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Zhigang Suo's picture

Mechanics of supercooled liquids

In a pure liquid, molecules touch one another but change neighbors frequently.  External forces cause the liquid to change shape by viscous flow.  Thermal agitation causes  molecules to undergo self-diffusion.  The two phenomena--viscous flow and self-diffusion--often result from a single rate-limiting process:  molecules change neighbors.  This simple picture is amply confirmed by the Stokes-Einstein relation, which links the viscosity and self-diffusivity for many liquids over wide ranges of temperature.

PhD and PDF positions in computational mechanics at York University

Vacancies exist for high calibre one PhD student and one postdoctoral fellow to join the Innovative Design and Engineering Analysis Laboratory at York University, starting immediately.
The position’s primary area of research will focus on multi-scale material modelling and optimization.

crack extension curve

Dear all

My project work is in crack analysis, so I used cohesive zone model for crack analysis in Abaqus.I implement the cohesive element in crack path but I don't known how to plot crack extension vs time(load, J-integral) curve.

Pls suggest the procedure for ploting crack extension curve.

 

thanks.

 

 

Post Doctoral Research Position in Experimental Biomechanics at the University of Southampton, UK

The Bioengineering Science Research Group at the University of Southampton invites applications for an 18 month post-doctoral position investigating the mechanical performance of unicondylar knee arthroplasty (UKA). 

mohdfadzli's picture

CALL FOR PAPERS & EXHIBITION: MITC2015

It is our sincere pleasure to invite you to participate in the upcoming Malaysian International Tribology Conference 2015 (MITC2015). For quick information, feel free to watch our teaser at http://youtu.be/HwLON3uIz3MFor more details, you are kindly advice to visit our website at http://mitc2015.mytribos.org

Yu-Xin XIE's picture

Call for abstracts: International Workshop on Pattern Formation in Soft Materials

 

Dear Colleagues,

You are welcome to submit abstracts to the workshop of  "International Workshop on Pattern Formation in Soft Materials" chaired by Prof. Zhigang Suo & Prof. Yibin Fu, which will be held from 1th to 4th of June 2015 in Tianjin, China.  More details could be got by clicking on http://www.iwsm2015.org/. Thanks for your attention.

Best wishes,

Yu-Xin XIE

Cai Wei's picture

Postdoctoral Position Opening at Stanford University

Prof. Wei Cai at the Mechanical Engineering Department of Stanford University is seeking a postdoctoral researcher to lead a project on the modeling of grain structure evolution in the surface layer under friction.  The major task of this project is the development of a phase field model for grain/sub-grain structure evolution under friction.  It is likely that molecular dynamics and dislocation dynamics simulations would be required as well to obtain a good physical understanding of the process.

mohsenzaeem's picture

PhD positions available immediately at Missouri S&T (Rolla)

Two PhD positions are available immediately in the Computational Materials & Mechanics Laboratory at Missouri University of Science and Technology (Rolla):

1.  Density functional theory calculations: Advanced High Strength Steels

2.  Multi-phase field modeling: Boride Ceramics with Improved Fracture Toughness at Elevated Temperatures

 

Candidates should have a master's degree in mechanical engineering, materials science and engineering, solid-state physics, or applied mathematics. Experience in DFT, MD, or phase field modeling is desired.

Jie. Yin's picture

Multiple Open-Rank Faculty Positions in Mechanical Engineering at Temple University

The Department of Mechanical Engineering, Temple University, seeks applications and nominations— for: (i) tenure-track lines at the junior level, and (ii) tenured lines at the senior level.

Arash_Yavari's picture

Differential Complexes in Continuum Mechanics

We study some differential complexes in continuum mechanics that involve both symmetric and non-symmetric second-order tensors. In particular, we show that the tensorial analogue of the standard grad-curl-div complex can simultaneously describe the kinematics and the kinetics of motions of a continuum. The relation between this complex and the de Rham complex allows one to readily derive the necessary and sufficient conditions for the compatibility of the displacement gradient and the existence of stress functions on non-contractible bodies.

Julian J. Rimoli's picture

Faculty Positions in Aerospace Engineering at the Georgia Institute of Technology

The Daniel Guggenheim School of Aerospace Engineering at the Georgia Institute of Technology in Atlanta, GA, invites nominations and applications for five tenure-track faculty positions. Applications are sought from candidates with expertise in the traditional aerospace disciplines, promising new research areas, and cross-cutting interdisciplinary fields. Areas of interest may include, but are not limited to, aerodynamics, design and manufacturing, structures and solid mechanics, and autonomy for aerospace systems.

Wenbin Yu's picture

Micromechanics Simulation Challenge

As the importance of micromechanics is increasingly realized in composites design & manufacturing at the industry level, cdmHUB is launching a Micromechanics Simulation Challenge for the purpose of establishing the best practices for homogenization and dehomogenization needed in composites design and manufacturing.

Markus J. Buehler's picture

MIT Faculty Positions in Civil & Environmental Engineering

The Department of Civil and Environmental Engineering invites applications for several tenure-track faculty positions to begin July 2015 or thereafter.  Appointments will be at the assistant or untenured associate professor level. In special cases, a senior faculty appointment may be possible.  We will consider exceptional candidates in a range of areas, broadly defined.  Further information about the department can be found at this page

Sulin Zhang's picture

PhD positions (TA/RA) available at Penn State

We are looking for PhD candidates to conduct research at the following two interdisciplinary subfields, starting from Spring of 2015. Interested individuals are encouraged to apply (suz10@psu.edu)

1) Mechanics in electrochemistry. We develop atomistically informed continuum mechanics models, coupling mechanics and lithium reaction and diffusion to account for a wide range of in-situ experimental phenoemna. Some recent publications:

abedford's picture

Book on elastic wave propagation

Our book Introduction to Elastic Wave Propagation, originally published by Wiley in 1994, is now in the public domain. The book is attached. We intended it to be suitable for a one-semester course or for self-study by students needing background on elastic waves. (The solutions to the exercises are included.) Chapter 1 can also be used as a concise introduction to linear elasticity.

Anthony Bedford (abedford@mail.utexas.edu)

Douglas S. Drumheller (dsdrumh@q.com)

material grade details

i want to know the material grade which is used in APPLE phones/laptop circuit chassis 

i know that aluminium is used .grade please????

 

Cihan Tekoğlu's picture

Representative Volume Element Calculations under Constant Stress Triaxiality, Lode Parameter, and Shear Ratio

Recent experiments showed that the Lode parameter, which distinguishes between axisymmetric and shear dominated stress states, has a profound effect on material ductility, especially at low stress triaxiality. Consequently, the theoretical framework for void growth and coalescence is currently being revisited, which often involve performing representative volume element (RVE) calculations. The present study investigates an RVE composed of a cubic unit cell containing a spherical void at its center.

Leon Mishnaevsky's picture

Fatigue of multiscale composites with secondary nanoplatelet reinforcement: 3D computational analysis

3D numerical simulations of fatigue damage of multiscale fiber reinforced polymer composites with secondary nanoclay´reinforcement are carried out. Macro–micro FE models of the multiscale composites are generated automatically using Python based software. The effect of the nanoclay reinforcement (localized in the fiber/matrix interface (fiber sizing) and distributed throughout the matrix) on the crack path, damage mechanisms and fatigue behavior is investigated in numerical experiments.

Tenure-Track Faculty Position in Computational Mechanics - The George Wasgington University

The Department of Civil and Environmental Engineering at the George Washington University invites applications for a tenure-track faculty position at the level of Assistant Professor starting fall semester 2015. The primary field of interest is mechanics of geomechanical and structural systems. Applications from women and under-represented minority groups are strongly encouraged. 

Basic Qualifications

Zhigang Suo's picture

Viscosity

The attached notes are written for a course on plasticity.  I will update new posts on my twitter account:  https://twitter.com/zhigangsuo.  

Micromechanical Study of the Interface Properties in Concrete Repair Systems

Hi all,

We've recently published a paper on

Micromechanical Study of the Interface Properties in Concrete Repair Systems

It deals with nanoindentation and numerical simulation of the interface zone in concrete repair systems.

Greetings

Zhigang Suo's picture

Strain hardening

The attached notes are written for a course on plasticity.  I will update new posts on my twitter account:  https://twitter.com/zhigangsuo.  Rheology is the science of deformation. This science poses a question for every material: given a history of stress, how do we find the history of strain?

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