When simulation results don't make sense, what checks do you perform? Besides the modeling aspects of loads and boundary conditions, mesh sizes, right formulations, etc., the most often overlooked cause of problems is the wrong assignment of materials and properties in a solver input deck. In the midst of running many simulations it is so easy to modify values that users forget that what they intended for a part is not what is being analyzed. Identifying the correct material values and assigning them is such a crucial step in your analysis that any mistake can compromise the results and design decisions you make based on simulation.