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finite element analysis

STRESS TRIAXIALITY

Dear ALL,

Which reading material/source that describes the good understanding of stress triaxiality?

What is the role of stress triaxiality for FE analyst?

I have read a lot of papers/articles but still have confusing me on the fundamental of stress triaxiality.

 

Application Engineer in Solids and Structures

ADINA R & D is seeking an Application Engineer with a strong background in solid mechanics and finite element analysis to help develop the ADINA market and support customers.

Selection of element bsed on the location in abaqus using python script.

Hi
I'm facing problem while writing a script for a parametric study.
After changing the each parameter the model changes and and the loaction of the interested element changes based on those parameters.
Also the element number changes.
Is there any command in python script to choose the elements based on the location ? 

Thank you in advance

Rajesh Kumar

Looking for a postdoc position in US

Hi, all,

I am Kun Luan, a doctoral graduate from China. I am now looking for a postdoc position in damage tolerance, failure analysis, and fracture mechanics for composite materials, and advanced numerical methods for structural analysis. I already got my PhD degree of engineering in March 26,2014.  

wave propogation in with non local deformation

I have a one dimensional bar with a triangular pulse given at one end for 2 microseconds. The boundary conditions are free-free.I am having two cases. One in which the deformation is local (Hooke's law) and other in which the deformation is dependent on a kernel of radius r (say 5* element length).I find that the wave speed is higher when the deformation is non-local as compared to local deformation case. Is this correct? Is there a way to verify the solution?

Evading the strength-ductility trade-off dilemma in steel through gradient hierarchical nanotwins

It is a long-standing goal in metallurgy to enhance the strength of materials without sacrificing ductility. In a recent article in Nature Communications, we reported an effective way to evade the strength-ductility trade-off dilemma in twin-induced plasticity steel.

Online finite element analysis of nanoindentation (indentation)

Dear All, 

 

We (the NanoBIO Node at Illinois ) have a preliminary release of an online finite element analysis of nanoindentation (indentation) tool using FEAP

This preliminary release is limited to linear elastic material, axisymmetric geometry, spherical rigid indenter, and various boundary conditions. 

Is the CST element more accurate than bilinear element (Q4) for bending problems?

I did a 2D beam bending problem with CST and Q4 element, respectively. CST gives better accuracy. Is it due to the shear locking effect with Q4?

Comparing experimental fracture properties and micromechanical (or global-local/multiscale) finite element simulations

I am interested in developing a global-local finite element model (micro/macro) to simulate flexural testing of a composite material. Flexural loading will be applied on global model (macro) and crack propagation will be simulated in the local model (micro). I want to compare stress intensity factor or any other fracture property obtained from local model (micro) with that of experimental results.

I would appreciate if anyone could suggest some references/literature in this area. Any kind of suggestions would be great!

 Venkata

Ajit R. Jadhav's picture

MWR for the first- and third-order differential equations

Hi all,

In engineering sciences, we usually end up using either the second- or the fourth-order differential equations, and the MWR (the method of weighted residuals) works pretty well for them.

The question is: how about the first- and the third-order differential equations? Why don't we see any applications of MWR for these odd-ordered differential equations? What gives?

Reverse Engineering Ants for Robotics

New research is emerging out of a project where Ohio State University used our software to reconstruct the anatomy of an ant neck. In this project, micro-CT scans of an ant neck were reconstructed using Simpleware software and exported as a mesh for analysis in Abaqus.

Job Opportunity: FEA Analyst at Baxter China


Dear Colleagues,

The engineering analysis group at Baxter Healthcare has an immediate opening for an FEA analyst at the Senior Principal Engineer level. The person will work from the Baxter R&D facility in Suzhou, China, and report to the manager of analysis group in Round Lake, IL.

Enclosed is the job description. Interested candidates please apply at http://lnkd.in/bzHxzsy.

Thank you!

Rui He

 

= Job Description =

 

Postdoc position at Ecole Centrale de Nantes in France

A Postdoc position on “Risk-based Selection of Constitutive Models for Geotechnical Analysis” is open at Ecole Centrale de Nantes in France. Fore more details, see the attached pdf file.

Payam Soltani's picture

Effect of geometric parameters on the stress distribution in Al 2024-T3 single-lap bolted joints- Outstanding Paper Award Winner

 The article entitled “Effect of geometric parameters on the stress distribution in Al 2024-T3 single-lap bolted joints” published in International Journal of Structural Integrity 

has been chosen as an Outstanding Paper Award Winner at the Literati Network Awards for Excellence 2013.

Moredetails can be found :

Project Associate / PhD Positions: Multiscale Simulation of Nano-Composites for Fatigue & Fracture

Applications are invited for few open positions in the area of
multiscale simulation of fatigue and fracture of advanced alloys and
nano-material based composites. Primary focus of this research is investigation
of fatigue and fracture behavior of nanomaterials and to develope various
constitutive models for continuum, based on large scale atomistic simulations.
Research effort will include development of analysis and design methods toward
improving material/structural behaviour using computer simulation. Interested
candidates should have preferably MTech/ME degree in
mechanical/civil/aerospace/material engineering discipline with good knowledge

Amir Abdollahi's picture

Three-dimensional simulation of crack propagation in ferroelectric polycrystals: Effect of combined toughening mechanisms

We simulate the fracture processes of ferroelectric polycrystals in
three dimensions using a phase-field model. In this model, the grain
boundaries, cracks and ferroelectric domain walls are represented in a
diffuse way by three phase-fields. We thereby avoid the difficulty of
tracking the interfaces in three dimensions. The resulting model can
capture complex interactions between the crack and the polycrystalline
and ferroelectric domain  microstructures. The simulation results show
the effect of the microstructures on the fracture response of the
material. Crack deflection, crack bridging, crack branching and
ferroelastic domain switching are observed to act as the main fracture
toughening mechanisms in ferroelectric polycrystals. Our fully 3-D

Ali Tamijani's picture

PhD position in Computational Structural Mechanics at Embry-Riddle Aeronautical University

We are currently looking for a PhD
student in the area of Computational Structural Mechanics. PhD applicants with a MS degree and publication in the area of solid mechanics,
computational mechanics and finite element analysis will be preferred.

Please send your application (including
CV and representative publications) to ali.tamijani@erau.edu
by November 1st 2013.

Fixation and Mechanical Properties of Implanted Cartilage Replacements - Overview of three recently published papers

Partial- and
full-thickness cartilage lesions of the knee caused by trauma, disease or joint
instability are a common disorder affecting people of all ages. Implanted
cartilage replacements (ICR) have the potential to overcome the limitations of
conventional treatment methods and are a promising approach to restore
functionality of the joint. In spite of some success in engineering
cartilaginous tissue, inferior biomechanical and biochemical properties of ICR
compared to native articular cartilage (AC) and inadequate quality of fixation

Amir Abdollahi's picture

Conducting crack propagation driven by electric fields in ferroelectric ceramics

This is a recent article in Acta Materialia on the propagation of conducting cracks in ferroelectric ceramics

Title: Conducting crack propagation driven by electric fields in ferroelectric ceramics

Authors: Amir Abdollahi and Irene Arias, Universitat Politecnica de Catalunya (UPC), Barcelona

Abstract:

Kewei Li's picture

Postdoctoral Fellow Position in Cardiovascular Mechanics

Postdoctoral Fellow Position

Tissue Mechanics Laboratory
Wallace H Coulter Department of Biomedical Engineering
Georgia Institute of Technology

mdbrandy's picture

Computational Solid Mechanics Research Engineer - Champaign, IL

Position
Opening — Immediate Availability

Computational Solid Mechanics Research
Engineer

                                                                                                                                             

Engineering and Scientific Simulation Consultant


We are looking for a full time Engineer to assist with
simulation and analysis of nonlinear problems, sometimes with multiphysics
content. Responsibilities include engineering analysis and design. Ph.D. or
Masters Degree in mechanical engineering, chemical engineering, aeronautical
engineering, or physics with some industrial experience preferred. Strong
academic record and references necessary. Experience with finite element method
necessary, and experience with Abaqus or COMSOL desirable. Will collaborate
with other engineers on a range of engineering projects that require strong

Abaqus 6.13 - Live Webinar July 23

Abaqus 6.13 - Live Webinar! July 23, 9am EDT and 12 pm EDT. The latest release, Abaqus 6.13 delivers a number of powerful, customer-requested enhancements for modeling, meshing, visualization, contact, mechanics, and performance. These improvements enable customers to reduce development time and costs, while increasing the efficiency of the product development process through highly accurate simulations of real-world product and material behavior.

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