Mohamed Balbaa

11 Questions 27 Answers 0 Followers

Questions related from Mohamed Balbaa

What is the effect of surface roughness on residual stress measurement?

I want to know what is the effect of surface roughness on the accuracy of measurement of RS by XRD. Are there any publicaitons addressing this issue? Also, if it has an effect how to neutralize...

11 November 2018 6,083 5 View

How to define strain as initial condition in Abaqus?

I ran an explicit model in abaqus and I want to create an implicit model with initial conditions of strain, stress and temperature resulting from the first model. How can I perform that? I used...

01 January 2016 9,533 9 View

In Abaqus, how to simulate multi pass heating in DFLUX?

I want to simulate multi-pass moving heat source using DFLUX. I understand that I should use for loop but couldn't get to work, so is there any example or similar case to it?

11 November 2015 7,713 2 View

Is there a source that explains the modeling of Friction in solids in SPH?

I want a source that explains how SPH deals with friction modeling example Coulomb friction. This can be for either Abaqus or LS-Dyna or any other software that explains how they can detect...

04 April 2015 748 2 View

In Abaqus, what is COORDS(1) and how do I change it with time?

I have a subroutine DFLUX and I want to make the FLUX(1) to move so I must change COORDS (1) so should I make a loop and change time from zero to TIME(2) or what should I do?

03 March 2015 2,444 2 View

How can I run DFLUX subroutine in Abaqus?

I want to model moving heat flux in Abaqus so I understand that I must use subroutine DFLUX. I've already linked the visual studio 2008 with fortran compiler and in the job input file I have under...

02 February 2015 5,888 3 View

I need a reference for Hugoniot parameters for Inconel 718?

I want to find the 3 hugoniot parameters ( C, S, Gamma0) for Inconel 718

01 January 2015 4,923 1 View

Can I run an implicit step after an explicit step in Abaqus?

Can I apply an implicit step of temp-disp after an explicit temp-disp step in Abaqus? I want to model relaxation after machining where machining is an explicit step while relaxation is an implicit...

01 January 2015 4,237 3 View

Is there any publication or reference that has the Johnson Cook failure parameters (d1-d5) for Inconel 718?

The Johnson Cook failure is defined by 5 parameters d1 to d5 that are used to simulate material failure in Finite Element

12 December 2014 2,923 3 View

How can I solve tensile instability in SPH in Abaqus?

Is there a solution or work-around for tensile instability in Abaqus?

12 December 2014 9,790 3 View

How can I use renormalized SPH formulation in Abaqus?

LS-Dyna has re-normalized SPH formulation. Is there a similar formulation in Abaqus?

12 December 2014 5,470 1 View