Dear Colleagues,

The deadline for submitting an abstract to the international
conference "Fluid and Elasticity 2009" is approaching.

   ABSTRACT SUBMISSION DEADLINE: DEC. 19

To submit your abstract, please follow the instructions on:
https://www.irphe.univ-mrs.fr/%7Efe09/abstracts.html

The following topics will be addressed:
- Aeroelasticity
- Biological internal flows
- Compliant walls
- Elasticity-capillarity coupling
- Flow-induced vibration
- Swimming/Flying
- Swimming of microorganisms
- Wind-plant interaction

    Three assistant researcher/research scientist/postdoctoral positions are available in large 3-year duration, Department of Defense program on “Release and Atmospheric Dispersal of Liquid agents”.  The effort is aiming to the basic understanding of physics of aero-breakup and disperse of liquid agents under hypervelocity incident flows.

    The first opening is in experimental fluid dynamics. The applicant must have background on optics and laser diagnostic techniques (both high-speed and still imaging). Experience in shock tube or high speed wind tunnel is desirable.

The College of Engineering and Mathematical Sciences at the University of Vermont is searching for an outstanding individual to be the Director of the School of Engineering. The School contains four ABET accredited undergraduate degree programs: in Civil, Environmental, Electrical, and Mechanical Engineering, and offers a BS in Engineering Management with the School of Business. The School also offers masters and doctoral programs in Civil & Environmental Engineering, Electrical Engineering, and Mechanical Engineering. There are also interdisciplinary masters programs in Biomedical Engineering and Materials Science with a doctorate in the latter and a proposed doctorate in the former.

ANNOUNCEMENT AND CALL FOR ABSTRACTS. 17th ANNUAL SYMPOSIUM on COMPUTATIONAL METHODS IN ORTHOPAEDIC BIOMECHANICS, http://www.pre-ORS.org, Saturday, February 21st, 2009, University of Nevada, Las Vegas, Las Vegas, Nevada.

Online Registration & Abstract Submission Deadline: December 8, 2008

Hi everyone,

I am using ABAQUS to simulate the soil earth pressure around a buried concrete pipe. Based on reading different threads posted. I knew that there are two ways to simulate the process of excavation and the pipe placement and backfilling.

The first method is to use the ELEMENT COPY command where you duplicate two sets of the elements where the first is assigned the original soil propeties and the copied sets will be assigned the backfilling material properties and the concrete pipe properties. After the MODEL CHANGE command will be used to deactivate and activate elements based on the construction sequence.... This method works for my problem.

Presented at the reception in honor of Professor John W. Hutchinson.  I should explain the context of my remarks. In 1995, Bob McMeeking, having exhausted himself in the endeavor of forming a useful intellect from so little to work with, appealed to a higher power and sent me to Cambridge. The week of my arrival, Prof. Hutchinson surveyed the challenge before him, and responded with the temperate and sage wisdom we have all come to admire: he packed his bags and moved to Denmark....For a whole year.... This action inspired many in mechanics. McMeeking left the country the same year (apparently to recuperate from our time together). Evans apparently entered into negotiations withe the rest of the Ivy League. And John Bassani, unwittingly left holding the bag while on sabbatical at Harvard, enforced a strict policy of my only talking to him on the way to weekly basketball games.

Can any one suggest me book for detailed study for Timoshanko And Euler Burnoulli Beam theory?

Hi all,

     Here I encoutered a error in ABAQUS when I include ALE with VUMAT. When ALE was not included with VUMAT, my job can work well while with the combination of VUMAT and ALE, the job cann't work any more due to a "Signal 8" error. And if I use a built-in material model and at the same time ALE, a job can work. Furthermore, element failure is considered in all of the cases.

    Anyone can give some suggetion? Thanks in advance!

Xinke

The reasons of the failure of initiative the thermonuclear reaction by shock waves

      1.The failure.

The first thermonuclear reaction had realized a half century ago - in the hidrogeneous bomb. It had initiated just by the explosive wave becous of explosion the "atomic fuse" from deviding material. For industrial using of this scheme the power of explosion must diminish in a million times; the "atomic fuse" was not suitable for it. It was needed to search the way to form a system of the shock waves securing on a smoll thermonuclear charge the temperatures the same in a bomb.

We have recently suggested the potential of resonant microcantilever for quantitative study on the kinetics of biomolecular interactions such as protein-protein interaction and DNA hybridization. We have employed the Langmuir kinetic model for describing the molecular interactions on the surface, which leads to change of overall mass of cantilever responsible for resonant frequency shift. Such Langmuir kinetic model dictates the in situ resonant frequency shift due to biomolecular interaction in liquid. This indicates that resonant cantilever is able to provide the information of biochemical reaction. This work was published in Applied Physics Letters in Oct 31, 2008.

Deadline for abstracts is March 15, 2009. 

The conference will provide a forum for presentation and discussion of innovative complex models and methods for computer based simulation of dynamical processes in mechanics. Applications from solid mechanics, fluid mechanics, biomechanics, thermomechanics, and material sciences are welcome. The Conference will mark also 10 years of activities of the Centre for Nonlinear Studies – CENS. During the last decade, the complexity of wave fields in solids and fluids has been one of the focal issues in CENS. One of the key speakers at the Conference will be Prof. Jüri Engelbrecht, the Head of CENS, who will celebrate in 2009 his 70th anniversary.

Linkage Project under Grant from Australian Research Committee (ARC)

Topic: Structure and Properties of Aircraft Alloys Subjected to Equal Channel Angular Processing

 Industrial Partner: The Boeing Corp. Phantom Works, St Louis, USA 

Supervisor: Dr Peter Thomson, Department of Materials Engineering, Monash University 

Enquiries
and Applications: Dr Peter Thomson, Department of Materials
Engineering, Monash University, Wellington Road, Clayton, Victoria
3800, Australia. (Tel: + 61 3 9905 4914. Fax: + 61 3 9905 4940. Email:
peter.thomson@eng.monash.edu.au).

In many aspects of computational simulation there is an element of uncertainty or randomness in problem parameters. This two-year postdoctoral position aims to consider uncertainties for electromagnetism problems. More specifically, a stochastic finite element type of approach would be developed in conjunction with computational electromagnetics. The methodology might involve formulation and solution of stochastic partial differential equations, random eigenvalue problems, random algebraic equation, and random matrices.

Hi everyone,

    I have a question about the objectivity tensor in ABAQUS software. Below is my question.   

There are several  fully funded graduate student openings in the Department of Mechanical and Aerospace Engineering at the Utah State University (http://www.mae.usu.edu). The openings are in the broad area of Computational Solid Mechanics. In particular, applicants having demonstrated interest (in terms of completed projects, authorship in journal articles or coursework) in Fracture Mechanics are especially invited. Applicants are requested to complete the online  pre-application (http://www.mae.usu.edu/academics/pre-application.php).

The number of registered users of iMechanica exceeded 10,000 the other day.  The total number of posts is 4379, and the total number of comments 9222.  iMechanica was launched in September 2006, with the following mission:

Colleagues, can I draw your attention to the following position. Closing date is 5th December. If you want to know more about the post or the department feel free to contact me.

Thanks, Charles

Lecturer in Bioengineering

School of Engineering, Durham University, UK

In this recent work, we showed a new design of mechanically flexible and optically semitransparent solar cells with high efficiency. The ultrathin geometry of the microcell together with the neutral plane design enabled the solar cells could be bent to a radius as small as 4.9 mm (the size of a pencil). The position of the silicon neutral plane was given analytically, which provides a criterion for the geometry optimization. The strain in the silicon was shown to be much smaller than the failure strain by both theoretical analysis and finite element simulations. User-definable transparency feature was also obtained by utilization of optical concentrator and sparse layout of microcells. The mechanical flexibility and optical transparency imply it's broad applications on clothes, buildings and cars.  This work was featured on the cover of November, 2008 issue of Nature Materials.

Hi all!

I read that the "cmplementary starin energy of a structure is not equal to sum of the complementary strain energies of it's components, if there is non-linearity like geometric"

That means for e.g. if I consider a truss stucture subjected to loading so that it undergoes geometric non-linearity, then the sum of the complementary strain energies from members is not equal to complementary strain energy of the structure.

 I request somebody to explain why is it so??

 Thanks and regards,

- Ramdas