 |
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| المؤلفون: | 立矢 宏, 茶谷 明義, 放生 明廣, Tachiya Hiroshi, Chatani Akiyoshi, Hojo Akihiro |
| بيانات النشر: | The Japan Society of Mechanical Engineers = 日本機械学会 |
| سنة النشر: | 1995 |
| المجموعة: | Kanazawa University Repository for Academic Resources (KURA) / 金沢大学学術情報リポジトリ |
| مصطلحات موضوعية: | Stress Waves, Material Testing, Impact Strength, Plasticity, Longitudinal Impact, Dynamic Yield Strength |
| الوصف: | 金沢大学高度モビリティ研究所 / 金沢大学理工研究域機械工学系 ; Generally, measurements of the stress-strain curve are required in order to determine the yield strength. However, it is difficult to measure dynamic stresses induced in materials due to the complicated propagation of the stress waves. In contrast to this, measuring strain data is relatively easy. When the materials are subjected to impact force, elastic waves propagate first. After the strain becomes larger than yield strain, plastic waves occur. Therefore the strain rate changes discontinuously at this point, although the strain increases smoothly. By measuring the strain waves induced in a test piece rod subjected to longitudinal impact force as a step waveform, the strain rate profiles are obtained based on numerical differentiation. For the previous reason, the dynamic yield point can be estimated by change of the strain rate. The dynamic yield stresses are obtained by multiplying those values by Young's modulus measured from the static compress or tensile tests. This paper confirmed the possibility of the present method based on numerical simulations and discussed practicality by measuring the dynamic yield strength of materials under various strain rates. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | Japanese |
| تدمد: | 0387-5008 |
| Relation: | https://www.jstage.jst.go.jp/browse/kikaia1979/-char/ja/; http://www.jsme.or.jp/; http://ci.nii.ac.jp/naid/110002372318; https://kanazawa-u.repo.nii.ac.jp/?action=repository_uri&item_id=8870; http://hdl.handle.net/2297/36739; 日本機械学會論文集 A編 = Transactions of the Japan Society of Mechanical Engineers Series A, 61(584), 842-848(1995-04-25); AN0018742X; https://kanazawa-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=8870&item_no=1&attribute_id=26&file_no=1 |
| الاتاحة: | http://hdl.handle.net/2297/36739 https://kanazawa-u.repo.nii.ac.jp/?action=repository_uri&item_id=8870 https://kanazawa-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=8870&item_no=1&attribute_id=26&file_no=1 |
| Rights: | Copyright © The Japan Society of Mechanical Engineers 日本機械学会 |
| رقم الانضمام: | edsbas.CEED22A9 |
| قاعدة البيانات: | BASE |
| تدمد: | 03875008 |
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