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Derivatives of Tensors

Hi all,

I am looking for a general definition of the derivative of a tenorial product (e.g. when the expression for Stress contains nonlinear terms in deformation gradient, F ).

I start with a very simple example:

∂F_pq/∂F_mn = δ_pm  δ_qn , i.e. Kronecker delta with first index of F_pq and first index of  F_mn, and second Kronecker delta for second pair of indices q & n.

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Overview of solid mechanics


This video (LINK)  attempts to give the big picture of solid mechanics along with the brief explanation of the constituent topics.


This is an educational outreach initiative targeted at all engineers interested in mechanics and seek simpler explanations. Kindly share if you learn something out of this !




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Postdoctoral position at the Technion - Israel Institute of Technology: A multiphysics modeling of electroactive polymers

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CISM course ''Modelling and Simulation of Tribological Problems in Technology''

Advanced Course at the International Centre for Mechanical Sciences (CISM, Udine, Italy)


Modelling and Simulation of Tribological Problems in Technology

May 28, 2018 — June 1, 2018 


Marco Paggi (IMT School for Advanced Studies Lucca, Lucca, Italy)

David A. Hills (University of Oxford, Oxford, Great Britain)

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The Massachusetts Institute of Technology (MIT) Department of Mechanical Engineering seeks candidates for faculty positions starting July 2018 or on a mutually agreed date thereafter. Appointments will be at the assistant or untenured associate professor level. In special cases, a senior faculty appointment will be considered. Our department is committed to fostering interdisciplinary research that can address grand challenges facing our society.

Postdoctoral Opportunities at US Naval Research Laboratory

We are looking for Postdoctoral Fellows with computational mechanics background specializing in one or more of these areas: solid mechanics, wave-structure interaction, fatigue and corrosion induced structural damage.

Please check the attached flyer for details or visit


Thanks, Saikat Dey

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Postdoctoral Research Associate at Dartmouth

One postdoctoral fellow position in solid mechanics/biomechanics at Dartmouth is immediately available in the Chen group at Thayer School of Engineering at Dartmouth ( The subjects of research include, but arre not limited to, cancer cell migration, mechanics of morphogenesis in embryos or plants, and/or bioinspired robots.

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Can anyone suggest a time integration scheme for non constant mass (M), stiffness(K) and damping (C) matrices? I am trying to solve a dynamic system (Ma+Cv+Ku=R) where the matrices M,C and K are time dependent.


Any thoughts/ideas will be highly aprreciated. Thank you. 

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Faculty Positions in Mechanical Engineering at University of Connecticut

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SEM 2018 Mechanics of Time Dependent Materials June 4-7

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Faculty Positions in Mechanical Science and Engineering at UIUC

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Stress distribution is not accurate of ballastless track in ABAQUS

Dear riends.

   I have been trying to do is that developing a model of railway track using Abaqus software in order to check the dynamic responses of subgrade layer. For that, I have created all layers of the complete track using different specific materials and TIE constrains for each layer. In addition, I have created in the interaction between wheel and rail with firctional interaction. I have tried two steps, step 1 is static general and step 2 dynamic implicit and I am using time amplitude.

Time integration scheme for XFEM? (dynamic crack propagation)

Hello everyone,


Can somebody suggest an implicit/explicit time integration scheme when the matrices involved(M,C,K) are time dependent? (They change at every time step because of the crack tip enrichment functions which are time dependent).


I used the implicit Newmark scheme (trapezoidal/constant average acceleartion method) but just discovered that all my matrices (M,C,K) are time dependent where the original scheme is probably for constant M,C and K matrices. I used the scheme as in reference [1]. 


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We would like to invite you to submit an abstract to Symposium: Growth and Remodeling of Living Matter, as part of the 18th U.S. National Congress for Theoretical and Applied Mechanics  (USNCTAM 2018). The conference will be hosted by Northwestern University, at the Hyatt Regency O'Hare from June 5 to June 9, 2018.  

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The Department of Materials Science and Engineering at Texas A&M University invites applications for a tenured or tenure-track faculty position in the area of mechanical behavior of advanced structural materials.  Although candidates at the assistant professor level are preferred, exceptionally well qualified candidates will be considered for appointment at the rank of associate or full professor.

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The Department of Materials Science and Engineering at Texas A&M University invites applications for a tenured or tenure-track faculty position in the area of mechanical behavior of advanced structural materials.  Although candidates at the assistant professor level are preferred, exceptionally well qualified candidates will be considered for appointment at the rank of associate or full professor.

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Mechanics of Energy and Energetic Materials

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Reader, Senior Lecturer and Lecturer at Loughborough University, UK

The above positions are available at the Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, UK.

Please consider the adverts and apply using the following web pages:

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