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modelling progressive impact damage in Abaqus

Hi,

Iwant to model progressive impact damage problem in Abaqus. I know the theory, but I don't know how to use Abaqus to modeling damage. is there any example, tutoial or etc to help me?

thanks 

Patran/PCL parametrization

Dear imechanica users,

I have decided to learn how to use .ses and .pcl files in Patran to simplify repeatable operations.

In my problem, I would like to consider several beams of the same length, loading/BC conditions etc. but with different cross-section dimensions.
In order to make my calculations fully automatic, I have parametrized both width and height of the cross sections (as REAL a,b) and created nested FOR loops to obtain 20 different designs.

Online finite element analysis of nanoindentation (indentation)

Dear All, 

 

We (the NanoBIO Node at Illinois ) have a preliminary release of an online finite element analysis of nanoindentation (indentation) tool using FEAP

This preliminary release is limited to linear elastic material, axisymmetric geometry, spherical rigid indenter, and various boundary conditions. 

Modelling Crack in ANSYS APDL??

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Could you please explain to me how to model a crack in ANSYS APDL and obtain its stress intensity factor...

conjugate real eigenvalues

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Free Tags: 

I have an eigenvalue solver, subspace iteration, that can get only positive eigenvalues. I have a problem (K - lambda M)u=0 that has pairs of eigenvalues +/- lambda. How can I transform the eigenvalue problem for the solver to search for lambda^2 rather than lambda?

 

ANSYS and analytical modeling of elastic-viscoelastic-elastic sandwich beams

hi,,,,,,,,,,i am doing project on viscoelastic sandwich beam in ansys can any1 give idea how to model ,assign properties ,which element,,,,,,i need to choose if any references /tuturial/copy,,let me know it will be helpful,,,,,,,,,,,,,,for me...............sreensree1014@gmail.com

Reverse Engineering Ants for Robotics

New research is emerging out of a project where Ohio State University used our software to reconstruct the anatomy of an ant neck. In this project, micro-CT scans of an ant neck were reconstructed using Simpleware software and exported as a mesh for analysis in Abaqus.

Model from Abaqus to LSDyna

Hallo,

does anyone know, if it is possible to transfer a FE-Model from Abaqus to LsDyna? I build up the model with Abaqus Cae, so I can take either the *.cae or the *.inp file.

Thanks for your answers, Lena

How to export meshing from abaqus to nastran

Hello..

 

May I know how do I export meshing from abaqus to nastran? is it possible?

 

TQ

 

Regards 

Groove Noise simulation

Hello Everyone

 I am new to this iMechanica. I am facing difficulty with simulating Groove noise in abaqus.

 Can somebody help me out.

 

Thanks

How to model discrete mass-spring system in ABAQUS?

Hi everyone,

 

I am currently working on a project which needs mass-spring model. Previously I use MATLAB to implement 1D and 2D system, and I want to model 3D system by ABAQUS now. I am just starting to learn ABAQUS, it seems like there is not much tutorial or example about this kind of model.

 

SIMULIA's picture

Using XFEM in Abaqus to Model Fracture and Crack Propagation

Join us on this FREE one hour eSeminar. Register below for the live seminar in your time zone.

Engineers are under increasing pressure to improve and extend the operating life of structural components. Abaqus FEA provides proven robust capabilities for modeling bulk fracture and crack propagation in composites.

SIMULIA's picture

Register today for free webinar: IBM Application Ready Solution for Abaqus Users

v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}

You don’t need to be a big
company with extensive IT resources to experience the full functionality of the
best in class Abaqus product line within a high performance environment.
Realistic simulation is now more accessible than ever with the brand new IBM
Application Ready Solution for Abaqus. Optimized for key engineering and
technical applications, this solution takes the complexity, guesswork, and risk

Simpleware case study - permeability of 3D printed titanium implants

We have a new case study, looking at the permeability of 3D printed titanium implants. Learn how our software helped to streamline this project.

 http://simpleware.com/industries/materials/case-study-titanium-foam-opti... 

ABAQUS Reinforced Concrete Beam Model

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Hi All,

I am trying to model a simply supported reinforced concrete beam with longitudinal reinforcement. I am using 8-node solid elements for the concrete, and 2-node truss elements for the longitudinal reinforcement bars. I have embedded the reinforcement bars in the concrete using an Embedded Region constraint. I am then applying a displacement at the midspan (deflection control). I am using the Concrete Damaged Plasticity model for the concrete. My model begins to run but will not converge. Some of the error messages that I get are:

Wafer Butterfly Valve

Wafer Butterfly Valve

 

Wafer Butterfly Valve Specification: DN50-600

Wafer Butterfly Valve Temperature: -15°C~120°C

Wafer Butterfly Valve Pressure: 1.0MPa/1.6MPa

Wafer Butterfly Valve Materials of Body: Ductile Iron (GGG40,GGG50).Cast Iron (GG25),Stainless Steel 

fiber reinforced concrete modeling

hi everybody.

 i want to simulate and modelling fiber reinforced concrete in abaqus. but i don't know and i can't how to do it.

how can i simulate the fibers in concret? 

please help me in this case.

thanks 

Actmaker

ACTMAKER 2.5

New Simpleware Case Studies

We have a number of new case studies at www.simpleware.com, which cover recent applications of our 3D image to model software in the fields of Biomedicine and Materials research. 

Non-uniform expansion coefficient alpha in UEXPAN (ABAQUS)

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I want to define the expansion coefficient alpha as a function of the depth, alpha(z)=f(z). How can I achieve this in UEXPAN? I cannot find a way to incorporate coordinates in UEXPAN.

How can a zero length torsional spring element be modeled in ANSYS?

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Aoa

Hello
brothers

Currently,
I‘m working on the determination of the mechanical properties of carbon nanotubes
for different loading cases using ANSYS software ( i need to use them in my
model). My Finite Element model of graphene and carbon nanotube is working fine with beam188 element, but I have
some technical problems in my simulation. These problem are summarized in
points as follow;

abaqus

Hi

i want to add a stress relation to abaqus

can i write it in fortran in a way that i can enter specification like c11-c12-....in abaqus then have the calculation of stress in fortran and bring back the result in abaqus to analysis? 

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