Skip to main content

ABAQUS

Beginner with abaqus.. need help modelling an impact load

Submitted by dandan on

Hi,

Im really quite new to using abaqus and I am having trouble with my modelling.  Esentially it is quite an easy problem but my knowledge of the programme is limitted.  Basically all I want to model is an impact load on a wall but im not sure about the analysis steps.  Initially i have been using a static step with a concentrated load but I dont know how to model the dynamic response the wall should experience after the load has been applied.

If anyone can help with this I would appreciate it a lot.

About the half-step residual tolerance in Abaqus

Submitted by NewerLi on

    This days, I am working on the dynamics analysis using the Abaqus. the implicit dynamic integration method in abaqus is HHT-alpha. I found that a very strange parameter about the method is the half-step residual tolerance . I don't know the parameter is whether important or not and how to determine it.

thank you very much :)

Probelm with Abaqus/Explicit

Submitted by Gouse on

Hi,




I am using cohesive elements to model the interface around a
circular inclusion. First I used Abaqus/standard I got proper results
but when I used same values with an amplitude curve (tabular, linearly
applied) to apply load quasi-statically in Abaqus/Explicit, I could not get a converged
solution. Field variables are oscillating and elements getting
distorted excessively. In Abaqus/Explicit I am applying load very
slowly but even though same problem persists.



Regards




Gouse 

Abaqus UEL subroutine help

Submitted by Ghandi_R on
Choose a channel featured in the header of iMechanica

Greetings to all Imechanicans ! ,

I just started using the scripting interface in Abaqus, and i stumbled into a small issue, I have a sample input file which is a small model for crack simulation and its UEL subroutine, I know how to open the input file  but I don't know how to open the UEL subroutine that goes with it, I get the following error :

The model "projGH" has been created.

Hashin damage model for fiber reinforced composite in ABAQUS

Submitted by Gyanender Singh on

Hi Everyone,

I am doing a project in which I am trying to study about the
drilling of composite. The aim is to optimize the drill and process
parameters to minimize the damage. For this I have tried to simulate
the drilling process in ABAQUS and I am using the Hashin damage model.
The problem is that Hashin damage model works only for the lamina which
takes only plane stress elements. Since only plane elements are allowed
I am unable to simulate cutting action of drill as the composite plate
is effectively 2D.

Modelling Hyper-elastic Plate Using ABAQUS

Submitted by J Mahmud on

Dear All,

For months, I have tried to model a plate with circular hole which has the properties of hyper-elastic material (Ogden) but the results are still not promising compared to literature (Y Basar 1998).  The main problems are:

1. The maximum load I succeeded to apply was q=26, while literature had applied load up to 90. For q > 26, the analysis will terminate with errors such as too many attempt, excessive distortion etc.

2. The results I get for q<26 are not the same as literature. 

I attach my best result for your viewing.