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Questions related from Adnan Shahriar
As far my understanding, formulation of custom elements is needed. For example, Spectral elements method requires very high order element. My question is, do people do this by hand or use any...
22 July 2021 1,407 6 View
Hi, The lamb wave on solid has 2 modes Extensional (S0) mode and Flexural (A0) mode. I have found a paper that has closed form solution for the Flexure mode of a Plate subjected to point impact...
11 June 2021 3,638 0 View
The attached Joint.png showed and example case of a joint (2 continuum members are connected). There are 3 characteristics of this, 1. There is a Gap: Cause small amount of rigid body rotation and...
08 December 2020 6,768 3 View
Hi, Commercial softwares generally use standard element for FEM. For example Abaqus library has max 20 node 3D brick element. But if anyone wants to use like 4th order element or Spectral element,...
18 October 2020 335 3 View
I have been working on 3D FEM in Matlab. Done different verifications tests and have good match with Abaqus and analytical results for some cases, but for a 1/8 sphere, I am facing this issue....
19 September 2020 7,855 4 View
Hi, I want to model Perfectly Brittle case! Where material fails after Yield strength. Basically removing the stiffness from the gauss point that face Stress>Yield Strength. I have 2 questions, 1....
11 June 2020 8,289 5 View
In my undergrad, cause of Lift is generally explained using Bernoulli's equation. I knew that something is not right! Its like getting Lift for Free! In bernoulli's principle, Energy is conserved...
23 May 2020 4,308 16 View
Hi, . I need to map data (scalar, vector, tensor) from a FDM grid to a FEM mesh. The girds or mesh are different from each other and the grid do not necessarily be equal spacing like the image...
07 May 2020 8,678 12 View
Hi, Do people use uncommon serendipity elements (Incomplete polynomial and different continuity for different axis)? For example, the elements in the picture. Thanks.
03 March 2020 7,623 3 View
Hi, I have been developing In-house code to solve 3D Structural dynamics equation using Finite Element Method. I have used both Brick and Wedge elements (Linear). Up to now, I have solved Static...
14 February 2020 477 17 View
