摘要
以长 L的 K种材料组成的组合压杆，在 P力的作用下，第 i种材料的应力σ i为 P力与第 i种材料相当截面的面积比，当第 i种材料的应力σ i确定后，组合杆件其它材料的应力即σ i简单可求，即σ j=(Ej/ei)σ i.可免去超静定的计算过程 .相当截面法借助于位移可证明，同理可求各组合材料中剪切应力及弯曲应力的大小 .
As force P is acted on a combinatirial stem that is made of“ k'kinds material whose length is“ L' the stressσ i of“ i'material is“ P' to the equivalent section area ratio.The stressσ j of the other material will be calculated easily after we gotσ i.We can imunize from supperstatic fixed calculation problem.The correspondence section means can be proved by displacement.In this way, we can get the shearing stress and winding stress of all kinds of combinatorial material.
出处
《沈阳工业大学学报》
EI
CAS
2001年第2期157-158,161,共3页
Journal of Shenyang University of Technology
