About B-Bar method in Abaqus

01 January 1970 1 8K Report

Abaqus uses B-Bar method in CPE4 and C3D8 elements, in which the definition of strain has been modifed.

Huachao Deng, The B-bar method works by modifying the definition of strain in the element. Instead of using the standard Green-Lagrange strain, the B-bar method uses a modified strain tensor that is called the B-bar strain tensor.

Badges
Science topic

More Huachao Deng's questions See All

What are the assessment methods for computational thinking?

What are some methods to measure computational thinking? What are the assessment tools for computational thinking?

08 February 2024 4,016 2 View

How to convert the voltage signals to forces in c3d file from Kistler force platform?

Hi, there, Recently I get the c3d data file from Kistler force platform (Type 9287CA), but all the analog signals were represented as voltage (V). Are there any functions to convert the voltages...

25 December 2023 383 0 View

What are the latest topics that involve teaching English as a second language?

English languge teaching, PhD

26 September 2023 9,381 1 View

If you can help me complete this experiment, you could be in with a chance of winning the Nobel Prize in Physics?

If you can help me complete this experiment, you could be in with a chance of winning the Nobel Prize in Physics. Link to the paper: http://dx.doi.org/10.13140/RG.2.2.14157.61920 There are...

20 July 2023 7,977 0 View

How to know the transmission of AR(anti-reflective coating) coating?

For a single layer anti-reflective coating, people generally say if the layer thickness is λ/4, the reflection could reduce and transmission increase. As the figure, because the light was...

20 June 2023 3,547 3 View

Regarding high-throughput sequencing to identify nematodes, how to extract nematode DNA from soil?

Hello, I have a small white scientific research. How do you extract nematode DNA from soil? The literature I have seen says that there are two methods, one is to extract total soil DNA using kits...

16 June 2023 5,132 1 View

How do I preserve soil samples that need to be identified with nematodes?

I'm a beginner and would like to ask you some questions about identifying nematodes in soil: How do I preserve soil samples? 4°C or -20°C? What are the steps to identify nematodes with a DNA...

06 June 2023 9,026 4 View

Is it possible to output the element stiffness matrix in each iteration in Abaqus/Standard?

I want to check the effect of DDSDDE in UMAT on the element stiffness matrix. So, is it possible to output the element stiffness matrix in each iteration in Abaqus/Standard?

11 April 2023 2,369 2 View

What is the equivalent stiffness matrix caused by the acoustic elastic effect? What are their equivalent elastic constants?

Isotropic metals in a stress free state have a stiffness matrix. Under the action of prestress, an equivalent stiffness matrix containing the third order elastic constants l, m, n can be...

22 March 2023 3,242 1 View

How can I determine the magnitude of burgers vector when calculating the edge dislocation density by (10-12) XRC?

Dear RG community. I want to estimate the edge dislocation density of AlN so I need to know magnitude of burgers vector. 0.3112 or 1/3*0.3112

16 March 2023 8,285 1 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

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

Simulation of metal drawing by Abaqus with UMAT?

Hello, colleagues. Recently, I have been working on a metal processing simulation with my UMAT in Abaqus. I have outlined the corresponding simulation, but I keep encountering issues that cause...

30 July 2024 7,062 1 View

Why running a restart analysis in Abaqus in Ubuntu OS gives an error as attached when running the same job in Windows doesn't give any error and runs?

I am trying to run a restart analysis, which imports deformed configurations of parts from a generated ODB file. It runs fine in Windows OS but when I try to run it in Linux OS, it is giving some...

29 July 2024 9,572 3 View

How Can I Apply Hashin Damage Properties to Solid Elements in Abaqus Without Using VUMAT?

Sure, here is the translation: I have a 3D orthogonal woven composite structure where warp, weft, and binder yarns are oriented in three directions. After modeling these yarns and the matrix in...

28 July 2024 8,169 0 View

Abaqus cylinder buckling riks analysis?

hi, I am doing a risk analysis of a cylindrical fuselage with windows. I have applied contact interactions between the different parts, and I have applied a unit value load to a reference point,...

20 July 2024 647 2 View

Abaqus 2023 - How to know how many elements have been deleted during a simulation ?

Hi all, I am using the element deletion process based on a Tsai-Wu criterion through a UMAT with a specific State Value controlling the process (DepVar -> Variable number controlling element...

17 July 2024 1,501 1 View

How to cacualte the creep life of polycrystal with CPFEM?

I saw a paper(PHAN V-T, ZHANG X, LI Y, et al. Microscale modeling of creep deformation and rupture in Nickel-based superalloy IN 617 at high temperature [J]. Mechanics of Materials, 2017, 114:...

16 July 2024 8,436 0 View

Hello, does anyone know how I can get coordinates of two specific points on a moving body in Abaqus when applying a vdload subroutine?

Hello I am trying to simulate repulsive force of two permanent magnets in Abaqus. I have implemented Force equations into a vdload subroutine. sensitive parameters are the center to center...

15 July 2024 3,491 0 View