确定主方位象限的最简规则及其证明  

The simplest rule and verification to determine main position quadrant

作　　者：杨雪梅[1] 

机构地区：[1]唐山学院基础部,河北唐山063000

出　　处：《河北理工学院学报》2003年第3期111-114,共4页Journal of Hebei Institute of Technology

摘　　要：介绍了一种无须任何附加条件 ,也无须任何计算即可直观判别出平面应力状态下主方位象限的最简规则 ,并从纯数学角度出发对此规则进行了严格证明 。The simplest rule of visually distinguishing main position's quadrant for planar stress state that needs no additional conditions and calculations is introduced in this paper.The rule is strictly proved from the point of view of pure math view,whose application is given with an example.

关 键 词：平面应力状态 主方位象限 材料力学 判别规则 证明方法 

分 类 号：TB301[一般工业技术—材料科学与工程]