Hi
I am Sairam, doing a PhD in Civil Engineering at IIT Bombay. I am new to comsol multiphysics software. I will be using comsol software for research work. For this, I started learning the basics of modelling and analysis. The following are the dimensions and material models used in the analysis.
Concrete Cube: 150x150x150 (mm)
Material: Ottosen Model
Damage: Mazars Damage Model
Meshing: Mapped Meshing
Analysis: Displacement controlled analysis, the displacement was on the top of the cube in the negative Z axis.
After I performed the analysis, I am getting the below error message. I am also getting warning from parametric solver.
Error: Failed to find a solution for all parameters,even when using the minimum parameter step. Maximum number of Newton iterations reached.
Returned solution is not converged. Not all parameter steps returned.
Warning: Parametric Solver does not support varying parameters in the solver sequence. Use Parametric Sweep for this.
I tried so many times but I was not able to identify what the problem was. Please help me. In the result, I want to plot load vs deflection. I want to capture the load vs deflection behaviour till failure.
Note: I am attaching the comsol file.
Thank you
Sairam
9676064315
The simulation is getting failed at the first parameter step (i.e for the first load increment). I suggest you should check the boundary condition of the beam. It should be pinned at one end, and supported by a roller at another end. Constraint the end faces according to it.
Dinesh
I have given same boundary conditions as mentioned in literature.
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