While the ease of setting up a problem using finite elements and getting a solution is the reason for its popularity, it is also the cause of its frequent misuse and distrust of the answers obtained. Usually you have to check your results with an experiment before your model is acceptable for use. The use of finite elements in structural analysis is in particular poorly managed. Engineers typically begin working with FEM having very little knowledge of numerical methods or knowledge of finite element behavior. There are no standards and guidelines for modeling and few managers who understand well enough to regulate modeling. It has led to mistrust of the method, its arrested development, and some very bad analysis being performed that is copied by others. Much aircraft structural design is analyzed using FEM. 