Blog posts
Atomistic simulations for the evolution of a U-shaped dislocation in fcc Al
We show, through MD simulations, a new evolution pattern of the U-shaped dislocation in fcc Al that would enrich the FR mechanism. Direct atomistic investigation indicates that a U-shaped dislocation may behave in different manners when it emits the first dislocation loop by bowing out of an extended dislocation. One manner is that the glissile dislocation segment always bows in the original glide plane, as the conventional FR mechanism. Another is that non-coplanar composite dislocations appear owing to conservative motion of polar dislocation segments, and then bow out along each slip plane, creating a closed helical loop. The motion of these segments involves a cross-slip mechanism by which a dislocation with screw component moves from one slip plane into another. Ultimately, such non-coplanar evolution results in the formation of a FR source.
NEW ERASMUS MUNDUS MASTER COURSE IN COMPUTATIONAL MECHANICS
I am writing to you to bring to your attention a new Master Course on Computational Mechanics, which has been awarded the Erasmus Mundus label.
It is an international Master course given jointly in English by the Universidad Politécnica de Cataluña (Barcelona), University of Wales Swansea), Ecole Centrale Nantes and Universität Stuttgart with the collaboration of CIMNE International Centre for Numerical Methods in Engineering, Barcelona). The Erasmus Mundus program:
Prototype for a journal in iMechanica
Hi fellow mechanicians,
Professor Suo and I have devised a model for creating a journal on iMechanica. It is a simple model which doesn’t require installing any additional modules or features.
We simply let a user be a journal manager, and he selects excellent blog entries as articles to be published in the next issue of the journal. He will then create a blog entry listing the titles of the articles with their respective authors and make each title a link to the original post. This way another user only needs to click on the title of an article to see the full entry.
Back to the Mechanics vs. Biochemistry in Cellular Mechanotransduction
In his interesting response to our comment posted on 11/28, Ning Wang focused on the transmission of a local force generated at the adhesion site(s). We agree that this is a question important to our understanding of the signaling to the nucleus. The question is not only about the range of the force transmission but also about the magnitude of such force because the nucleus is several times stiffer than the cytoskeleton.
A Model for Superplasticity not Controlled By Grain Boundary Sliding
It is commonly assumed that grain boundary sliding can control plastic deformation in fine grained crystalline solids. Superplasticity is often considered to be controlled by grain boundary sliding, for example. I have never accepted that view, though my own opinion is very much at odds with the commonly accepted picture. When I was asked to write a paper in honor of Professor F.R.N. Nabarro's 90th birthday (Prof.
Mechanical Properties of Thin Films (class notes for a graduate class at Stanford University)
The attached file is a set of class notes developed by W.D. Nix of Stanford University and used in a graduate course on Mechanical Properties of Thin Films. These notes have been used in the graduate course MSE 353 since the late 1980's. That course has been taught every year or so since that time. The notes were last updated in January of 2005. The reader will see a note to the effect that many of the figures and illustrations in the file have been taken from the work of students and colleagues at Stanford without proper attribution.
Symposium: Multiscale Multiphysics Modeling and Simulation of Nanomaterials and Nanostructures
McMat 2007, June 3-7, 2007, University of Texas at Austin
Call for paper
Symposium: Multiscale Multiphysics Modeling and Simulation of Nanomaterials and Nanostructures
What Is Mechanics?
So, What is Mechanics? It seems that useful answers ought to depend on who you are talking to. If you are persuading your dean to hire a new faculty member in Mechanics, perhaps you’d like to point out promising research in one area or another, and how foundational mechanics is to the education of future scientists and technologists in (almost) all fields.
How to Make a Free Web Site
In the present time the internet craze has swept the nation and these days everything and everyone is online. Everyone having fun on internet and get knowledge from the web site.
If you want to know how to make a free web site, the good news is that you've set an easy goal for yourself. Learning how to make a free web site is about more than just getting your web domain for free - you need to know how to put information on that site as well. Many domains offering free web sites also feature free online tutorials that will help you write your web pages. Some sites are so user-friendly; you don't have to write any of your own web code at all! You can select colors and font sizes from the domain's own page editing service. When the domain is willing to write your pages for you, it's very easy to learn how to make a free web site.