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Simulation-based numerical optimization of arc welding process for reduced distortion in welded structures

Submitted by Mohammad Refat… on

This paper presents an effective numerical approach for welding process
parameter optimization to minimize weld-induced distortion in
structures. A numerical optimization framework based on coupled Genetic
Algorithm (GA) and Finite Element Analysis (FEA) is developed and
implemented for a low and a high fidelity model. Classical weakly
coupled thermo-mechanical analysis with thermo-elasto-plastic
assumptions is carried out for distortion prediction of numerical
models. The search for optimum process parameters is executed by direct
integration of numerical models and GA-based optimization technique. The
developed framework automatically inserts the process parameters into
the simulation models, executes the FE-based welding simulations and

Research Engineer Position in Global Engineering and Materials, Inc. (Princeton, NJ)

Submitted by Ling Liu on

As a close collaborator and active member of Global Engineering and Materials, Inc (GEM), I would like to present you a research and development position at GEM. The information below can also be found in the attached PDF file.   

3rd Tunisian Conference on Mechanics - COTUME’2014

Submitted by bilelsandel on

3rd Tunisian Conference on Mechanics     3ème Congrès Tunisien de Mécanique  COTUME’2014  Second Call for Papers  www.tunimec.com/cotume2014  Dear colleagues;  On behalf of the Organizing Committee of COTUME’2014, it is a great honor for us to welcome you 

Postdoc position in Solid/Computational Mechanics, Politecnico di Milano - Department of Civil and Environmental Engineering

Submitted by StefanoMariani on
Politecnico di Milano 
Department of Civil and Environmental Engineering
Postdoc position in Solid/Computational Mechanics
Fixed term position for up to 18 months
Salary: 25,000 Euro per annum

PhD Studentship in Computational Mechanics of Porous Metallic Materials

Submitted by Szyniszewski Stefan on

We are offering the PhD studentship at the
University of Surrey, and we are looking for enthusiastic and self-motivated candidates.

This project focuses on applications of metallic foams where structural functionality is combined with energy absorption, damping, heat insulation, and noise silencing.

PhD - Dynamics of capsules and polymersomes under flow and in blood

Submitted by mleo on

Date of beginning: to negotiate

Location: IRPHE, Aix-Marseilles University, Marseilles, France

Contact: send your CV to boedec [at] irphe.univ-mrs.fr and leonetti [at] irphe.univ-mrs.fr

Visit https://www.irphe.fr/-Leonetti-Marc,175- for additional informations.

Postdoctoral Position Available at University of Western Ontario, Canada

Submitted by Zhi Yan on

Position is available for a postdoctoral fellow to carry out an industry sponsored project on carbon fiber composite modeling. The contract is initiated for one year, with possible extension if work progresses satisfactorily. The research will focus on



 (1)  micromechanics modeling of elastic and viscoplastic behavior of injection molded carbon fiber composites;



 (2)  homogenization techniques and constitutive model development for vibration, strength and impact simulations of carbon fiber composites.

Effect of vacancy defects on generalized stacking fault energy of fcc metals

Submitted by mohsenzaeem on

http://iopscience.iop.org/0953-8984/26/11/115404/

Molecular dynamics (MD) and density functional theory (DFT) studies were performed to investigate the influence of vacancy defects on generalized stacking fault (GSF) energy of fcc metals.