Different Statement - Different FEA Result. Element Formulation. Ansys Mechanical скачать в хорошем качестве

Different Statement - Different FEA Result. Element Formulation. Ansys Mechanical

Difference between linear and quadratic tetra elements in Ansys Mechanical (Workbench) 👉Details in description👇 ⚙ Description: In this video, the presenter discusses the impact of element types and the order of internal functions on finite element analysis results. The key points covered include: Mesh Comparison: starts by comparing different mesh sizes and element types for a given model. Mesh 1: Default mesh with an element size of 15 millimeters. Mesh 2: Fine mesh with an element size of 2 millimeters and quadratic elements (mid-side nodes). Mesh 3: Fine mesh with an element size of 2 millimeters and linear elements. Mesh 4: Coarse mesh with an element size of 15 millimeters. Deformation and Stress Results: Mesh 2 (quadratic elements) shows a deformation of 0.60 mm and equivalent stress of 140 MPa. Mesh 3 (linear elements) exhibits a deformation of 0.50 mm and a stress of 250 MPa. Mesh 4 (coarse mesh with quadratic elements) displays a deformation of 0.33 mm and a stress of 160 MPa. Node and Element Counts: Mesh 2 has approximately 29,000 nodes and 93,000 elements. Mesh 3 has around 18,000 nodes and 9,000 elements. Mesh 4 has almost 2,000 nodes and 500 elements. Element Type Considerations: Video highlights the importance of selecting an appropriate element type based on the ratio of nodes to elements. Quadratic elements (mid-side nodes) are preferable when the number of nodes is significantly higher than the number of elements. Linear elements may be suitable when the number of nodes is equal to or less than the number of elements. Stress Distribution and Averaging: Stress distributions are compared between mesh 2 (quadratic elements) and mesh 3 (linear elements). Averaging is discussed, emphasizing the differences in stress distribution based on the type of elements used. Effect of Element Order on Stiffness: The use of linear elements increases stiffness and changes stress distribution. Linear elements result in constant stress and stiffness behavior, which may lead to less physically accurate results. Recommendations: check the mesh carefully and considering the trade-offs between linear and quadratic elements. Linear elements with linear material behavior can yield accurate results in certain cases. Conclusion: The video concludes with a reminder to check the mesh, use appropriate element types, and be aware of the impact on stiffness and stress distribution. Key Takeaways: The choice between linear and quadratic elements depends on the number of nodes relative to the number of elements. Quadratic elements with mid-side nodes are preferred when the number of nodes is significantly higher. Linear elements may be suitable when the number of nodes is equal to or less than the number of elements. Linear elements result in constant stress and increased stiffness. Careful mesh inspection is crucial for obtaining accurate and physically meaningful results. Conclusion: This video provides valuable insights into the considerations related to choosing element types and the impact on finite element analysis results. Video have explanation of different mesh scenarios, stress distributions, and the influence of element order enhances understanding for engineers and analysts working with finite element simulations. The emphasis on careful mesh inspection and considerations for linear and quadratic elements contributes to improved decision-making in the simulation process. The license was provided by the ANSYS distributor in Ukraine, SoftEngineering Group LLC https://www.ansys.soften.com.ua/ 🌐 FEArytales Links Support Project: https://www.buymeacoffee.com/fearytales Discord: https://bit.ly/Fea-Dis youtube SAPRobasni:    / @saprobasni   Site: http://www.saprobasni.in.ua/en **** 🍵 Donation: https://www.buymeacoffee.com/fearytales https://www.paypal.com/donate/?hosted...