Can anyone help me with the error "The loading condition might make main crack under compression" in Abaqus?

03 April 2015 8,003 7 View

Can anyone recommend a source for failure properties of Ammonium Perchlorate?

I've been trying to get the failure parameters such as fracture toughness or fracture energy of Ammonium Perchlorate but I haven't found any source yet. Could someone assist me with one? Is it...

03 April 2015 1,309 6 View

Can one create a centre crack using XFEM method in ABAQUS?

Can one create a centre crack using XFEM method in ABAQUS? I created an edge crack earlier and it worked perfectly. However, if I try to create a centre crack, it says, "failed to locate crack...

02 March 2015 4,299 4 View

Can anyone assist me with Von mises stress field ambiguity in Abaqus XFEM crack modelling?

I am trying to model an edge crack in an Aluminium plate with thickness (400*400*200) on ABAQUS using XFEM. The crack opens fine (with a little ambiguity in the opening shape), however the Von...

02 March 2015 5,188 4 View

How can I see the crack propagation visualisation?

I have an edge crack model and I want to see how the crack propagation occurs. I have enabled crack growth in the step under interactions. I can see the crack opening but not the propagation....

31 December 2014 1,129 5 View

Can someone help me with a "Zero pivot" error on Franc 2D?

I have a 2D plate with different material regions defined on it. When I try to run it, it says "Zero or negative pivot. Check for Rigid body modes". However, when I perform the same analysis on...

31 December 2014 5,971 9 View

How to make an edge crack open in a 2D model in Abaqus?

I'm modelling an RVE with an edge crack in ABAQUS to study crack propagation using the XFEM method. For some reason the crack is not opening, no matter what load or crack size I use. Could someone...

31 December 2014 8,181 3 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View