Can i use k1,k2,k3 in my analysis for equivalent SIF in paris equation without performing non planar crack growth?

I am doing propagation life calculation of gas turbine disc under fatigue loading. I am doing this in ansys. i modeled surface crack in the model and calculated stress intensity factors k1,k2,k3....

04 May 2015 5,652 8 View

Can anyone provide any apdl code to perform automatic fatigue crack growth ??

Hi, I am using Ansys Apdl for fatigue crack growth. I need any one code to understand how it can be automized (recreating crack with node shift and remeshing). Thank you

01 February 2015 6,047 2 View

How can I create elliptical corner cracks in ANSYS classic or workbench?

Hi, I'm trying to model crack propagation using ANSYS software in my thesis. I've got a question concerning crack tip mesh. I'm modeling eliptic surface crack in a plate using CTMOPT macro and...

31 December 2014 3,294 6 View

How do I glue bodies at common faces in Ansys workbench ? (I cant use form parts option)

Hi, I have four bodies in contact with common faces. I can't use "form a new part " feature for four parts. I didn't see any option to glue required solids. I am simulating a fracture problem. For...

09 October 2014 8,871 9 View

How can one merge nodes on two co planar faces in Ansys WB ?

09 October 2014 9,781 17 View

How can I create crack surfaces in an already existing 3D model and how can I mesh it using singular elements in ANSYS classic or work bench?

Hi, I used CTMOPT macro in Ansys classic to create semi elliptical crack with mesh in already existing model. But the macro is not working with different a/c ratio. In Ansys workbench tools are...

09 October 2014 1,001 6 View

Out of ansys and abaqus which one is better for fracture mechanics analysis?

I am starting FEA analysis in fracture mechanics. I want to know the best software for the analysis. I am familiar with Ansys. can anyone state the points for choosing better software for fea...

08 September 2014 923 11 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

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View