Hi how can I find the formulas behind the output results in abaqus?? To be specific I want to know formulas which the software uses to give the reaction forces..
Hi, I can assume that the nodal stresses are approximated from the integration points' stresses. Then, knowing the area of the element faces (where you requested force) can be used to approximate the reaction force.
@@sohailhamza2812 I am not sure exactly which part of stress calculation you are interested in. I will explain a simple scenario: If you consider linear elastic material, and pulling a tensile specimen by 1N, FEM code approximate all nodal displacements in the model by finding the deformed shape (new nodal position due to load) that produces equal internal forces in the element (elastic) and external force. Knowing the original (undeformed) and deformed configurations of the nodes one can easily calculate the strains. As I said I am considering elastic material, the stresses now can be calculated using Hook's law. If you check basic FEM theory, the stresses are calculated in the integration points. It is then easy to find stress and other quantities in nodes, surfaces, lines etc. using isoparametric interpolation of the element formulation.
9:24 or you can use View Cut in Visualation and choose X plane to be cut.
Awesome video, alot of secrets
I was exactly looking for how to enlarge the legend!
please in my frame selector, I have 0 to the left and 20 to the right but your own is 0 to the left and 100 to the right any help?
Can you upload video on basic tensile test how to break 🙏🙏
how to show the frame selector
Hi. Can you please share the umat file for dog bone specimen ? thank you
Hi, please download the input file here: drive.google.com/file/d/1HHoV8U9ipJbdJWsweNFVrNlbTdX9hGtT/view
@@10Minuters thank you
Hi how can I find the formulas behind the output results in abaqus??
To be specific I want to know formulas which the software uses to give the reaction forces..
Hi, I can assume that the nodal stresses are approximated from the integration points' stresses. Then, knowing the area of the element faces (where you requested force) can be used to approximate the reaction force.
@@10Minuters ok. Then I need to know formulas for stress calculation!?
@@sohailhamza2812 I am not sure exactly which part of stress calculation you are interested in. I will explain a simple scenario: If you consider linear elastic material, and pulling a tensile specimen by 1N, FEM code approximate all nodal displacements in the model by finding the deformed shape (new nodal position due to load) that produces equal internal forces in the element (elastic) and external force. Knowing the original (undeformed) and deformed configurations of the nodes one can easily calculate the strains. As I said I am considering elastic material, the stresses now can be calculated using Hook's law. If you check basic FEM theory, the stresses are calculated in the integration points. It is then easy to find stress and other quantities in nodes, surfaces, lines etc. using isoparametric interpolation of the element formulation.
@@10Minuters thank you for such a clear explanation.