Sandipan Baruah

6 Questions 15 Answers 0 Followers

Questions related from Sandipan Baruah

Why is MATLAB computation using parallel cluster on an HPC slower than my local computer?

I am trying to run a non-linear finite element MATLAB code whose basic structure is as shown below. It has an outer for-loop and inside it, there are two parfor loops. for i = 1 :...

21 March 2023 698 5 View

How does the 'crack-tip-containing-element' and 'split-element' get correctly detected by level-set in XFEM?

The attached photograph shows a crack (red colour) passing through element-a & element-b in XFEM mesh discretization. 'phi' indicates the level set (signed distance function) from the...

25 February 2022 7,625 4 View

Why does full Newton Raphson method not converge during unloading in thermo-elasto-plastic FE simulation?

I am simulating arc welding where, my initially I perform a non-linear transient thermal analysis and then I do a non-linear elasto-plastic analysis under thermal loads. During thermal analysis,...

18 September 2021 1,080 7 View

How to properly combine mechanical element birth with stresses before thermal melting in welding simulation?

I have a specimen which is arc welded in a single pass. For simulation, I use a moving heat source and get the temperature vs time distribution. I have used quiet elements technique for the filler...

17 September 2021 4,459 7 View

How to perform stress return mapping for thermo-elastic-plastic behaviour?

I have seen the radial return mapping algorithm for general elasto-plastic behaviour. However, for THERMO-ELASTIC-PLASTIC behaviour, the yield stress changes with temperature. Hence the general...

25 August 2021 3,581 0 View

How to use Newton Raphson method along with backward Euler for solving transient heat conduction?

I am trying to solve the transient heat conduction problem using Newton raphson method and backward Euler time integration. Please help me know how to use them together to solve non-linear...

11 April 2021 6,490 3 View