有限元分析在常规强度计算工作中的地位和作用

以往常规强诬计算方法的最大弊端在于构件的内力图是由认为施加在该构件上的外载荷确定的，而有限元素法克服了这个弊端，用构件上各计算站位（节点）的应力反推出了构件的内力图，从而大大提高了分析的精度和可靠性。本文在客观地评价有限元分析在常规强度各的地位和作用的基础上，为今后以有限元分析为基础而进行的常规强度计算工作指明了具体方法和途径的同时，又指出了二者的衔接关系。

THE FEM'S IMPORTANT POSITION AND ITS FUNCTION ON THE NORMAL STRENGTH ANALYSIS

The shortcoming of normal strength analysis method which FEM has no is that the inner force is abtained according to the artificial load on the component parts. However FEM gives the inner force of the component parts from the stress on nodes. Thus the analysis precision and reliability are great improved.The text introduces FEM' s important position and it' s function on the normal strength analysis, puts forword some future strength analysis methods on the basis of FEM. And also the relationship between FEM and the normal strength analysis is explained in the text.