Blog posts

Imperfection in a Riks Analysis (ABAQUS)

Submitted by Anonymous (not verified) on Fri, 07/25/2014 - 16:39

I am performing a nonlinear post buckling using Riks method. I went through different tutorials for the same. I happen to see that an *IMPERFECTION is introduced while performing the non linear buckling analysis.Why is it done? How does/will the model react differently if the Imperfection is no introduced?

I wish to plot the graph of load v/s displacement for 1,2,3,4...10 times the critical buckling load during the post buckling analysis (Riks method). How do I do that?

modeling analysis of microstructure phase transformation in an alloy

Submitted by aapaaapa on Fri, 07/25/2014 - 06:45

Hi every one,

I need to modeling a thermal analysis of a microstructure of steel or other alloy by FEM or XFEM. so i need some metallurgical data for phase transformation.for example at which temperature or time martensit converts to austenit or etc. I also need how I can model this microstructure in abaqus that has change in boundries due to phase transformation. i appreciate if someone help me.

thanks

Coupling GSM/ALE with ES-FEM-T3 for fluid-deformable structure interactions

Submitted by chenlei07 on Thu, 07/24/2014 - 20:30

Research Associate in Dislocation Modelling (Fixed-term for 48 months)

Submitted by liguozhao on Thu, 07/24/2014 - 16:39

job

Modelling of Dislocation-Microstructure Interaction at a Short Crack Tip

This project aims to model dislocation-microstructure interaction at a crack tip and associated short crack growth for nickel alloys.

You will join the vibrant Mechanics of Advanced Materials group at Loughborough (www.lboro.ac.uk/moam) which has gained significant experience in the study of mechanical behaviour of advanced materials.

Perturbation method for the second-order nonlinear effect of focused acoustic field around a scatterer in an ideal fluid

Submitted by LG on Thu, 07/24/2014 - 13:23

Perturbation method for the second-order nonlinear effect of focused acoustic field around a scatterer in an ideal fluid

By: Liu, Gang; Jayathilake, Pahala Gedara; Khoo, Boo Cheong

A postdoctoral position available at Nanyang Techn Univ (Singapore) in computational mechanics and multiphysics modelling of relevant areas, e.g. soft matter, cell in microfluidics, numerical methods, micromechanics or others.Pls email to lihua@ntu.edu.sg

Submitted by Hua Li on Wed, 07/23/2014 - 07:44

job

A postdoctoral position available at Nanyang Technological University (Singapore) in computational mechanics and/or multiphysics modelling in relevant areas, for example, soft matter, cell in microfluidics, numerical methods, micromechanics or others.

Please drop your CV to lihua [at] ntu.edu.sg (lihua[at]ntu[dot]edu[dot]sg), if you are interested in it. Thank you.

critical stress for delamination in multilayers

Submitted by vondon on Wed, 07/23/2014 - 06:25

could someone tell me some equation to get the critical stress for delamination in multilayers?

Thanks,

Question on Fatigue crack growth C and m Paris Law

Submitted by Rem on Wed, 07/23/2014 - 06:04

Fatigue crack growth

paris law

Are m and C in the paris law equation dependant on the material property or geometry?

For example if using the same material with different thickness, do the C and m values change? For clarity assume centre notched plates, with different plate thicknesses but same material (steel or aluminium).

I appreciate your time.