Finite Element Analysis of a Stainless Steel Research Paper

Finite Element Analysis of a Stainless Steel - Research constitution ExampleTherefore, this report describes the numerical analysis, conducted using the commercially available finite ingredient solver, ANSYS, and then recommendations be provided as to whether testing or redesign should be the next step.The finite element method (FEM) is a numerical procedure used for finding approximate solutions of mathematical functionial derivative instrument equations (PDE). A partial differential equation is a differential equation containing derivatives involving two or more independent variables. In applied science science, many phenomena are described by partial differential equations, such as displacement or temperature as a function of time and space. Problems involving PDEs are usually too complicated to be work by classical analytical methods. Solving PDEs with the method of finite elements is possible today due to quick solving capabilities of computers. Finite element analysis (FEA), originally used to solve stress analysis problems, is an progression which is used today in many branches of engineering including heat transfer and fluid flow.The material of the part is 2.5 mm stainless steel plate with a Youngs modulus of elasticity of 206 GN/m2, a Poisons ratio of 0.3, and a bear strength of 580 MN/m2. It is assumed that the material has linear elastic properties and is both homogeneous and isotropic (although in reality this is not exactly true for cold-rolled sheets where grain orientation may vary). In addition, it was assumed that no discontinuities or residual stresses are originally present in the material due to manufacturing processes such as forging, rolling and welding. The thickness of the part is assumed constant and is believed to be small enough compared to its width such that shell elements can be used for adequate accuracy in modelling. Figure 1 shows the rumple modelled in ANSYS. The part is symmetric in two directions and has been se parated in the model for simplification. Figure 2 shows the original drawing of the buckle and its symmetry. It is assumed that the geometry of the part is adequately represented by the finite element model developed. Displacements are expected to be relatively small such that a linear estimate will be valid. Figure 1Figure 2The solution of a finite element analysis is only so good as the quality of the shut away. The smaller the element size, the better the mesh should represent the geometry of the part. For this analysis, two mesh sizes were used a smaller one where the highest stress concentrations were expected, and a bigger one throughout the remainder of the model. The curve sections of the two slots were expected to receive the greatest stresses and were thus move with a value of 0.25, while the remained of the buckle was modelled with a 0.51 mesh size. The element type used was the PLANE82, which is a 2D structural solid element with eight nodes. Eight-noded elements are more accurate for modelling curved boundaries. The PLANE 82 shell element type also allowed for a thickness value in its input properties thus facilitating a 2D problem. In terms of boundary conditions, it was assumed t