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why does not my subroutine work?

Submitted by hunanyangdong on
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User subroutines in ABAQUS

Hello, Everyone!

     This is the first time that I come here to ask for help,so I wish that I can get the answer!

     I'm modeling with ABAQUS, My problem is how to use a subroutine which contains two external functions ?I need your help, Thank you!

Help Regarding composite material Analysis in Ansys

Submitted by xyront on
software
composite science

hello to all,

                 I m new to composite material analysis, I am  doing a project for wind turbine analysis in ansys. The wind turbine contains total 96 layers of two different material which is stacked alternatlly. i dont know about the modelling and analysis procedure of composites. i don't understand how to connect the surfaces.

                 thanking you..............

Ansys File Import

Submitted by vahid2364 on
software
Ansys iges file import

I am working on a FEM project in which i should import a complicated 3D model to Ansys.

 I created The IGES format of the model which the size was 52Mb for the IGES file.The model contains very curvy surfaces and it is complicated.it is created By 3D doctor....

 

when i import it to ANSYS it doesnt create any volume and i can see only small areas. 

now how can i make the model more handy for ansys....also i need to have a volume in order to meshing....

could u please help me to get out through this?

Thanks 

Computing Thermal Stresses for Composite using ABAQUS/CAE

Submitted by aik_shuvo on
software

Hi,

I am new in ABAQUS. I am trying to find the thermal stresses created by change in temparature of 50'C for lainate consisting of [90/+45/-45/0]s configuration. Eventually what I intend to do is find the stresses under a simple uniaxial load which also consider the change of temperature while calculating the stresses in each ply. I have the material data for the coefficinet of thermal expansion both for longitudinal and trnasverse directions (alpha_11 and alpha_22).

Is there any suggetion of approches I may take.

Many thanks in advane !!!!

 

Computational impact, friction and contact mechanics. the Siconos software

Submitted by vacary on
software
impact
contact mechanics
Coulomb friction
multi-body systems

Dear colleagues,



For people interesting in the simulation of solids mechanics with impact contact and friction, we are pleased to announce a new release of the Siconos software. The software is open-source, under GPL Licence and can be found at http://siconos.gforge.inria.fr/

How can I model the progressive damage of composite materials

Submitted by Jameswei on
software
UMAT
progressive damage
USDFLS

Recently, I indulged myself into the progressive damage simulation of composite materials. I firstly used the USDFLS to create several fields to define certain kinds of damage, such as fiber crack, matrix crack, shear damage and delamination. One curious thing that I experienced into this is that ABAQUS/Standard informed me that "Stiffness defined by engineering constants is not physically reasonable. Check choice of poisson's ratios". I checked the data and changed some to comply with the rules of the transversely isotropic materials and the program proceeded. 

ABAQUS/aqua offshore structures analysis

Submitted by hamawandy on
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Hi Friends

I would like to get informations about ABAQUS aqua which is being used for offshore analysis, if any one have anything about that subject including (tutorials , examples and notes ) I would be grateful to him in providing me with.

Thank you all

A Python IDE (SciPylot)

Submitted by AkandIslam on
software

Those who have used Python for course works or for research purpose they can use our Python IDE named "SciPylot". It has more traits than any other currently available Python IDE's. Installation guide is added in docs. In near future it will be released under open source license, therefore you can use as your own and free to distribute it. Hoping you will love to do Python programming in "SciPylot" environment. This is compatible with Windows, Linux, and OS X.

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