Mechanics
Mechanics is the paradise of
the mathematical sciences
because by
means of it
one comes to the fruits
of mathematics.
Leonardo da Vinci (1452-1519)
Structure of Defective Crystals at Finite Temperatures: A Quasi-Harmonic Lattice Dynamics Approach
In this paper we extend the classical method of lattice dynamics to defective crystals with partial symmetries. We start by a nominal defect configuration and first relax it statically. Having the static equilibrium configuration, we use a quasiharmonic lattice dynamics approach to approximate the free energy. Finally, the defect structure at a finite temperature is obtained by minimizing the approximate Helmholtz free energy. For higher temperatures we take the relaxed configuration at a lower temperature as the reference configuration.
About interatomic potentials
Hi all,
I am starting to my phd project focusing on developing new interatomic potentials.
Would you please help introduce some of current research trends(such as review paper, existed potentials etc) on this field.
Thanks.
ASME IMECE2010 Symposium on Integrated Structures and Hybrid Materials
The Integrated Structure Technical Committee in the Applied Mechanics Division of ASME invite you to submit an abstract to the Symposium on Mechanics of Integrated Structures and Hybrid Materials in Advanced Technologies at the 2010 ASME International Mechanical Engineering Congress & Exposition (IMECE).
Date: November 12-18, 2010
Venue: Vancouver, British Columbia, Canada.
Career Advice
Forums
Hi I am seeking career advice. I am 31 and looking forward to working professionally on FEM and computational mechanics. When I finished my Meng Mechanical Engineering back in 2005 I worked at an institute (unpaid) and programmed some codes on discrete element method but shortly found a job in a oil engineering company in their stress analysis department. Unfortunately I was never placed in that department because the company had other needs (I was placed in the Material Department as a senior Material engineer)
Potential energy of a string
Hi,
I have to use Hamilton pricinple to evaluate the diff. equation of motion of a string. As shown in the figure below, the string is hanged from one end and is free at the other. The flexural stiffness of the string is negligible.
I have a problem with the potential energy of the string! required in the Hamilton principle. Since the flexural stiffness of the string is assumed to be negligible, is there any other term for potential energy?
Summer Job for Students in Europe: International US-European Joint Study of X-Ray Optics Thermomechanical Stability and Control
Summer Job for Students in Europe: NSF-sponsored International Research Experience for Students (IRES)
International US-European Joint Study of X-Ray Optics Thermomechanical Stability and Control
Crack length in fracture mechanics
Forums
Hi,
Could please any one knows give me an idea about solving a problem which I face for the ages.
I have modelled a beam with a sharp edge at the corner of a rectangular hole with ABAQUS. I have introduced different crack length and using LEFM, I have made some predictions for the failure load of the beam. Now the predicted load is dependent on the crack length. How can I chooose the right crack length?
Thank you
ASME IMECE2010 Symposium on Multifunctional Material Systems
The ASME Multifunctional Materials Technical Committee of the Materials Division is organizing a symposium on Multifunctional Material Systems at IMECE2010 to be held in Vancouver, Canada, during Nov. 12-18, 2010.
Tentative abstract submission deadline: March 1, 2010