| 圆柱体（H／D＞1）镦粗时应力场计算的力学分块法 |
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| 引用本文： | 王连东,刘助柏.圆柱体（H／D＞1）镦粗时应力场计算的力学分块法[J].塑性工程学报,1994,1(3):20-28. |
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| 作者姓名： | 王连东 刘助柏 |
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| 作者单位： | 东北重型机械学院 |
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| 基金项目： | 国家自然科学基金,机械工业部教育司预研基金 |
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| 摘 要： | 在主应力法的基础上，本文提出了力学分块法，推导出圆柱体（Ｈ／Ｄ＞１）在普通平板间镦粗时应力场的计算公式，并具体计算和分析了高径比Ｈ／Ｄ—１．６３的镦粗体内部的应力场。其计算结果同物理模拟［１］相符，并进一步证明与发展了刚塑性力学模型的拉应力理论［２］。
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| 关 键 词： | 圆柱体，镦粗，应力场，力学分块法 |
MECHANICAL SLAB METHOD OF THE STRESS FIELD CALCULATION FOR A CYLINDER (H/D>1) BEING UPSET |
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| Wang Liandong, Liu Zhubai.MECHANICAL SLAB METHOD OF THE STRESS FIELD CALCULATION FOR A CYLINDER (H/D>1) BEING UPSET[J].Journal of Plasticity Engineering,1994,1(3):20-28. |
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| Authors: | Wang Liandong Liu Zhubai |
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| Affiliation: | Northeast Heavy Machinery Institute 161042 |
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| Abstract: | In this paper, the mechanical slab method is proposed based on the principal stress method, the calculation formulae of the stress field of a cylinder (H/D>1 ) being upset between common flat platens are dedued, and the stress field of an upset body with ratio of height to diameter H/D￣ 1. 63 is calculated and analysed. The calculation result is compared with the physical simulation1], and the tension stress theory of a rigid-plastic-mechanical model is further testified and developed. |
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| Keywords: | Cylinder Upsetting Stress field Mechanical slab method |
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