Jacobian matrix of coupled displacement temperature

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Please can I request the change in stress (∆σ) in Abaqus analysis via Umat subroutine ?

Actually, I am wondering if I can request the (∆σ)change of stressfor all integration points in Abaqus analysis through Umat ? As I can request stresses and strains and change in strains as...

01 February 2016 2,696 4 View

How can I change the tolerance of Abaqus ?

Dear Researcher, I am wondering if there is a way to change the tolerance of Abaqus . Is that possible? Best regards, Ali

10 November 2015 7,059 4 View

How can I get the number of iteration from Umat written in A text file?

Dear all, I am writing the Abaqus' output such as stress and strain in a text file. I need to use these as training data. However, the results are repeated and given different set of data because...

09 October 2015 9,071 3 View

How can I get the result of Abaqus continuously ?

Dear All, Please I am looking forward to getting the output of an abaqus analysis in a continuous way. I mean I run the input file from Matlab and divide the load for some parts and at each load I...

05 June 2015 2,727 0 View

How can I write Abaqus 's results to a text file via an Umat subroutine ?

Dear all, Actually, I am wondering how can I write specific data to a text file via Umat as. I need this data for further purposes? Many thanks for your help

04 May 2015 5,637 10 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

How to get moment output in Abaqus Standart?

I have input a moment load in module load Abaqus, i put my moment load on the node surface (using reference point). I have define moment in history output and make a set for moment too. But the...

08 August 2024 4,831 4 View

Is it true that $\det(V(A))$ may be only $\pm 1$, depending on $n$, for the last symmetric tridiagonal matrix $A$?

One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...

08 August 2024 6,690 1 View

How to fix errors in my heat transfer steel structure with reinforced concrete slab model Abaqus?

I have modelled a steel structure using beam elements in Abaqus and attached to this structure reinforced concrete slab. The analysis that I am making is heat transfer of the structure. The...

07 August 2024 1,028 0 View

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

I am working on Abaqus/Explicit(Quasistatic ) for the deformation of the auxetic structure model. Please explain how the plastic input value should be considered from the true stress-strain curve...

05 August 2024 454 3 View

Usage of internal standards in LC-MS/MS analysis?

Have you ever seen a LC-MS/MS method uses both internal standards and external standards (in matrix matching purpose) but the concentrations of internal standards are outside the calibration curve...

05 August 2024 3,084 6 View

Request a single Lecture notes for math as detailed as this that I can find in one place?

- The Existence/Uniqueness of Solutions to Higher Order Linear Differential Equations - Higher Order Homogenous Differential Equations - Wronskian Determinants of $n$ Functions - Wronskian...

03 August 2024 2,366 0 View

Tissue homogenization in mouse with FastPrep-24™ 5G - is the D matrix system useful?

I need to lyse and homogenise mouse tissues. So far I have experimented with liver and lung tissue, using matrix D. The liver was completely lysed with 6 repetitions of the standard program, but...

31 July 2024 9,186 0 View

Is it true that science is leaving the era of mathematics and entering the era of matrix mechanics?

We assume this to be true. Science leaves the era of mathematics and enters the era of matrix mechanics and the turning point is the discovery of numerical statistical theory called Cairo...

31 July 2024 3,900 2 View

Is the mentioned CV graph a valid one as this graph have only one peak prominent (reduction)?

I have used Prussian blue nanoparticles as a redox couple. The PBNPs have been made using only one salt precursor. Also, during scan rate studies, a small oxidation peak can be consistently found...

31 July 2024 9,697 0 View