User login

2007 Timoshenko Medal Acceptance Speech by Thomas J.R. Hughes

Tom Hughes wins the 2007 Timoshenko MedalApplied Mechanics Division Banquet, Sheraton Hotel, Seattle, Washington, November 13th, 2007.

Subject Guides from the IMechE

In order to try and get some of the vast store of engineering information we're sitting on out to a wider audience we've created a number of occasional subject guides for engineers and students. The aim is to highlight sources of information available from our Library and the Institution itself.

You can see an example of one of these (for the aerospace industry) here, from which you can browse to a whole host of others.

Investing in Alternative Energy

Please note the website and bookings page for the 2nd Investing in Alternative Energy event 1 February 2008, IMechE can be found at:

The official brochure will be available shortly.

Further information

Relationship between Hardness and Elastic modulus?

What is the relationship between hardness and elastic modulus? The higher hardness, the higher elastic modulus?  My understanding is that hardness is a local mechanical property, and 
elastic modulus is an averaged global mechanical property.  Am I right about this? 

Free Online Access to latest Mathematics and Mechanics research until November 30, 2007

As a courtesy to mechanical professionals and academics at large, I would like to inform you about the current free access period to mechanical research including the following journals:

Journal of Damage Mechanics
Mathematics and Mechanics of Solids

From now until November 30, 2007, you can access any materials science, mechanics or engineering journals online (from volume 1, issue 1 to current) free of charge!

Dean Eastbury's picture

Reminder - abstract submission date for 3rd IC Engineering Failure Analysis

The abstract submission deadline for this next conference in the biennial Engineering Failure Analysis series ( is 30 November 2007.

The conference will take place in the coastal town of Sitges, just a short distance from Barcelona's international airport, from 13 to 16 July 2008.    

Postdoctoral Positions in Cell Biomechanics at Harvard

The Disease Biophysics Group in the School of Engineering and Applied Sciences has a postdoctoral fellowship available for PhD/DSc scientists with backgrounds in cellular biomechanics.  The applicants should have training in cell tissue culture, microscopy, and assays for probing the mechanical properties of cells, such as traction force microscopy, atomic force microscopy, and/or the use of magnetic tweezers.

 Applicants should forward their CV (pdf) and examples of up to three manuscripts (pdf). Please have three references emailed to Professor Parker directly.

Robert Gracie's picture

Post-Doctoral Fellowships with Dr. T. Belytschko at Northwestern University

We are no longer accepting applications for these positions.  Qualified applicants will be contacted in the near future.  

Thank you for your interest,

 Robert Gracie 


For a nanosystem the second law of thermodynamics is still effective

For a nanosystem,the total number of atoms(say less than 100),I want to knom In such a system the second law of thermodynamics is still effective ?

Carl T. Herakovich's picture

Education in Mechanics - Call for papers

Call for Papers on Education in Mechanics

22nd International Congress on Theoretical and Applied Mechanics (ICTAM 2008)

Adelaide, Australia, August 24 – 30, 2008

Web page: 

Two Doctoral Research Positions Available in the Cornell Fracture Group

The Cornell Fracture Group (CFG) has 2 new PhD student positions open on NASA-sponsored projects.

NASA Constellation University Institutes Project:  Develop a hierarchical, multi-scale simulator for damage tolerance and durability of advanced composite structures.

NASA Integrated Resilient Aircraft Control Project:  Develop a simulation capability to determine residual strength of damaged aircraft structure.

Cell mechanics workshop

The Center for Cellular Mechanics at U of Illinois has recently hosted a week long summer workshop on Cell Mechano Sensitivity (July 30-Aug 3, 2007. The workshop had lectures in the morning an hands on-labs in the aternoons. All the lectures are on the web (with slides and video). They include a large collection of references. The web also has the laboratory protocols for cell culture, cell fixing and staining, single molecule detection, florescence microscopy, and much more. Visit the website:  

Large elastic strain - limits of Green strain

I am looking at problems of large deformation and large elastic strain in biological materials, using an analytical model that determines the current deformed state in a single step from the original undeformed state. The approach is to propose a strain energy function to allow the calculation of Piola-Kirchhoff 2 stresses which may then be converted to true Cauchy stresses via the usual mapping. Since I initially calculate PK2 stresses, the strain energy function must be a function of Green strain.

Harold S. Park's picture

Journal Club November 2007: Surface Effects on Nanomaterials

Nanoscale materials, including thin films, quantum dots, nanowires, nanobelts, etc – are all structurally unique because they have a relatively high ratio of surface area to volume ratio.  This increase in surface area to volume ratio is important for nanomaterials because wide and unexpected variations in mechanical and other physical properties, such as thermal, electrical and optical, have been found to scale in some proportion to increase in surface area to volume ratio.

Asst. Prof. - Harvard - Mechanical engineering - design

Faculty Opening - Assistant Professor.  Mechanical Engineering - Design, School of Engineering and Applied Sciences, Harvard University

The Harvard School of Engineering and Applied Sciences (HSEAS) seeks applicants for a faculty position as a tenure track assistant professor in the area of mechanical engineering. The ideal candidate will have a strong interest and background in teaching design, as well as outstanding research capabilities. Areas of interest include mechanics and materials (particularly MEMS and NEMS), fluids, mechatronics, robotics, and biomechanics.

Post doctoral position in the area of soft tissue Biomechanics at the Advanced Computational Research Lab, RPI, Troy, USA

Brief description: The Advanced Computational Research Laboratory (,
affiliated with the  Department of Mechanical, Aerospace and Nuclear
Engineering at Rensselaer Polytechnic Institute, Troy, NY, USA invites
applications for a postdoctoral research position to work in the area of in vivo / in situ soft tissue mechanical property estimation and modeling.

Joseph X. Zhou's picture

The story behind the proof of Fermat's Last Theorem

When I came to the institute, my collaborator Kay invited me for a dinner in the new town together with his friend Thilo and other guys. The city is wisely divided into two functioning areas, old town and new town. All the ancient buildings like King’s summer palace, women’s church and opera house are in the old town; while the restaurants, bars and other modern buildings are in the new town. Each is in harmony with its environment and cultural atmosphere.

Zhigang Suo's picture

Harvard School of Engineering and Applied Sciences Reception during the MRS Fall Meeting

You are cordially invited to attend a reception, hosted by Harvard School of Engineering and Applied Sciences, during the MRS Fall Meeting, on Monday, 26 November 2007, from 7:30 pm to 10 pm, at Independence Room East, 2nd Floor, Sheraton Boston Hotel & Towers, 39 Dalton Street, Boston, MA.

Dean Venky Narayanamurti, Joanna Aizenberg, Michael Aziz, Shriram Ramanathan, Frans Spaepen, Zhigang Suo, Joost Vlassak

Kejie Zhao's picture

Multiaxial behavior of nanoporous single crystal copper: a molecular dynamics study

The stress-strain behavior and incipient yield surface of nanoporous single crystal copper are studied by the molecular dynamics (MD) method. The problem is modeled by a periodic unit cell subject to multi-axial loading. The loading induced defect evolution is explored. The incipient yield surfaces are found to be tension-compression asymmetric. For given void volume fraction, apparent size effects in the yield surface are predicted: the smaller behaves stronger.


Subscribe to iMechanica RSS Subscribe to iMechanica - All comments

Recent comments

More comments


Subscribe to Syndicate