I am searching for a tutorial or a book which looks into molecular
dynamics method from a Solid Mechanics point of view. All I can find are
the books written for biophysicists or chemistry. I can find lot of
examples on fluids, biomolecules or polymers but none of them are on
simple solids or metals.

Can anyone suggests me a book or a tutorial which can get me ready to
write a program to simulate a simple tensile test of a metal wire (FCC
Al or some simple crystal).

I am searching for a tutorial or a book which looks into molecular dynamics method from a Solid Mechanics point of view. All I can find are the books written for biophysicists or chemistry. I can find lot of examples on fluids, biomolecules or polymers but none of them are on simple solids or metals.

Can anyone suggests me a book or a tutorial which can get me ready to write a program to simulate a simple tensile test of a metal wire (FCC Al or some simple crystal).

(to appear in International Journal of Fracture; Proceedings of the 5th Intl. Symposium on Defect andMaterial Mechanics)

Amit Acharya and Claude Fressengeas

The duality between terminating discontinuities of fields and the incompatibilities of their gradients is used to define a coupled dynamics of the discontinuities of the elastic displacement field and its gradient. The theory goes beyond standard translational and rotational Volterra defects (dislocations and disclinations) by introducing and physically grounding the concept of generalized disclinations in solids without a fundamental rotational kinematic degree of freedom (e.g. directors). All considered incompatibilities have the geometric meaning of a density of lines carrying appropriate topological charge, and a conservation argument provides for natural physical laws for their dynamics. Thermodynamic guidance provides the driving forces conjugate to the kinematic objects characterizing the defect motions, as well as admissible constitutive relations for stress and couple stress. We show that even though 'higher-order' kinematic objects are involved in the specific free energy, couple stresses may not be required in the mechanical description in particular cases. The resulting models are capable of addressing the evolution of defect microstructures under stress with the intent of understanding dislocation plasticity in the presence of phase transformation and grain boundary dynamics.

 In countries with a moderate seismic hazard, the classical methods
developed for strong motion prone countries to estimate the seismic
behaviour and subsequent vulnerability of existing buildings are often
inadequate and not financially realistic. The main goals of this paper
are to show how the modal analysis can contribute to the understanding
of the seismic building response and the good relevancy of a modal model
based on ambient vibrations for estimating the structural deformation
under weak earthquakes. We describe the application of an enhanced modal
analysis technique (frequency domain decomposition) to process ambient
vibration recordings taken at the Grenoble City Hall building (France).

Location: Ecole Normale Supérieure de Cachan, LMT Cachan, South of Paris, France
Duration: 18 month
Starting date: Between March 2011 and September 2011
Scholarship: €2000/month

Contacts:     

I'm having problem with the following problem. The encircled portion of the figure is giving me trouble. I am getting confused on how to correlate it with reference frame oxyz. please help.

what is the significance of distance r for calculating angular velocity of the reference axis oxyz?

 
I need to find out the components of the absolute acceleration of O along ox,oy& oz.

The group of Mechanics of Solids and Structures at the  University of
Brescia is seeking two candidates for Ph.D. positions. The appointment
is starting on January 1st 2011, application deadline Sept. 15th 2010.

The research topics involve: computational dynamics of solids with
reference to ground motion simulation due to seismic input, multiscale
computational fracture mechanics and discrete dislocation mechanics.

Interested applicants are welcome to send a resume to

ARC and CRC APAI PhD Scholarships in Rail Engineering

SEE THE ATTACHED FILE FOR DETAILS

                                            UPDATED May, 2010

The University of Michigan (UM) and Shanghai Jiao Tong University (SJTU) have established a Joint Institute (JI) in Shanghai with a commitment to build a world-class academic research and educational institution. The UM-SJTU Joint Institute invites applications for tenure-track (Assistant, Associate, and Full Professor) positions in all emerging fields of engineering with emphasis on mechanical and electrical/computer engineering. These positions are open to top caliber applicants from around the world. With its unique academic mission in China and connection to SJTU's established research, the JI offers faculty extraordinary opportunities to develop major research programs.

The ADINA System offers comprehensive capabilities for linear and nonlinear finite element analysis of solids & structures, CFD, fluid-structure interactions, multiphysics, and complete pre- and post-processing with interfaces to various CAD and CAE systems. It also offers user subroutines for material models, elements, loads...

Please find attached the position description

Lecturers - University of Michigan-Shanghai Jiao Tong University Joint Institute

The University of Michigan (UM) and Shanghai Jiao Tong University (SJTU) have established a Joint Institute (JI) in Shanghai with a commitment to build a world-class academic institution with educational and research missions. The UM-SJTU Joint Institute invites applications for lecturers in several disciplines. With its unique academic mission in China, the JI offers an extraordinary academic environment. The JI has been given a high degree of autonomy to model itself on world-class US universities. The students are among China’s best.

Please see the attached file of the 1st announcement.

One PhD scholarship (only for European citizens), funded by the Spanish local government of Andalucia, is currently available in the Department of Structures and Construction at the University of Seville (Spain). The PhD position is associated to the Project “Partitioned formulations for dynamic and contact problems” with Professor Ramon Abascal and Professor Jose A. Gonzalez (japerez@esi.us.es) as principal researchers.

Short-pitch rail corrugation: a possible resonance-free regime as a step forward to explain the “enigma”?  Wear, In Press, Accepted Manuscript, Available online 7 December 2008
L. Afferrante, M. Ciavarella

Professor Ed Berger, Univeristy of Virginia Mechanical Engineering, is featured in the Chronicle of Higher Education for his use of web technologies and, in particular, "video solutions" for teaching undergraduate mechanics courses. See http://chronicle.com/weekly/v54/i34/era01301.htm.  Or contact Berger at berger@virginia.edu.  Ed hasn't used this approach for all undergraduate mechanics courses as yet, but the potential is there. 

Please see attachment for details of Computational Mechanics researcher openings at Industrial Research (www.irl.cri.nz), a Crown Research Institute in beautiful New Zealand.

The role involves the application of advanced modeling and simulation methods to research on solids and structures, with an emphasis on complex systems such as composites and meta-materials, or solids with multiple defects and discontinuities.

The position is research oriented but also provides opportunities to consult with industry on commercial projects.

Candidates with expertise in theory and computation of elastic wave propagation, the mechanical behavior of composites, structural dynamics, or acoustics are encouraged to apply.

You are cordially invited to submit an abstract to the symposium on “Emerging Methods To Understand Mechanical Behavior” at 2008 TMS annual meeting, New Orleans, LA, March 9-13, 2008.  

I want to communicate with all members in this forum.

Thanks

       Danel Bernoulli, the most successful of all the Bernoulli's was born in Groningen, The Netherlands on 8th February in 1700. His father Johann Bernoulli was working as professor of Mathematics at Groningen then.  Later they moved to Basel, Switzerland which was their native place.

      Daniel did his PhD in Medicine as Johann insisted him to do so. But, as Daniel was ver much interested in mathematics he was learning math while doing medicine. He also worked with another great mathematician Leohnard Euler (who was a student of Johann Bernoulli in Basel) in St. Petersburg. 

Rui Huang and Se Hyuk Im, Physical Review E 74, 026214 (2006).

A stressed thin film on a soft substrate can develop complex wrinkle patterns. The onset of wrinkling and initial growth is well described by a linear perturbation analysis, and the equilibrium wrinkles can be analyzed using an energy approach. In between, the wrinkle pattern undergoes a coarsening process with a peculiar dynamics. By using a proper scaling and two-dimensional numerical simulations, this paper develops a quantitative understanding of the wrinkling dynamics from initial growth through coarsening till equilibrium. It is found that, during the initial growth, a stress-dependent wavelength is selected and the wrinkle amplitude grows exponentially over time. During coarsening, both the wrinkle wavelength and amplitude increases, following a simple scaling law under uniaxial compression. Slightly different dynamics is observed under equi-biaxial stresses, which starts with a faster coarsening rate before asymptotically approaching the same scaling under uniaxial stresses. At equilibrium, a parallel stripe pattern is obtained under uniaxial stresses and a labyrinth pattern under equi-biaxial stresses. Both have the same wavelength, independent of the initial stress. On the other hand, the wrinkle amplitude depends on the initial stress state, which is higher under an equi-biaxial stress than that under a uniaxial stress of the same magnitude.