How can I develope a matlab code for generation mesh in spectral finite element method?

More Majid Nadi's questions See All

Is it possible to export mesh from abaqus for using in Ansys Fluent?

Hi everyone, I want to mesh a part in Abaqus for further use in ANSYS Fluent because this way, it is much easier and faster to get a high-quality mesh. Is it even possible to generate a file...

15 January 2021 5,665 3 View

What are the (extrinsic) factors that influence the citation rate of a research article?

Dear RG members, Excluding the (intrinsic) factors such as quality and content of an article, what are the extrinsic factors/predicors that influence the citation rate of a research article? Is...

07 January 2021 3,410 3 View

Natural frequency extraction with ABAQUS?

I have modeled the RC beam with simply supported BC and I have got the frequency value for the case of the beam, but I have 150 modes for each analysis and I have to see them one by one to find...

05 January 2021 8,626 3 View

How high is the saturation electric field of P-E loop in Relaxor Ferroelectrics?

I have prepared a relaxor ferroelectric (KNN - BZZ solid solution) bulk sample. During P - E loop measurements, we experienced saturation electric field of about 100 kV/cm before dielectric break....

29 December 2020 9,080 3 View

What is the best way to simulate the fractional controllers?

What software do you prefer?

29 December 2020 889 3 View

What is New Next Generation Attenuation Relationships (NNGAR) and how are they different from other attenuation relationships?

Dear researchers The provisions of ASCE 7-10 states that New Next Generation Attenuation Relationships (NNGAR) has been used in the process of Probabilistic Seismic Hazard Analysis (PSHA) to...

15 November 2020 1,132 4 View

Stiffness changes of the structures due to modeling P-Delta effects in Sap2000 are more significant than OpenSees. which is more accurate?

Dear researchers The modeling of P-Delta for the structural elements (specially columns) reduce the stiffness of the structure and consequently increase the period of vibration. Now, these...

24 October 2020 7,255 5 View

Why 256x256 medical image gives me 256x256x3 in matlab?

I need a 256x256 pixel image to use it in my project. I downloaded images from the internet, but when I read the image, it stored in a 256x256x3 variable (color image format PET images). the NSCT...

11 October 2020 686 13 View

What are your suggested topics for future research?

Hello to all professors and researchers, What is your suggested topic for conducting an academic-operational thesis in one of the most up-to-date and efficient fields? Please express your proposal...

07 October 2020 395 56 View

What has been the positive effects of Covid 19 virus on the world energy demand from your point of view?

Hi every one, The power consumption of servers, computers, and Internet networks may have increased due to the increased use of virtual platform-based systems. The transportation system...

05 October 2020 9,615 5 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 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

Could anyone tell me what is the range of submillimeter wave?

There is confusion regarding the submillimeter-wave range. Many papers specify its range from 300GHz but some also consider its range from 100GHz. If I design an antenna on 122ghz what would I...

01 March 2021 516 7 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 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

Complex wave form in ANSYS?

Is there a way to input wave speed in a complex form on ANSYS? The wave speed I need to assign a material is 325(1+0.11i) however I have been unable to do this thus far. Failing that, is there...

27 February 2021 5,969 1 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

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

Romik Khajehtourian

Hi Majid, what is your basis function?

Nhlamulo Vincent Chauke

Hi there, sometimes should trust the tutoring from the youtube about the problem of the MATLAB, it is basically helpful. However, when I was doing the simulation of my design for the research that I am doing some of the problems that I was facing, I got tutorials from the youtube in order to continue with my simulation.e Therefore, when you open your Autodesk Inventor try to go to the environment and under stress analysis you will see the meshes and try to check if it gonna work.@Majid

Majid Nadi

Romik Khajehtourian .

Hellow.I use Lobatto Polynomials for function.