Blog posts

Continuous transition between traveling mass and traveling oscillator using mixed variables

Submitted by Flavio Stochino on Tue, 10/06/2015 - 08:38

The interaction between cars or trains and bridges has been often described by means of a simplified model consisting of a beam loaded by a traveling mass, or by a traveling oscillator.Among others, two aspects are essential when dealing with masses traveling along flexible vibrating supports: (i) a complete relative kinematics; and (ii) a continuous transition between a traveling mass, rigidly coupled, and a traveling oscillator, elastically coupled with the support.

Impact Force plotting using Abaqus/Explicit

Submitted by davm5 on Tue, 10/06/2015 - 05:11

# Finite Element modeling

discrete element method

abaqus explicit

Abaqus contact problem

Hello Everyone

I am trying to simulate material dumping process from shovel onto mining dump truck. And for that i am using Abaqus/Explicit. When i plot the contact force of material falling onto truck body under gravity, it gives me the maximum value of 0.12e+11, where as a simple theoretical analysis shows that the resulting impact force for 100 tons of material falling under gravity should be 9e5 N. I am not been able to understand the reason that why Abaqus /Explicit is exaggerating the impact/contact force so much. And i dont know how to correct this thing.

Faculty Search in the Department of Mechanical Engineering, Johns Hopkins University

Submitted by Sung Hoon Kang on Mon, 10/05/2015 - 21:14

faculty openings

mechanical engineering

Hopkins Extreme Materials Institute

Johns Hopkins University

Faculty Search in the Department of Mechanical Engineering, Johns Hopkins University

Open Postdoctoral Fellow/Research Associate position in computational modeling of the eye

Submitted by Ali_Vahdati on Mon, 10/05/2015 - 14:38

job

Postdoctoral fellow or Research Associate position is available immediately at the Cleveland Clinic, Cleveland, Ohio. We are seeking a highly motivated, independent, and creative individual with a Ph.D. in Biomechanics, Mechanical Engineering or Biomedical Engineering.

The candidate is responsible for ocular/soft tissue computational modeling in the Ocular Biomechanics and Imaging Laboratory of the Cole Eye Institute.

Core responsibilities include:

Numerical Methods in the Mechanics of Generalized Continua

Submitted by Stephane Bordas on Sun, 10/04/2015 - 19:39

conference

cosserat

Generalized Continuum

Numerical Methods in the Mechanics of Generalized Continua

http://www.eccomas2016.org/content/accepted-minisymposia

Legato-team link: http://legato-team.eu/ms-911-numerical-methods-in-the-mechanics-of-gene…

Link to conference website

ASME AMD Award Nominations 2015

Submitted by Executive Comm… on Sat, 10/03/2015 - 23:05

Applied Mechanics awards

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 Sat, 10/03/2015 - 08:10

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 Sat, 10/03/2015 - 08:03

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 Fri, 10/02/2015 - 14:47

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.