An absolute contribution sir, in the example for warpage, if you had shown how warpage was rectified on that curved surface, it would have been great for visually rectifying a problem with similar complexity. Thank U so much for presentation ❤️🙏
I assume this mesh quality is about 2D shell elements. 28:58 You mentioned that Tria elements are stiffer than Quard ones. What about 3D terta element? Do we need to avoid these tetra elements? Sometimes, I can say many times, complex geometry objects cannot be meshed with quad elements in 3D solid analysys.
Dear, 3D element qualities are mostly same as 2D element quality.. warpage, jacobian, aspect ratio, skew, minimum size etc. For 3D elements these properties need to be calculate on every face. If one face is fail due to any property it means whole 3D element is failed. Apart from these properties 3D element have few more..like volume skew, volume AR, tet collapse. Tetra elements not recommended until model is not much complex. Bcz 1. Stiffer behaviour than hexa 2. For same amount of volume/component more number of tetra elements required than hexa...that increase number of node and elements in system. Hence computational time increase. For complex models it always recommended to use second orde tetra to improve analysis accuracy, but computational time also increases dramatically.
sir,I am little bit confused that for 5188000 increments 1 sec is needed but for only 1000 increment 1.44 hr is needed. How these two time is differently run. How increase one time decrease the other computational time
Dear, Number of increment taken by Abaqus explicit also depends on total number of elements. Lets assume - You have only 100 element in model...so Abaqus explicit able to complete 10,000 number of increment in 10 sec. But on other hand if your model having 1000 element Abaqus Explicit able to complete only 1000 increment in 10 sec. In your case if only 1000 increment taken by Abaqus explicit in 1.44 hr... I'm sure you have lots of elements in your model...in lakhs.
@@simtech0598 I have been referring a book by Nitin Gokhale, 'Practical finite element analysis, it's on page number 100. Elements get transferred from global coordinate system to Local coordinate system(centroid). For faster calculations
Yes, Its true. All element level calculation (shape function) made with local coordinate system but to solve problem we need global stiffness/mass/damping of system..so they transfer to global coordinate system during solution procedure...and jacobian issue may arise.
Thankyou so much for this informative video! Could you please tell what is meant by Error 20216(STR+216) and Error 20018(STR+18).I got these errors while solving in LSDYNA and don't know how to deal with it.
Dear, Its completely dependents on size of object and what minimum element size you allowed. Surly your simulation will run. But how small the feature is which you want to capture is matter.
@@simtech0598 if few elements r not satisfying the criteria but still the failure of whole element on the model is showing zero percent can I continue or will I have to clear each and every elements
Stop adding background music long time ago. But cannot remove background music from existing videos. I believe without earphone the background music will be less disturbing.
Dear, You are watching old videos...I stopped adding background music long time ago, But cannot remove from existing videos. I suggest to listen without earphone.
