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| 极坐标系下应力偏张量主值和主应力的表达式 |
| Expression of main stress and main stress partial tensor in polar coordinate |
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| DOI：10.3969/j.issn.1671-5322.2006.02.014 |
| 中文关键词: 应力偏张量 主应力 极坐标 |
| 英文关键词: polar coordinate right-angle coordinate main stress main stress partial tensor |
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| 中文摘要: |
| 通过极坐标与直角坐标的关系,用不同于塑性力学教材的另一种方法推导得出应力偏张量主值和主应力在极坐标下的表达式,并与塑性力学教材给出的公式进行比较,对在极坐标系下的解题提供简化过程,为理解结构的某些力学性质奠定理论基础. |
| 英文摘要: |
| Based on the relation of polar coordinate and right-angle coordinate,a new method is proposed to induce the expression of the main stress and the main stress partial tensor in polar coordinate.The induced expression is compared with the one from the plastic mechanics teaching materials,which can help us resolve the problems in the polar coordinate simply and understand the characters of some mechanics significations. |
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