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Abaqus Help Needed for heat analysis in beams

Hello, I am trying to model a steel beam subjected to elevated temperatures using the ISO834 curve.

Hisham's picture

Wave-Structure-Foundation interaction (Fluid-Str-Porous Media int.)

Dear all,

can anyone direct me to litrature in which modelling the diffusion equation of fluid porous flow is unified with the free fluid flow. I mean that the porous media is considered deformable and equilibrium conditions are solved simultanouesly with diffusion eq. for porous flow and at the same time fluid velocities inside and outside porous media are linked together in a poroelastoplatic framework; where porosity and geometry are updated with each time step!

Thank you in advance!

Hisham El Safti

Who can apply me code of FLASH ?

Recently I have some reseach on z-pinned composite. I hope use finite element method to analyse the unit cell . I found a FE code called FLASH mentioned in many papers. I think the code will be helpful to my work.But I can not got the code form my resource. So,I ask help in the forum. Two papers about the code are given in below. I am very expect for your help!!!

My email:applexie007@gmail.com

Finite Element Method.

Hello,

I would like to develop a Program for finding the Stiffness of a stabilizer bar using FE methods.

I have a fairly good idea about FE methods as to how to proceed but the books i referred to mostly dealt with symmetric solids.

Can someone throw light on FE procedure for such component with a complicated shape(or some books that deal with 3D assymmetric solids)..??

Thanks.

claudioacareglio's picture

Paper of necking

I am  searching the paper "Evaluation of stress distribution in the symmetrical neck of flat tensile bars" of J. Aronofsky published at Journal of Applied Mechanics (1951).

Viscoelastic material: Prony series in Abaqus

Hello
Everybody,

I’m using
Prony series to model viscoelasticity of an asphalt material in a pavement. I
have defined the material properties through time-domain Prony series in
Abaqus. The parameters are:

g_i (shear
relaxation modulus ratio): 0.8

k_i (bulk
relaxation modulus ratio): 0

Jean-Michel Pereira's picture

A symposium in memory of Pr. Olivier Coussy

Dear All,
I would like to announce a symposium in memory of Pr. Olivier Coussy

Mechanics and Physics of Porous Solids : a tribute to Pr. Olivier Coussy

It will be held at Ecole des Ponts ParisTech, France from 18 to 20 April 2011.

All informations can be found in the ongoing website http://navier.enpc.fr/events/mpps2011

 


Jean-Michel Pereira
on behalf of the organizing committee

Lucas Maximo Alves's picture

Thermodynamics and Fracture Mechanics

Hello! Smile

Let's discuss here some subjects related to Fractal Fracture Mechanics and Fracture Thermodynamics,

 

1. Introduction

M.Hassan Mansouri's picture

Looking for Papers

Dear all

I am looking for some papers about hygrothermal effect in composite plates.

some of these are here:

1-   Lee SY, Yen WJ.
Hygrothermal effects on the stability of a cylindrical composite shell panel. Computers and
Structures, 1989, 33, 551-559.

2-   Librescu L, Stein M. A,
geometrically nonlinear theory of transversely isotropic laminated composite plates and its
use in the post-buckling analysis. Thin-Walled Structures, 1991, 11, 177-201.

composite slab

I am going to study the diaphragm behaviour of the composite slab under the lateral loading.

To simulate the system using FEM package (such as ANSYS or ABAQUS). the obtained results from FEM package would then be verified by experimental results that must be done by myself.

 

mrb3h's picture

Post-doctoral positions at UCSB in mechanics

The Materials Department and the Department of Mechanical Engineering at UCSB invites applications for post-doctoral fellowships in computational mechanics, with an emphasis on (1) micromechanics of layered systems and (2) high temperature composites. The position involves significant collaboration with a wide variety of colleagues working on many aspects of structural materials, including those in industry and other academic institutions. Preference will be given to applicants with a strong track record of publication.

Contact analysis in abaqus

I’m very much obliged to you if you would be so kinds help me.  I am trying to design washing machine. Initially I want to try doing a static analysis. For this, I have modeled cylinder (shell) and, placing them on the solid ribs. After this i have applied boundary condition to the assembly, and also a load (centrifugal). For only Tie connection between cylinder and rib, I got simulation but less strain at rib region.

Helmut Boehm's picture

Positions for doctoral students at TU Wien

A new doctoral college, Energy Systems 2030, is about to start at Vienna University of Technology (TU Wien), Vienna, Austria.

A one-page flyer is available at http://www.ilsb.tuwien.ac.at/gener/DC_ENSYS_e.pdf and the doctoal college's web page can be found at http://ensys2030.tuwien.ac.at/EN/.

Within ENSYS 2030 there are 10 openings for doctoral students. Applications can be filed from August 5, 2010.

Foundation on soil - ABAQUS

Hi there,

 Recently I have modelled a 2D block of soil, at the first step of analysis the soil block subjected to a gravitational load (Gravity) and gravitational stresses generated in the soil block, at the second step, a little rectangular part of soil block removed and currently a concrete block with same size of removed soil embedded on the soil block. this concrete block to be subjected a surface loading.

Bent F. Sørensen's picture

Professor in Materials Mechanics and Composite Materials

Risø National Laboratory for Sustainable Energy at the Technical University of Denmark, Risø DTU invites applications for a position as Professor with emphasis on research in Materials Mechanics and Composite Materials.

Read more here:
http://www.dtu.dk/English/About_DTU/vacancies.aspx?guid=3de7fe79-4392-4f...

modal damping ratio for viscoelastic material

Hi, I am wondering if anyone can give me suggestion on the following problem.

 I would like to do Frequency response study on a viscoelastic material. The frequency response computation usually takes a modal damping ratio. However the viscoelatic material is defined by K (elastic bulk modulus), G0 (short-time shear modulus), Gi (long-time shear modulus) and Beta (decay constant).

Is there a way to find  the modal damping ratio from the time domain viscoelastic material parameters (K, G0, Gi and Beta)? E.g. in a FEM environment?

 Thanks.

 

Pros and Cons of element deletion in Abaqus

Hi all ... i have been doing element deletion extensively in my analysis but was wondering ... wat are the Pros and Cons of using this method. To my knowledge was wondering how the deleted mass and energy are conserved through out the analysis. Thank you all.

SIF for 3D crack in ANSYS

Dear all

I am searching for procedure to calculate stress intensity factor of bonded repair of cracked plate, so any one has any idea how to calculate stress intensity factor in 3D crack model By ANSYS, please guide me. I need your help.

Looking for your help.

Please share your valuable documents at:-

himanshu@iitp.ac.in

hpiitp@gmail.com

The 2012 International Congress of Theoretical and Applied Mechanics

Once every four years, the International Union of Theoretical and Applied Mechanics (IUTAM) holds a Congress, the International Congress of Theoretical and Applied Mechanics (ICTAM). 

Rassoul Tabassian's picture

2nd International Conference on Composites: Characterization, Fabrication and Application (CCFA-2)

Important dates: 

31 July 2010 Abstract submission (abstract on one page)   

15 Aug. 2010 Abstract acceptance  

30 Aug. 2010 Early registration  

30 Sept. 2010 Full manuscript submission (full paper on six pages)

v.tagarielli's picture

PhD opportunities @ Oxford (for EU / UK nationals)

Dear iMechanica commmunity,

we are looking for 3 PhD students at Oxford, starting from the 1st of October 2010 or as soon as possible thereafter. The closing date for the application is the 26th of July. The 3 students are required for two different research projects, namely:

 

1) Underwater blast on composite structures - open only to EU nationals; 2 PhD students are required. The studentships are advertised here

Wei Hong's picture

Modeling Viscoelastic Dielectrics

Dielectric elastomer, as an important category of electroactive polymers, is known to have viscoelastic properties that strongly affect its dynamic performance and limit its application. Very few models accounting for the effects of both electrostatics and viscoelasticity exist in the literature, and even fewer are capable of making reliable predictions under general loads and constraints. Based on the principals of nonequilibrium thermodynamics, this paper develops a field theory that fully couples the large inelastic deformations and electric fields in deformable dielectrics.

cast iron + aluminium

Does anyone know where i can find the following?

-yield and ultimate tensile strength of cast iron and aluminium as a function of temperature

-fracture energy as a function of temperature for both metals

 *the fracture energy i am referring to is for damage modelling in XFEM

 

Cheers

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