Dear forum members,
I am currently working on developing finite element analysis (FEA) code in MATLAB, where I’m utilizing quadratic tetrahedral elements. For this purpose, I have exported the necessary values and matrices from ANSYS. After calculating the strain for each element, I proceeded to average the values for overlapping nodes at the element level. This approach seems to work well for the corner nodes of each element; however, I encounter inconsistencies when it comes to middle points. In some cases, even when the nodes are not duplicated, the values vary.
Could anyone provide insight into why such discrepancies may occur? Your expertise and advice would be greatly appreciated as I navigate through this issue.
Thank you for your time and assistance.Dear forum members,
I am currently working on developing finite element analysis (FEA) code in MATLAB, where I’m utilizing quadratic tetrahedral elements. For this purpose, I have exported the necessary values and matrices from ANSYS. After calculating the strain for each element, I proceeded to average the values for overlapping nodes at the element level. This approach seems to work well for the corner nodes of each element; however, I encounter inconsistencies when it comes to middle points. In some cases, even when the nodes are not duplicated, the values vary.
Could anyone provide insight into why such discrepancies may occur? Your expertise and advice would be greatly appreciated as I navigate through this issue.
Thank you for your time and assistance. Dear forum members,
I am currently working on developing finite element analysis (FEA) code in MATLAB, where I’m utilizing quadratic tetrahedral elements. For this purpose, I have exported the necessary values and matrices from ANSYS. After calculating the strain for each element, I proceeded to average the values for overlapping nodes at the element level. This approach seems to work well for the corner nodes of each element; however, I encounter inconsistencies when it comes to middle points. In some cases, even when the nodes are not duplicated, the values vary.
Could anyone provide insight into why such discrepancies may occur? Your expertise and advice would be greatly appreciated as I navigate through this issue.
Thank you for your time and assistance. fea, finiteelementmethod, strain, element MATLAB Answers — New Questions

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