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。
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.
出处
《盐城工学院学报（自然科学版）》
CAS
2006年第2期48-50,共3页
Journal of Yancheng Institute of Technology:Natural Science Edition
关键词
应力偏张量
主应力
极坐标
polar coordinate
right - angle coordinate
main stress
main stress partial tensor
