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ASME AMD Award Nominations 2015

Submitted by Executive Comm… on

Traditionally, the deadline for ASME AMD awards nominations has been the 5th of November. However, starting from this year, the AMD executive committee instituted the new deadline of October 1st (see the earlier announcement here). This was done to allow the various awards committee members adequate time to review the growing number of nomination well before the IMECE annual conference.

Pile- Raft foundation using ABAQUS

Submitted by Prashanthi on

Hello all,

I have modelled a pile raft foundation using ABAQUS. The pressure applied on raft is 360kPa. After the program is executed, I tried to calculate the stress taken by each pile. It was found that the stress taken by a single pile is 35MPa which is 100 times more than the total applied load. But the settlements are reasonable. What might be the reason for this? Can somebody explain this?

 

Thanks in advance,

Prashanthi.

Modelling of Crack Propagation in ABAQUS

Submitted by Prashanthi on

Hello all,

I am new to ABAQUS. And my work is to model reflective crack propagation in flexible pavements. Initially i am trying to model a crack propagation in a beam with two point loads. I have tried to use both contour integral and XFEM. I need the values of J-integral at the crack tip. When i am asking J-integral in history output ( In a model where i used XFEM), it is showing that J-inegral is available for XFEM cracks which are not stationary XFEM cracks. I don't know how to resolve this issue. Can somebody help me?

 

Thanks in advance

Prashanthi

The Twist-Fit Problem: Finite Torsional and Shear Eigenstrains in Nonlinear Elastic Solids

Submitted by arash_yavari on

Eigenstrains in nonlinear elastic solids are created through defects, growth, or other anelastic effects. These eigenstrains are known to be important as they can generate residual stresses and alter the overall response of the solid. Here, we study the residual stress fields generated by finite torsional or shear eigenstrains. This problem is addressed by considering a cylindrical bar made of an incompressible isotropic solid with an axisymmetric distribution of shear eigenstrains.

PostDoc position

Submitted by dmitri_vasiukov on

Postdoctoral position is open at the "Technologie des Polymères et Composites & Ingénierie Mécanique" (MINES-Douai, France). This project is a part of the European project JOIN'EM. Candidate is expected to conduct enriched FEM simulation and should have strong background in the mechanics of composites (multi-scale modelling and fatigue damage). The following experience is expected from the candidate, i.e. coding and/or scripting, fatigue damage simulation and material model development (ABAQUS/UMAT). 

Discussion of fracture paper #12 - Crack paths and fracture process region autonomy

Submitted by ESIS on

Cracks typically follow paths that locally give a mode I crack tip load. At mixed modes crack are extended via a kink in a direction that locally restores mode I. In isotropic materials this is known to more or less, true for static and dynamic loads. Exceptions are cracks that are subjected to high compressive load, e.g., at contact between train wheels and rails or at cracks caused by seismic movements. Other exceptions are cracks growing in anisotropic materials, at grain boundaries or other weak, or by deformation weakened, interfaces. 

The recently published 

2 Postdoc Positions in the National University of Singapore, on the Generalized Continuum Modeling of tailor-made Auxetics

Submitted by L.H.Poh on

We are seeking 2 post-doctoral fellows to work on the development of the auxetic material, its prototyping, the theoretical model and experimental validation.

The project will be based in the National University of Singapore, done in close collaborations with Professor Samuel Forest (Mines ParisTech) and A/Professor Justin Dirrenberger (Conservatoire National des Arts et Métiers). There will be short visits to France to work with the collaborators' groups.