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What Is Finite Element Analysis Update Your BrowserFor the best experience, update your browser version or try Chrome or Firefox.Finite element analysis shows whether a product will break, wear out, or work the way it was designed.It is called analysis, but in the product development process, it is used to predict what is going to happen when the product is used.
Mathematical equations help predict the behavior of each element. A computer then adds up all the individual behaviors to predict the behavior of the actual object. From mechanical stress, vibration, and motion to computational fluid dynamics, plastic injection molding, and multiphysics, finite element analysis and simulation software from Autodesk provides a fast, accurate, and innovative approach to solving your most challenging design problems. What Is Finite Element Analysis Full Version Software ThatDownload the same, full version software that more than 9 million designers, engineers, and digital artists are using, including Autodesk Inventor Professional, Autodesk CFD, Autodesk Moldflow Advisor Ultimate, and Autodesk Robot Structural Analysis Professional software. This can be very helpful for materials such as concrete or masonry which typically crack immediately upon experience tensile stress. Optimizing a design for weight and cost while maintaining performance. Limiting the number of expensive prototypes needed prior to reaching a final product. Analyze why a design failed performance testing to allow for designing a solution Analyze and optimize complex geometries, composites, interactions, and loading scenarios that would otherwise require a guess test and revise approach to design. Without a strong understanding of how each input affects the computational model and the physics behind a phenomenon, FEA can provide a inaccurate results that hinder more than help. Prior to accepting FEA results an engineer should verify and validate the results using engineering judgement, and comparing to hand calculations and experimental data. Instead, engineers use their judgment to define boundary conditions that best approximates a loading scenario in the simplest way possible. In other terms, constraints constrain a model either physically or thermally at defined nodes in the defined axis and rotation. Depending upon the FEA software package constraint names will vary, however, they generally consist of the following or similar. Depending upon the FEA software package load names will vary, however, they generally consist of the following or similar. When the simulation is ran the results are determined only at the given nodes in order to simplify the problem to a finite number of results. Interpolation is then used to estimate the results between nodes. However, in order to generate an accurate result and not require excessive computational time, you will want to go back and define local mesh rules. For instance, locations where stress concentrations are likely to occur, such as a bolt hole, or extreme edge of a part in bending you, will want to increase the mesh density by decreasing the element size manually. For instance, if you have a simply supported beam (pin-frictionless) with all non-transient loads (dont change with time) and minimal deformation then you want to apply a linear static analysis. However, if you take the same beam instead of having it be simply supported you make it cantilevered (fixed-free) and apply the same loads but now have significant deformation, then you will want to apply a nonlinear static analysis. As a structure deforms with load the moment changes which therefore requires running multiple iterations prior to converging to a solution. Transient analysis includes anything from impact loads to cyclical loading where work hardening or plastic deformation can occur which changes a structures response to loading. Once a solution is found at each node, FEM then interpolates along elements to approximate the result. In order to allow for quadratic interpolation, a 3rd node is placed on each element at the center. This is critical as most physical governing equations, which FEM is approximating while interpolating, are not linear and are instead quadratic. If you compare these results to the materials yield strength you can determine whether the section is within elastic or plastic deformation aka if it has yielded. Should the material being used undergo strain hardening after yielding and if a significant portion of the model is yielded then you will want to run a nonlinear analysis instead of a linear analysis.
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