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ABAQUS bending moment diagram

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Hi All

Can anybody let me know please, how to draw bending moment diagram using ABAQUS? I am fighting with this problem for a couple of days. I tried with the SF (SM1) variable but it does not give the value as I expected. Any help? Please.  Mahbub

azadpoor's picture

Failure of protein materials in disease and other extreme conditions

The recent issue of Nature Materials includes a review paper on the deformation and failure of protein materials in physiologically extreme conditions and disease. The paper was interesting, so I am posting the abstract here. For the full-paper visit Nature Materials.

Nature Materials 8, 175 - 188 (2009) | doi:10.1038/nmat2387

Deformation and failure of protein materials in physiologically extreme conditions and disease

Markus J. Buehler & Yu Ching Yung

azadpoor's picture

A recent paper about friction laws at the nanoscale

A very recent paper published a few minutes ago in Nature addresses the issue of friction laws at the nanoscale. Here is the abstract of the paper.Interested? here you can download the paper.

Nature 457, 1116-1119 (26 February 2009) | doi:10.1038/nature07748; Received 3 September 2008; Accepted 23 December 2008

Friction laws at the nanoscale

Yifei Mo1, Kevin T. Turner1,2,3 & Izabela Szlufarska1,3

modeling corroded pipe with Abaqus

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Hello everyone,

 I'm doing a 3D modelingcorroded pipe.  The results is differant from the Analytical solution (modified N31G mathod).  Abaqus results is actualy half of the analytical solution.

I need some help whith:

1-  Half of the pipe was modeld so, how should i constrain the pipe? I constrained it as in the attached picture.

2- How can i know how much load was applyed?

3- how can i magnifiy teh displacment?

 

Thank you,

Badr

 

 

 

aiysha19's picture

abaqus 3dmodelling issue

abaqus 3dmodelling issue:

am working in 3dmodelling fluid structure interaction problem in abaqus am always getting this error.this error is

file "phython/monitormechanism.py",line 285 ,in read

error:(10054,'connection reset by peer')..am getting this error  but icant able to solve it..pls help me..

ANSYS

 

DEAR ANSYS USERS

CAN I CONDUCT DYNAMIC ASSEMBLY ANALYSIS USING ANSYS RECENT VERSION?

yawlou's picture

Help regarding 2D co-rotational beam formulation

I have implemented a 2D co-rotational truss formulation in matlab.  I get identical results to OpenSEES.

Now I'm trying to implement a 2D co-rotational beam formulation.  I have followed the simple formulation in Crisfield's book volume 1.  It seems like this should be a fairly straight forward extension of the truss formulation.  I have rederived everything Crisfield has done and obtained the same results, yet something is still incorrect.

Phonon Dispersion Relations from MD simulation

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How does one calculate the phonon dispersion relations from the output of a molecular dynamics simuation? 

I have successfully calculated the complete phonon density of states using a fourier transform of the velocity autocorrelation function, but I am still confused as to how to calculate the particular phonon dispersion curves.

Thank you.

Mike Ciavarella's picture

Strain gradient plasticity: the flow rule of Fleck and Hutchinson violates thermodynamics ?

A recent paper on JMPS has seriously questioned the foundation of the SGP theory of Fleck and Hutchinson.  The matter is not simple, but is it a good bench test for imechanica to discuss?

doi:10.1016/j.jmps.2008.12.002    

T.ZENG's picture

Self-consistent Modeling of plastic and viscoplastic polycrystalline materials

I am a freshman of researching the macro response of  metals with micromechanics scheme. Now,I have to build a  self-consistent modeling of plastic and viscoplastic for polycrystalline materials. However, it seems difficult for me as I have little knowledge of polycrystalline and its mechanics propertities.

If you know some systematic books or papers about my research area. please let me know. Your kindness will be great appreciated!!!

What yield criterion must I use?

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Nowadays I am analyzing a study of a hip prosthesis including the bone. I am making the FEA/FEM analysis by Pro/Mechanica software. Metallics materials are titanium alloy (Ti-6Al-4V) and Chromium-cobalt-molybdenum alloy (CoCr29Mo). So they are ductile materials. I understand the main load is the flexural load on the hip.

Compressive strength/failure test on brick

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Hi everyone. I'm new to this forum and quite new with FEA.

Currently i'm trying to find compressive strength or maximum failure stress on a modeled brick. Is't possible? What parameters or properties do i need in hand in order to proceed?

Regards,
KenLo

Help me through please!- Need Guidance!

 

Dear All,

 I am a Masters Student in Material Science, I am supposed to do the Finite

Element modeling of PTFE material with few content of short carbon fibers. Could any of you please suggest the best,

 1.Modeling method, its

2.Material parameters and 

3.References of that best modeling method.

 

Would be really thankful and would be helpful for my studies as well. 

 

Regards,

Raghu Raman Rajagopal

Denmark. 

 

Producing Stress Analysis from Strain data

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I am doing research on the stresses that are produced when a retainer (a thermoplastic sheet) is placed on the teeth. We've designed the project so that we take an initial scan of the sheet and a final "shifted" scan of the sheet. We'd like to compare, find the strain, and calculate the stress neccessary to produce this strain.

I was hoping to use FEA for this...is it possible? I have access to Abaqus and Ansys, and where can i find the commands that allow me to do this.

help for VUEL

Hello,

sorry for my bad english,

I want help for VUEL Abaqus subroutine, I don't no how to compute the time increment for stability for the shell structure.

 Thank u. 

Functionally graded materials

can any one tell me how to model FUNCTIONALLY GRADED BEAM using ANSYS software

principal directions for 4th order tensor

Is it possible to find eigenvalues and principal directions for a 4th order tensor? How?

For a zero order tensor? for a first order tensor? for a third order tensor.........

many thanks

Modelling Ice deformation and fracture in Abaqus

Hello Abaqus Users,

I am new to Abaqus: I am trying to model formation and propagation of fractures in glacial ice (note: ice deformation mainly by plastic flow). I was wondering if anyone has modeled ice as a material exhibiting a nonlinear behavior, or possibly have a user subroutine for ice that I could use. Thanks in advance for any help.

Daniel

hi , Gurson and Polymer PP ...so hard to find the right way

i'm a new persone in this webside

i'de like to know more good things about Gurson model.

if u have any help

so , u can add me between ur friends

yacult273@hotmail.fr

thx for ur help  

ABAQUS_Heat Genration

Hi

i like to run this Job.

would you please help  me.

 thanks

Ansys creep

Hi,
Is there a place I can find explained examples or tutorials on how to model creep in ANSYS?
Thanks!

phunguyen's picture

solver for a very hetereogeneous system of equations

Hello everybody,

I am solving a FE problem on a hetereogeneous medium consisting of rigid phase (Young modulus of about 100 000 N/mm2), a softer phase (Young modulus of 20 000 N/mm2) and pore (Young modulus of 1 N/mm2). The reason that I have to mesh the pore is that there are some elements of rigid phase hanging out in the pores. So, if I do not mesh the pore, then my FE matrix is singular. 

Viscoelastic cooling of glass

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Hi ,

I am trying to model cooling of molten glass in ABAQUS. Does any one knows how to convert the viscosity data for ABAQUS?

I have viscosity curve against temperature for my glass. In ABAQUS, choosing time based Viscoelastic behaviour, Prony series coefficient needs to input for ABAQUS.

DOes any one knows how can i find theses coefficient from viscosity curves, or any other thing that can be helpfull.

Thanks

Soheil,

 

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