User login

MichelleLOyen's picture

New Book "Tissue Mechanics"

A new book, "Tissue Mechanics" by SC Cowin and SB Doty is of potential interest to those from a classical mechanics background considering work in biomechanics. Downloadable versions of the first two chapters are available at the book's website along with a full table of contents and other supplemental information.

Xiaodong Li's picture

Experimental Nanomechanics

Choose a channel featured in the header of iMechanica: 

Colleagues and friends,

DEPARTMENT CHAIR: San Diego State University, Department of Mechanical Engineering

The Department of Mechanical Engineering invites applications and nominations for the position of Department Chairperson to begin in Fall 2007.

Applicants must hold an earned PhD in Mechanical Engineering or closely related discipline. A record of leadership showing interpersonal skills and organizational ability, strong research background and funding records with recognized professional accomplishments in mechanical engineering, demonstrated ability to interact with industry, and a commitment to excellence in teaching at both undergraduate and graduate levels are required. Mechanical Engineering is one of four departments in the College of Engineering at San Diego State University with an EAC, ABET-accredited B.S. degree program in Mechanical Engineering, as well as M.S. and Ph.D. programs involving students in leading edge research.

Kyung-Suk Kim's picture

Heritage for Experimental Mechanicians

On July 16, 1976, when I was writing my very first paper in U.S. with my lab senior Dr. Prashant Kumar and thesis advisor Professor Rodney J. Clifton to the Journal of Applied Physics, Professor Clifton put a copy of an article on my desk while I was away. The article was "Advice to Young Physicists" by Walther Bothe. It was translated from German to English in Physics Today, September, 1958. I do not know whether this advice still holds for the whole; however, I believe that most of the advice is still valuable for anyone, in particular, an experimentalist, who undertakes a piece of scientific work. Therefore, I would like to share his advice with the society of iMechanica by recollecting it here. - K.-S. Kim

Non linear cell mechanics

Ex-vivo measure of stress-strain relationships in populations of living adherent cells by means of ligand-coated ferromagnetic microbeads (mean diameter: 4.5 µm) attached to the transmembrane mechanoreceptors which are linked to the cytoskeleton (CSK), reveal non linear cell mechanical behavior. However, this non linear cell mechanical behaviour is subjected to controversy for various reasons. First, it has not been systematically found. Results seem to depend on the micromanipulation method used and/or the cell type.

Zhigang Suo's picture

What is Grid Computing? How can it be important to mechanicians? When?

At the suggestion of Joy Sircar, the Chief Technology Officer at the School of Engineering and Applied Sciences, of Harvard University, iMechanica has just added a forum called Technology Corner. As Joy has framed it, this new forum intends to host conversations on software and hardware technologies that might be relevant to mechanicians.

Here is a question I have. Lately I've heard the phrase Grid Computing a number of times. It is about networking lots of computers and other electronic devices, and supply users with computing power like supplying electricity. That is, computing power will become a utility. One might even hope software will also become utilities. Some people say that Grid Computing will happen in just a few years, or may be already here. Here is a collection of essays in Nature on 2020 Future of Computing.

Weixu Zhang's picture

Effect of surface energy on the yield strength of nanoporous materials

This is a very rough manuscript but including the original material we used. Any criticism or suggestion is welcome. The only aim of this letter is to reflect the multi-effect of surface energy on material or structure in nanosize scale. Here we report the effect of surface energy on the yield strength of nanoporous materials. The conventional micromechanics method is extended to consider the surface effect and expression of effective yield surface of nanoporous materials in complex stress state is derived.

Northwestern University: Faculty Position in Mechanical Engineering

The Department of Mechanical Engineering at Northwestern University invites applications for a tenure track faculty position in the area of micro- and nano-scale devices, systems and related phenomena, though outstanding candidates in other research areas will be considered. The candidate should have a PhD in engineering or science, demonstrated excellence in research, and will be expected to develop innovative research and teaching programs in an interdisciplinary environment.

Pradeep Sharma's picture

Call for Future Monthly Themes for the J-Club


As you may have already gathered from previous posts, J-club is set to launch on January 2007. Michelle Oyen has agreed to be the first guest editor/host (----does anyone remeber what nomenclature we decided on?). Her selected theme is "Biomechanics" followed by John Dolbow who will design the February issue on "Computational mechanics".

Nanshu Lu's picture


By George A. Hazelrigg, National Science Foundation

I have been an NSF program director for 18 years. During this time, I have personally administered the review of some 3,000 proposals and been involved in the review of perhaps another 10,000. Through this experience, I have come to see that often there are real differences between winning proposals and losing proposals. The differences are clear. Largely, they are not subjective differences or differences of quality; to a large extent, losing proposals are just plain missing elements that are found in winning proposals. Although I have known this for some time, a recent experience reinforced it.


I posted this survey in Applied Mechanics Research and Researchers on 16 April 2006, based on a survey of Web of Science. A paper making the list satisfied the following conditions:

  • It is in the areas of solid mechanics, mechanics of materials, or computational mechanics, and
  • It has at least 1000 citations.

This list may not be complete. If anyone finds a missing entry, please leave a comment below.

The cited number has been updated up to 18 Dec. 2006.

Biomaterials faculty position at Lehigh University

I am chairing the search for a new faculty member in the Materials Science and Engineering Department at Lehigh. As you will see in the ad below, the position is in the Biomaterials area. I would like to encourage more applications from candidates with interests in biomechanics (so I will have good opportunities to collaborate), and would like to invite applicants from this forum. If you are not personally in a position to apply, please pass the announcement along to anyone you know who might be suitable.

Xiaodong Li's picture

Nanostructured Metals Reveal Their Secret Strengthening Mechanisms

It is well known that metals are hardened by deformation and soften by annealing. How about nanostructured metals? Can we reply on conventional metal-working lore?

Nicolas Cordero's picture

Max Planck Society: Independent Junior Research Group Leader positions

The Max Planck Society (MPS) aims at promoting young international scientists by enabling them to perform their research (in all fields pursued by the MPS) at a Max Planck Institute of their choice.

The MPS offers Independent Junior Research Group Leader positions (W2; equivalent to associate professor level without tenure) granted for a period of 5 years with the option for prolonging twice for 2 years. The deadline for application is January 10, 2007.

MechTube - applied mechanics outreach for children

Hello everyone,

Professor Suo suggested that I share this speculative idea that I once posted on Applied Mechanics News here on iMechanica!

In the future, we would like to reach out to children as early as their elementary school years to get them excited about topics drawn from Applied Mechanics. One approach to this goal takes inspiration from the successful "Le main a la pate", or "hands-in-dough", program in France ( ), but extends the idea of hands-on science to take advantage of the internet.

Some dates of iMechanica

  • 30 March 2007. At a suggestion of Henry Tan, an RSS feed for comments is added as a button"comment at a glance" on the right side of iMechanica.
  • 29 March 2007. An aggregator, "Random readings", is added to the rightside of iMechanica.
  • 7 March 2007. Michelle Oyen posted an entry "Making iMechanica a better global forum".

Intracellular CalciumWaves in Bone Cell Networks Under Single Cell Nanoindentation

In this study, bone cells were successfully cultured into a micropatterned network with dimensions close to that of in vivo osteocyte networks using microcontact printing and self-assembled monolyers (SAMs). The optimal geometric parameters for the formation of these networks were determined in terms of circle diameters and line widths. Bone cells patterned in these networks were also able to form gap junctions with each other, shown by immunofluorescent staining for the gap junction protein connexin 43, as well as the transfer of gap-junction permeable calcein-AM dye.

CFRAC 2007 International Conference on Computational Fracture and Failure of Materials and Structures

If you are interested by the computational aspects of fracture and failure of materials and structures,there is a dedicated conference for you : CFRAC 2007, which will be held in Nantes, France, 11-13 June 2007. It is an thematic conference of the European Community in Computational Methods in Applied Sciences (ECCOMAS). The for abstract is now closed. This conference wil involve a certian number

No need to worry about gravity at the atomic-/nano-scale

When a metal is grown onto a substrate of itself (homoepitaxy), the growth front is typically smooth, or at most is roughened by the formation of shallow hills (called surface mounds). The underlying reason for the roughening has been recognized to be of kinetic nature: Atoms landed on an upper terrace do not have enough time to overcome the "road blocks" provided by the steps and fill all the valleys (known as the Villian instability).

Molecular and Cellular Biomechanics Journal

A new journal dedicated to the field of Molecular and Cellular Biomechanics has been formed for about a year. Many members in this community (such as Ning Wang, Cheng Zhu, Phil LeDuc) are on the board of editors. You may want to check it out....

Zhigang Suo's picture

Some numbers of iMechanica

  • The number of registered users is 6037
  • The number of posts is 2896 (You can see the current number by clicking the newest post).
  • The number of comments is 6943 (You can see the current number by clicking the newest comment.)

Last updated on 19 March 2008

Related post: Some dates of iMechanica


Subscribe to iMechanica RSS Subscribe to iMechanica - All comments

Recent comments

More comments


Subscribe to Syndicate