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Amit Acharya's picture

Deformation 'Gradient', Right/Left Cauchy Green Compatibility

I post some (hand-written) notes on compatibility conditions for both small and finite strains that I have used for helping me in lecturing. These may be useful for our student friends on imechanica. I also post a paper on compatibility conditions for the Left Cauchy-Green field in three dimensions as well as the paper by Janet Blume on the same subject.

zhan-sheng guo's picture

a book about self healing materials

recommend more references about this topic: S. van der Zwaag Editor, Self Healing Materials-An Alternative Approach to 20 Centuries of Materials Science. Springer, 2007.  about half of this book talk self healing polymers.

Ken P. Chong's picture

EMERGING FRONTIERS IN RESEARCH AND INNOVATION 2009

For the 2009 solicitation, we will consider proposals that aim to investigate emerging frontiers in the following two specific research areas:

  1. BioSensing & BioActuation: Interface of Living and Engineered Systems (BSBA)
  2. Hydrocarbons from Biomass (HyBi)

Due dates

Open PhD positions: Computational Mechanics and Inverse Problems

Highly motivated PhD or MS/PhD candidates are sought for
research in computational mechanics and inverse problems in the Department of
Civil and Environmental Engineering at the University of Pittsburgh.

 

ramdas chennamsetti's picture

Strain compatibility equation in non-linear solid mechanics!!!

We have six strain compatibility equations, which are obtained from strain-displacement relations by making an assumptions 'small strains'. Strain compatibility equations ensure a single valued and continuous displacemnet filed. These equations are used in stress based approach.

Now my queries are as following.

[1] Do we have strain compatibility equations for non-linear strain-displacement relations?

[2] Do we follow stress based approach in non-linear solid mechanics.

Analytical solution for deflection of plate

I am a third yr undergraduate student of Aerospace Engineering department, IIT Kharagpur. I have a very simple question in strucutral mechanics. Is there any analytical solution available for deflection of plate under distributed load? The governing equation is well known and has been attached as an image file. Only classical plate theory can be considered. The boundary conditions can be taken as classical boundary conditions. So that can be any combination of a) hinged b) clamped and c) free boundary conditions.

finite element analysis

Can i have some notes on FEM & FDM?

Ning Wang's picture

Podosomes are dynamic mechanosensors

We recently find that podosomes, very dynamic, self-organized structures, can function as mechanosensors.  For details, see the recent issue of Current Biology.

The Fourth International Conference on Multiscale Materials Modeling October 27-31, 2008, Tallahassee, FL, USA

FYI. If you have any questions, please contact the organizer directly (see link below). 

http://www.mmm2008.org/bin/view.pl/Main/WebHome

The Fourth International Conference on Multiscale Materials Modeling
October 27-31, 2008, Tallahassee, FL, USA

Symposium 1: Mathematical issues in multiscale materials modeling

Postdoctoral Appointee – Computational Plasticity

A postdoctoral position at Sandia National Labs in Livermore, CA is available for an applied mechanics engineer with a strong background in computational constitutive model development. The work will support our current projects in the areas of continuum plasticity and failure modeling. The applicant will also be expected to implement models into Sandia computer codes for high-performance computing simulations. In addition, the candidate will collaborate with structural analysts to apply these advanced models to Sandia applications.

Watch the metallic glass "flowing" at room temperature

Metallic glass in bulk form is known to have superb strength and elastic response but very limited plastic deformation ability. Through machining the metaillinc glass into submicometer pillars, experiment found that metallic glass can actually sustain very large plastic doformation (see attached Figure).  The detail of this finding can be found in our most recent publication: Z. W. Shan et al, Plastic flow and failure resistance of metallic glass: Insight from in situ compression of nanopillars, Phys. Rev. B 77, 155419 (2008) (6 pages).

Zhigang Suo's picture

The 2012 IUTAM Congress will be held in Beijing

Hello from Adelaide, Australia.  I'm at the IUTAM Congress.  The big news today:  the 2012 IUTAM Congress will be held in Beijing.  The Chinese delegates made a brilliant bidding.  Among promised items are good food, low registration fee (which will pay for all lunches), National Conference Center in the Olympic Village, and a tour to the Great Wall (which is also included in the registration fee).  So start planning for the trip.

Dean Eastbury's picture

7th IC Fatigue Damage of Structural Materials - just over 2 weeks to go!

The 7th International Conference on Fatigue Damage of Structural Materials will be held in Hyannis, Mass., USA, 14-19 September. Hyannis is situated 80 mi/130 km from Boston's Logan International Airport and is easily reached either by car or by public transport.

The full oral and poster programs, as well as registration details can be found on the conference website at www.fatiguedamage.elsevier.com

Postdoctoral Position in probabilistic multiscale/multiresolution formulations

A postdoctoral position is immediately available in the areas of multiscale/multiresolution formulations and analysis in computational mechanics/physics. The project entails investigation of stochastic upscaling techniques and derivations of reduced-order models. Interested applicants should preferably have backround in uncertainty modeling and/or statistical learning. Proficiency in scientific computing and programming is necessary.

Inquiries and applications (including a detailed CV with names of three references) should be directed to:

Postdoctoral Fellowship - Computational Solid Mechanics

Postdoctoral Research Position – Computational Solid Mechanics Weapons and Materials Research Directorate (WMRD, US Army Research Laboratory (ARL) Aberdeen Proving Ground, MD WMRD has an immediate opening for a postdoctoral research associate to conduct research in high rate damage and failure of ductile and brittle materials. Researcher would be part of a team that includes scientists at WMRD/ARL and faculty and students in Mechanical Engineering and Materials Science at The Johns Hopkins University under a Cooperative Research Agreement.

ASME AMD Committee on Fluid-Structure Interaction is Sponsoring 6 Mini-symposia at IMECE 2008

In December 2006 the ASME Applied Mechanics Division (AMD) Executive Committee approved a new technical committee, Committee on Fluid-Structure Interaction (CFSI). The CFSI is sponsoring 6 mini-symposia within Track 12 "Mechanics of Solids, Structures and Fluids" of the ASME International Mechanical Engineering Congress, in Boston, October 31 - November 6, 2008. These 6 mini-symposia will have a total of 17 sessions and are titled:

Entropic rigidity of a crumpling network in a randomly folded thin sheet

We have studied experimentally and theoretically the response of randomly folded hyperelastic and elastoplastic sheets on the uniaxial compression loading and the statistical properties of crumpling networks. The results of these studies reveal that the mechanical behavior of randomly folded sheets in the one-dimensional stress state is governed by the shape dependence of the crumpling network entropy.

Early-bird registration for the ASME International Mechanical Engineering Congress and Exposition

The deadline for early-bird registration, with a $50 saving, is 28 August 2008.  Please consider to register for the Applied Mechanics Division Honors & Awards Banquet to meet your friends, and to congratulate the winners

In Memoriam: Professor Dusan Krajcinovic

Dusan Krajcinovic (1935-2007)Dusan Krajcinovic received his Bachelor’s and Master’s degrees in Civil Engineering from the University of Belgrade (1958, 1966) and his PhD in Civil Engineering from Northwestern University in 1968, working with Prof. George Hermann.

Mike Ciavarella's picture

biomimetics from national geographics april 2008

http://ngm.nationalgeographic.com/2008/04/biomimetics/tom-mueller-text

Biomimetics

Boxfish Hdr

Biomimetics: Design by Nature
What has fins like a whale, skin like a lizard, and eyes like a moth? The future of engineering.

By Tom Mueller

Photograph by Robert Clark

Biomimetics: Design by Nature

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