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PhD position - Development of mesoscale hydro-chemo-mechanical (HMC) modeling approach for concrete deterioration.

Objectives

The main aim of this project is to develop a robust computational framework for investigating the hydro-chemo-mechanical aspect of concrete carbonation at meso-scale.

Description

H.Rahnama's picture

Questions About The Relation Between Mindlin's Strain Gradient and Eringen's Nonlocal Linear Elasticity Theories

Here are some definitions which I have in my mind about the hierarchy of field theories of any kind. Please read them and correct me if there is any misunderstanding. Then I shall raise two questions based on this model of thought about the Mindlin's strain gradient and Eringen's nonlocal linear elasticity theories.

Jaafar El-Awady's picture

Post-Doctoral Position in Molecular Dynamics Simulations and/or Discrete Dislocation Dynamics Simulations of High Entropy Alloys at Johns Hopkins University

We are soliciting applications from outstanding candidates for a postdoctoral research position in the Computational & Experimental Materials Engineering Laboratory, at the Department of Mechanical Engineering, Johns Hopkins University starting immediately.

The position is available immediately and applications will be reviewed until position is filled. This will be a one year position renewable depending on performance.

Thermally induced residual stress

The residual stress that I am talking about is mostly tensile and thermally induced. The stress is observed on the surface only upto a very small depth in the thickness direction. Is this kind of stress significantly damaging from a fatigue perspective?

Also, what would be effect of the residual on the strength?

Is it possible that some sort stress relaxation could occur and the residual gets dissipated?

Simpleware Talk at U.S. SkyScan Micro-CT Workshop, Aug 23-24 2018

Kimpton Hotel Monaco, Philadelphia, PA

The U.S. SkyScan Micro-CT Workshop, hosted by Micro Photonics and Bruker MicroCT, brings together micro-CT imaging experts and users to share knowledge and experience in advancing methods and technology for micro-CT. The event will provide interactive sessions, as well as instructive presentations on computed tomography, analysis techniques, SkyScan products, and preparing SkyScan image data with Simpleware Software.

Synopsys at the Micro-CT Workshop

Membrane, bending, peak, total stress

What is the significance of these stresses from strength and fatigue perspective. Are these stresses still relevant for results interpretation? Is there a possibility of misinterpretation when using these in gas turbine assesments (or complex designs with thermal and mechanical loading)?

Wenbin Yu's picture

Abstract Submission to ICME Prize Extended to August 24.

The abstract submission to the bi-annual AIAA Integrated Computational Materials Engineering (ICME) Prize) has been extended to August 24. The best project will be selected and honored at 2020 SciTech conference along with $1500 cash award. To participate, you need to submit a description of your project which will be reviewed by the ICME prize committee.

Modeling Soil around pipeline with stiffeners in abaqus

I never worked with stiffeners in abaqus and now I should use theme. I want to model soil around pipeline with stiffeners. The stiffener behavior has 3 nonlinear components (x,y,z direction).

Wafer-recyclable, environment-friendly transfer printing for large-scale thin-film nanoelectronics

Wafer-recyclable, Environment-friendly Transfer Printing for Large-scale Thin-film NanoelectronicsProceedings of the National Academy of Sciences, 2018

Abstract

Project Positions in Fracture Mechanics (IIT Delhi)

I am looking to fill a few project positions in the next couple of months on the following topics in Fracture Mechanics at the Department of Applied Mechanics, Indian Institute of Technology (IIT) Delhi:

Required skills for all positions are excellent fundamentals in solid mechanics and good technical writing skills. Desirable skills are bracketed.

P-1. Molecular dynamics simulation of fracture in amorphous solids (Programming and LAMMPS)

P-2. XFEM simulation of fracture in brittle solids (Programming and FEM)

Tianxiang's picture

Job Opening for a Research Scientist Position in Schlumberger (Cambridge Massachusetts)

Dear iMechanica readers, 

There is a new opening for research scientist position in Schlumberger, located in Cambridge Massachusetts. The position is on the area of physics-based and data-driven simulation of mechanical/fluid/thermal processes. Please feel free to forward the attached job description to others who may be interested.

Thanks.

Regards,

Tianxiang

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Job Title: Research Scientist in Intelligent Automation

Hamid.Akbarzadeh's picture

MSc Position at McGill University

One MSc position is available for Winter 2019 in Mechanical Engineering or Bioresource Engineering Department of McGill University. The research is on the field of “3D printed composites”.

Job Posting Title: Assistant, Associate or Full Professor - Materials Science and Engineering

Agency

Texas A&M Engineering

Department

Materials Science and Engineering

Proposed Minimum Salary

Commensurate

Job Location

College Station, Texas  

Job Posting Title: Assistant, Associate or Full Professor - Materials Science and Engineering

Agency

Texas A&M Engineering

Department

Materials Science and Engineering

Proposed Minimum Salary

Commensurate

Job Location

College Station, Texas  

Emilio Martínez Pañeda's picture

Crack Growth Resistance in Metallic Alloys: The Role of Isotropic Versus Kinematic Hardening

We have always modelled crack propagation under monotonic/static loading in metals assuming isotropic hardening. However, we show that anisotropic/kinematic hardening effects play a significant role due to non-proportional straining with crack advance; the isotropic hardening idealization leads to steady state fracture toughness predictions that could be 50% lower. I hope that some of you find this work interesting.

Emilio Martínez-Pañeda, Norman A. Fleck. Crack Growth Resistance in Metallic Alloys: The Role of Isotropic Versus Kinematic Hardening. 

WCCM-NYC: Meet Synopsys

July 22-27, 2018 – New York Marriott Marquis, Broadway, New York

The 13th World Congress in Computational Mechanics is one of the largest Computational Mechanics gatherings, with an expected participation from all parts of the globe, representing multiple sectors, including academia, government and industry. The conference covers a wide range of topics consisting of more than 300 minisymposia.

Synopsys at WCCM 2018

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