How does one employ Penalty Method in Finite Element Method?

More Sai Trinath's questions See All

How can I export a mesh generated in ABAQUS into MATLAB ?

Hello, I'm new to ABAQUS, can someone help in exporting a mesh from ABAQUS to MATLAB. I Need Triangle Coordinates and Nodal Coordinates information only. Any help is highly appreciated !!...

04 May 2018 7,147 3 View

I have to Change the Global Stiffness Matrix with the help of Mesh Data in Abaqus, and perform certain operations, How can i be able to do that ?

In Abaqus, i want to Modify Global Stiffness Matrix, using the Data From Mesh, and there by perform certain Operations on the Modified Global Stiffness Matrix. I have gone through the Option of...

08 September 2017 1,539 1 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

How to modify Johnson cook equation in ABAQUS?

I wanted to add an extra parameter to the existing Johnson cook equation in the ABAQUS simulation. How to add those extra parameters. Ref: A modified Johnson-Cook material model with strain...

28 February 2021 4,841 3 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View

How to compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

What is the best way to calculate the angles of twist for concrete columns subjected to torsional moment using finite element software?

In Finite element software like ANSYS , there is difficulty in obtaining direct results of twisting of concrete members because SOLID65 which is the unique element designed to represent concrete...

26 February 2021 3,806 2 View

Fictitious Boundary Meshing Method (FBM) in Commercial FEA software?

Is it possible to implement FBM in a commercial FEA software package, such as FEMLAB, COMSOL, or open source software like Moose?

22 February 2021 2,968 1 View

Is there a Constitutive model for concrete with Sea-Sand?

Hi I am running a simulation in Abaqus for a concrete beam. Its fine aggregate replaced with sea-sand. I was wondering if I could find studies that measured the ultimate strain of concrete made...

22 February 2021 6,409 2 View

Do you consider undergoing a structure literature review / Meta analysis and getting numerical findings sort of quantitative method?

I am looking for a classification of the research methods included in literature review papers or Meta analysis ones .

22 February 2021 1,131 4 View

Lena J-T Strömberg

Hi, I wrote some on arclength but did not find now. Here in an article and from a book

https://books.google.se/books?id=rWvefGICfO8C&pg=PA763&lpg=PA763&dq=arclength+klaus+jurgen+baathe&source=bl&ots=gFLHBNwsK2&sig=RiumFfTnhL-ZhnvIiLJ31xwTx6g&hl=no&sa=X&ved=0ahUKEwjtnM6o_eXUAhXhApoKHRGhCTMQ6AEIIDAB#v=onepage&q=arclength%20klaus%20jurgen%20baathe&f=false

Here, in Section 5.3, is another kind. You prescribe displacement in one dof, and calculate the equivalent body force, because that is input control, but not (lost the word 'iso-growing')

Thesis Nonlocal plasticity models applied to localisation and compa...

I thought it was e.g. arclength method to control input in nonlinear modeling, when the main control variable is not monoton. Or otherwise improve robustness.

Sai Trinath

Thanks For the help, i really appreciate it :) ...I have used different approach, which does not demand for Penalty Approach.

Hussam Ali Mohammed

Please check references below.. hope it will be helpful for you… Regards…

https://www.math.u-psud.fr/~maury/Files/FEpen.pdf