Nonlinear Analysis

In This article reviews linear and nonlinear analyzes and in the following, we examine a variety of common yield criteria for calculating stresses And we examine the different types of these criteria, considering the kind of materials of the elements that we intend to analyze, and examine the related relationships. It should be noted that linear methods were used over the years due to the non-expansion of computer systems for analysis , And now with the development of computer science and the ability to solve nonlinear complexities with various finite element software These methods have been upgraded and completed more and more day by day. Also, in this article, we describe the strengths and weaknesses of each of them briefly so that the researchers can rely on this work to identify and use criteria appropriate to their projects

کلیدواژه ها:

Yield criterion ، Nonlinear Analysis ، Elastic and Plastic ، Behavior Models