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ABAQUS CAE Tutorial on Cohesive elements

Dear ALl,

Who could recommend me tutorial for cohesive elements in CAE.

I have tried to find in Internet and didn't find it.

Best regards

ABAgirl

quasi-static simulation

hi,

i am working on crushing of thin-walled section. i want to simulate quasi-static crushing in LS DYNA. for that i did scale the mass, but somehow it is not showing the deformation. i get deformation of .03mm for tube of 90mm. what might have been gone wrong?

please help me.

thax 

muhendismrt's picture

Positive definite stress-strain matrix

Dear friends,

 I'm an MSc. student at Bogazici University, Turkiye and I'm working on a thesis project about the failure behaviour of fiber reinforced laminated composite plates under different loading types. The material which we use are AS4 fiber reinforced  prepregs and their mechanical properties are the following:

 


E11 =134,000 MPa

E22 = E33= 9480 MPa

G12 = G13= 5490 MPa

G23 MPa =3272

Modeling of a reinforced concrete beam under a rolling load.

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Hi, we're trying to model with ABAQUS a reinforced concrete beam under a rolling load. We want to investigate the compressive low cycle fatigue of reinforced concrete elements under a variable bending moment. We are using a Static Step (total step time: 18000 sec) and a concentrated force applied on the middle cross section with the following load history*:

Wenbin Yu's picture

DNAD, a simple tool for automatic differentiation

All,

I am writing to introduce DNAD, a Fortran module I wrote for automatic differentiation of analysis codes written in Fortran including those legacy codes written in Fortran 77. Although only implementation using Fortran 90/95 was carried out, it is straightward to translate it to a language you like such as c/c++.

how to get seepage quantity using ABAQUS

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Hi, I am doing a simulation of a reservoir, and I want  to calculate the water quantity on a boundary. But I find that it seems ABAQUS cannot output the results directly. If I were wrong, then how to output the seepage quantity, or if ABAQUS cannot do this, how can I get the result?

 Thanks!

Need Help regarding SFTC DEform 3D software

i am using Deform 3D for my analysis but wats the problem in this software i cant input the material properties,flow stress of the material so the validation with theoritical becomes difficult so if anybody doe know about this how to input the matl pproperties and force of the press please help me

why does not my subroutine work?

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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

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

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

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 !!!!

 

Regards

How can I model the progressive damage of composite materials

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. 

hamawandy's picture

ABAQUS/aqua offshore structures analysis

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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

wave propagation

I have a concrete pile under impact load ,is there a any method to simulate wave propagation in Ansys,

please help me.

Mukunda Madhava Nath's picture

Residual Stress Modal Analysis in Abaqus

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I want to do modal analysis of a simple structure under the effect of residual stress. How can I do it in Abaqus ?? I need the precise steps to do with the GUI.

How the abaqus calculate the energy ?

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How the abaqus calculate the energy ? such as ALLSE  ALLCD  ALLKE......all the energy variables.

what is the eaxct  equations?

all the abaqus manuals hadn't say something about the equations to calculate the energy.

ANSYS Mechanical Thermal Analysis - Average Temperature

I've a result from thermal transient analysis. The result shows the maximum and minimum temperature of 4cm * 4cm plate with thickness of 1 mm.

Since the temperature of that plate is not uniform, so I'd like to see the average temperature from overall plate. How can I do it?

Thank you.

ABAQUS - Beam, Plane Stress, and Plane Strain Element Compatibility

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Hello,

 

I am working with a simulation of a thin component bonded to a thick
component in ABAQUS 6.7.  Here I utilize beam (B21) elements bonded to
plane strain elements (CPE4R) using a *TIE constraint, and another
simulation that uses plane stress elements (CPS4R) bonded to plane
strain elements (CPE4R) using a *TIE constraint.  In both cases the
plane strain elements represent the slave surface for the bonded
constraint.

Extrude a solid section

Hi all,

       I am having some troubles with the extrude command in Abaqus cae. I have modeled my sample as a 2-D geometry and now I want to move to 3-D for the same section. But I am having trouble extruding my 2-D section. It seems to me very weird and far to complicated the extrusion process in abaqus for such a simple task...

Thank you,

          Panos

Discussion forum w.r.t. CONTACT software

Herewith I announce to you that we created a discussion forum for topics related to our contact mechanics software on our website
www.kalkersoftware.org .
The idea is to facilitate discussions and information exchange between users,
and between users and developers.

Abaqus "initial condtions"

Am writing as a statement in my model the option initial conditions, am not sure where is the excat palce so i run my file to identify the error "as follows" but still not knowing where to do so?!! (it said under level: Model)!!!

Thank you!

Hamed YN's picture

How to obtain array constants, A(N), in MPC subroutine Abaqus

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