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Newton International Fellowships

"The Newton International Fellowship scheme will select the very best early stage post-doctoral researchers from all over the world, and offer support for two years at UK research institutions."

http://www.newtonfellowships.org

If you are interested in applying for a Newton Fellowship at the University of Manchester, meet the criteria specified on the url above, and have a background in:

Buryachenko's picture

Welcome to new background of micromechanics

Dear Colleagues,

 I am please to let you know about the birth of a new background of micromechanics defining a new field of micromechanics called computational analytical micromechanics (CAM). It offers opportunities for a fundamental jump in multiscale research (see the abstract attached, where avalable electronic publications are indicated and encouraged for reading). However, these opportunities can be realized only in the case of joint efforts of both computational micromechanic's society and the analyticalone. I would be happy if CAM piques your attention.

wvmars's picture

Call for Papers - The Tire Society

Final Call for Papers - 28th Annual Conference & Meeting on Tire Science & Technology

September 15 & 16, 2009, Akron City Centre Hotel, Akron, Ohio, USA

 Full details can be found here.

www.tiresociety.org

Note that there is a $500 award for the best student-authored paper.  Details can be found here.

Pradeep Sharma's picture

Book Review

Micromechanics---loosely speaking, is the study of heterogeneities in materials and its consequences for material or continuum behavior. This encompasses studies of inclusions, dislocations, cracks or more generally defects. A related problem is that of "coarse-graining" or in other words the effective homogenized properties of a heterogeneous material. The latter is a recurring theme in all of physical sciences not just solid mechanics. Micromechanics, a formidable subject by all means, dominated a substantial part of the history of solid mechanics. Several of our Timoshenko awardees have been associated with this subject, e.g. Eshelby, Hill, Keller, Irwin, Rice among others.

Mechanobiology post-doctoral position, Oxford, UK

A postdoctoral research position is available immediately at the Mechanobiology Group, Nuffield Department of Orthopaedics, Rheumatologyand Musculoskeletal Sciences at the University of Oxford to study tendon mechanobiology and repair following injury or pathology. This is an exciting opportunity to join a multi-disciplinary team drawn from the Botnar Research Centre, the Oxford Institute of Biomedical Engineering and the John Radcliffe Hospital to work at the forefront of strategically important musculoskeletal research.

Exact relations in the micromechanics of composites

There are several exact relations from the theory of composites that can be used to determine whether a new numerical or analytical approach gives reasonable answers. Here's a paper on some exact relations that I wrote up a long time ago and just recently posted on Scribd. 

any idea about boundary conditions to be used when modelling a unit cell of a foam

Dear friends / distinguished imechanicians,

I am trying to use micromechanics in  foams to numerically compute the elastic constants using one unit cell. I see some literature available when simple unit cell shapes are assumed (like cubical or hexagonal). However there is nothing specific about modelling for tetrakaidecahedral foams. Assuming the right boundary conditions would be critical for computing the constants. I am not able to come up with a reapeating pattern for determining the places to apply the boundary conditions.

Postdoctoral position in Multiscale Modeling

The Computational Solid Mechanics group under the direction of Prof. Marisol Koslowski in the School of Mechanical Engineering at Purdue has an opening for a postdoctoral position in the area of multiscale modeling as part of the project “Plasticity in ultrafine grained materials” funded by DOE. A successful candidate is expected to have a strong background in computational solid mechanics and programming experience. While experience in plasticity using dislocation dynamics or phase field methods is a plus, all outstanding candidates will be considered.

Bent F. Sørensen's picture

PhD position in the area of wood fibre composites

The Materials Research Department at Risø National Laboratory for Sustainable Energy, Technical University of Denmark, is seeking a PhD student within the field of advanced fibre composites. The PhD position will aim at increasing the fundamental knowledge of wood fibres and their behaviour as reinforcements in composite materials studying e.g. wood fibre structure and mechanical and hygroscopic properties e.g. by micromechanical modelling and advanced testing.

ON THE MECHANICS OF HELIX

Helix is a very interesting structure. There are many biopolymers that have a helical structure. 

  • How can someone model the helix in mechanics?
  • How can the helix reinforce a rod? 
  • How does this structure reflect the mechanical properties of biopolymers?

Derivatives of a volume integral with singular kernel

Hi everybody, 

In fact, I encounter this problem in my research and I would be grateful if someone can help. In micro mechanics, there are many problems concerning Green functions, e.g: the displacement is calculated from the distributed force in the domain, etc. Consider the following integral to determine the displacement field.

MichelleLOyen's picture

New Micromechanics Book

This message about a new book came over the PoroNet (poroelasticity network) mailing list:

Dear Colleagues:

      I would like to inform you that my book "Micromechanics of Heterogeneous Materials” (containing around 700 pages, 140 figures, 3000 formulae, and 1200 references) should be published by Springer on 07.06.07. [Details are on the web http://www.springer.com/west/home/engineering?SGWID=4-175-22-173670290-d...|toc ] .

      In the framework of a unique scheme of the proposed multiparticle effective field method, we have undertaken in this book an attempt to analyze the wide class of statical and dynamical, local and nonlocal, linear and nonlinear multiscale problems of composite materials with deterministic (periodic and nonperiodic), random (statistically homogeneous and inhomogeneous, so-called graded) and mixed (periodic structures with random imperfections) structures in bounded and unbounded domains, containing coated or uncoated inclusions of any shape and orientation and subjected to coupled or uncoupled, homogeneous or inhomogeneous external fields of different physical natures.

        Any the remarks and comments regarding the book will be fully appreciated.

Bent F. Sørensen's picture

Interface Design of Polymer Matrix Composites – Mechanics, Chemistry, Modelling and Manufacturing

The 28th Risø International Symposium on Materials Science addresses the whole range from fundamental understanding to industrial applications. Topics include:

  • surface functionalising
  • chemical and physical surface characterisation
  • mechanical characterisation of interfaces
  • micromechanical modelling
  • fibre/matrix debonding
  • sizings effects on composite processing
  • interface aspects and their integration into manufacturing
  • fibre bridging in composites
  • fracture resistance of composite
  • tensile and compressive strength of composite
  • macroscale modelling
  • hole and notch sensitivity

More information, including invited key-note speakers, see web site here.

Micromechanical Exfoliation and Graphene: 1999 papers and brief discussion of them

The discovery of a new material type, graphene and extremely thin platelets of graphite, was discussed in several articles from my research group published in 1999:

Lu XK, Huang H, Nemchuk N, and Ruoff RS, Patterning of highly oriented pyrolytic graphite by oxygen plasma etching, APPLIED PHYSICS LETTERS, 75, 193-195 (1999).

On the thermomechanical coupling of shape memory alloys and shape memory alloys composites

Smart materials have received much attention in recent years, especially due to their various applications in smart structures, medical devices, actuators, space and aeronautics. Among these
materials, shape memory alloys exhibit extremely large, inelastic, recoverable strains (of the order of 10%), resulting from transformation between austenitic and martensitic phases. This
transformation may be induced by a change, either in the applied stress, the temperature, or both.

Liu's picture

Void-induced strain localization at interfaces

We published this paper in APL on a study of the deformation near interfaces. It provides insight in the strain localization at the interface and its influence on the deformation in bulk metals. 

Abstract An optical full-field strain mapping technique has been used to provide direct evidence for the existence of a highly localized strain at the interface of stacked Nb/Nb bilayers during the compression tests loaded normal to the interface. No such strain localization is found in the bulk Nb away from the interface. The strain localization at the interfaces is due to a high void fraction resulting from the rough surfaces of Nb in contact, which prevents the extension of deformation bands in bulk Nb crossing the interface, while no distinguished feature from the stress-strain curve is detected.

Cai Wei's picture

New Book: Computer Simulations of Dislocations, by Vasily V. Bulatov and Wei Cai

Companion web site http://micro.stanford.edu ISBN:0-19-852614-8, Hard cover, 304 pages, Nov. 2006, US $74.50.

This book presents a broad collection of models and computational methods - from atomistic to continuum - applied to crystal dislocations. Its purpose is to help students and researchers in computational materials sciences to acquire practical knowledge of relevant simulation methods. Because their behavior spans multiple length and time scales, crystal dislocations present a common ground for an in-depth discussion of a variety of computational approaches, including their relative strengths, weaknesses and inter-connections. The details of the covered methods are presented in the form of "numerical recipes" and illustrated by case studies. A suite of simulation codes and data files is made available on the book's website to help the reader "to learn-by-doing" through solving the exercise problems offered in the book. This book is part of an Oxford Series on Materials Modelling.

jqu's picture

New Book: Fundamentals of Micromechanics of Solids, by Jianmin Qu and Mohammed Cherkaoui

Fundamentals of Micromechanics of Solids, Jianmin Qu, Mohammed Cherkaoui
ISBN: 0-471-46451-1, Hardcover, 400 pages, August 2006, US $120.00

PART I: LINEAR MICROMECHANICS AND BASIC CONCEPTS

Chapter 1 INTRODUCTION

  • 1.1 Background and Motivation
  • 1.2 Objectives
  • 1.3 Organization of Book
  • 1.4 Notation Conventions
  • References

Chapter 2 BASIC EQUATIONS OF CONTINUUM MECHANICS

Pages

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