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Journal Club for October 2021: Mechanobiology and Mechanomedicine: tuning the tension in the life

 

Mechanobiology and Mechanomedicine: tuning the tension in the life

 

Baohua Ji (bhji@zju.edu.cn)

Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027

 

Abstract

lijianyu's picture

Journal Club for June 2020: Mechanically instructive biomaterials: a synergy of mechanics, materials and biology

 

Mechanically instructive biomaterials: a synergy of mechanics, materials and biology

Zhenwei Ma, Jianyu Li

Department of Mechanical Engineering, McGill University, Montreal, Canada

 

tarkes's picture

Developments in Photoelasticity: A renaissance

Have you ever wondered that you can visually see the stress patterns live in a loaded structure! I am not speaking about the contours that you see in commercial finite element software #fea .

For e.g. see the colorful image attached. The fringe patterns are the live stress field around a crack in a loaded structure.

Find more answers on how to interpret these images using state of the art image processing technology in the newly published book:

Dr. Hanaor - Department of Ceramic Materials - TU Berlin's picture

Improved oxidation resistance of high emissivity coatings on fibrous ceramic for reusable space systems

Towards the development of reusable space systems, high emissivity coatings on fibrous ceramic substrates with improved thermal resistance are needed. In this study WSi2–MoSi2–Si–SiB6-borosilicate glass coatings were prepared on fibrous ZrO2 by slurry dipping and subsequent high temperature rapid sintering. A coating with 20 wt% WSi2 and 50 wt% MoSi2 presents optimal thermal stability with only 10.06 mg/cm2 mass loss and 4.0% emissivity decrease in the wavelength regime 1.27–1.73 μm after 50 h oxidation at 1773 K. The advantages of double phase metal-silicide coatings combining WSi2 and MoSi2 include improved thermal compatibility with the substrate and an enhanced glass-mediated self-healing ability.

rbatra's picture

Misuse of Eringen's non-local elasticity theory for functionally graded materials

Nearly 50 years ago, Eringen developed a nonlocal theory of elasic solids according to which the Causchy stress tensor "sigma" at a point x depends upon the strain tensor "epsilon" not only at the point x but also at all other points in the body.  For homogeneous solids, and a few additional assumptions, he showed that the constitutive relation can be reduced to a differential form that has become popular among people studying deformations of functionally graded materials (FGMs).  However, an FGM is inhomogeneous

matthew.grasinger's picture

Statistical mechanics of a dielectric polymer chain in the force ensemble

Dear colleagues,

We invite you to see the preprint of our new paper "Statistical mechanics of a dielectric polymer chain in the force ensemble" that will appear in Journal of the Mechanics and Physics of Solids. Here we compute the electroelasticity of single polymer chains using both analytical approximations and novel MCMC techniques. Working in the fixed force ensemble facilitates the derivation of the analytical approximations, which are shown to agree well with the MCMC results. This work complements prior work on the statistical mechanics of dielectric polymers chains obtained in a different ensemble. (https://doi.org/10.1016/j.jmps.2021.104658).

SwarnavaGhosh's picture

Machine-learned prediction of the electronic fields in deformed crystals

Dear Colleagues,

I am writing to share an article titled, "Machine-learned prediction of the electronic fields in a crystal", co-authored by Ying-Shi Teh, Professor Kaushik Bhattacharya and myself. The article is published in the journal Mechanics of Materials. Link to the article:  https://doi.org/10.1016/j.mechmat.2021.104070                               

mohsenzaeem's picture

Modified embedded-atom method interatomic potentials for Al-Cu, Al-Fe and Al-Ni binary alloys: From room temperature to melting point

Second nearest neighbor modified embedded-atom method (2NN-MEAM) interatomic potentials are developed for binary aluminum (Al) alloys applicable from room temperature to the melting point. The binary alloys studied in this work are Al-Cu, Al-Fe and Al-Ni. Sensitivity and uncertainty analyses are performed on potential parameters based on the perturbation approach.

PINNs for solving multiphase poroelasticity relations

Link to the paper - PINN-Poroelasticity

If you are interested in physics informed neural networks (PINNs) and coupled single and multiphase flow in porous media, please check out our work below: 

- We find it challenging to solve coupled poroelasticity relations using PINNs (data-free).

Teng Li's picture

EML Webinar (Season 2) on 13 October 2021 by Alain Goriely on dynamics of active filaments

EML Webinar (Season 2) on 13 October 2021 will be given by Alain Goriely on dynamics of active filaments. Discussion leader:Krishna GarikipatiUniversity of Michigan

Time: 10 am Boston, 3 pm London, 10 pm Beijing on 13 October 2021

Wenbin Yu's picture

How Can Machine Learning Help Composites Modeling?

Our views on how one can leverage machine learning techniques to help constitutive modeling of composite materials are summarized in this paper

Xin Liu, Su Tian, Fei Tao and Wenbin Yu, A review of artificial neural networks in the constitutive modeling of composite materials, Composites Part B, vol. 224, 2021,109152. 

https://www.sciencedirect.com/science/article/pii/S1359836821005321.

mihussein's picture

Review: Pillared phononic crystals, metamaterials, and metasurfaces

FYI, this is a recent review article titled, “Physics of surface vibrational resonances: pillared phononic crystals, metamaterials, and metasurfaces,” which has recently appeared in Reports on Progress in Physics.

Rep. Prog. Phys. 84, 086502, 2021
https://iopscience.iop.org/article/10.1088/1361-6633/abdab8

Nili's picture

PhD Position at San Diego State University

Dynamic Systems and Intelligent Machines (DSIM) Lab at the San Diego State University has an open PhD position in the areas of perception, planning, and control of autonomous systems. Highly motivated applicants with prior experience in robotics, control, and machine learning and strong programming skills and mathematical background are encouraged to apply. Applicants should have B.Sc. and M.Sc.

Emilio Martínez Pañeda's picture

A phase field model for hydrogen-assisted fatigue

Dear iMechanicians. I hope that you find the below work interesting - we have developed the first phase field formulation for hydrogen assisted fatigue. Fatigue crack nucleation and growth is predicted for arbitrary geometries, loading histories, and H contents. Virtual S–N curves are also obtained. You can check it here: https://doi.org/10.1016/j.ijfatigue.2021.106521

Request to physicists: Would you be willing to provide some informal feedback on my new approach to QM?

I have a request to make to physicists: Would they be willing to provide some informal feedback on my new approach to QM?

Update (2021.09.21 15:57 IST): There were unusually many blog hits for the document. ... I do like the work getting noticed, but still, I guess, a clarification is in order:

Mirkhalaf's picture

[Polymers] Special Issue: Mechanics of 3D-Printed Polymers and Polymer Composites

A special issue on "Mechanics of 3D-Printed Polymers and Polymer Composites", is recently launched in the journal "Polymers". If your research is related to the topic, I would like to invite you to submit your latest research developments to the special issue. For more details and submitting your manuscript, please see: 

https://www.mdpi.com/journal/polymers/special_issues/Mech_3D_Print_Polym...

 

Fan Xu's picture

Buckling of an elastic layer based on implicit constitution: Incremental theory and numerical framework

A general class of implicit bodies was proposed to describe elastic response of solids, which contains the Cauchy–Green tensor as a function of Cauchy stress. Here, we consider the buckling of solids described by such a subclass of implicit constitutive relation. We present a general linear incremental theory and carry out bifurcation analysis of a uniaxially compressed rectangular layer described by an implicit constitution.

Antonio Papangelo's picture

Viscoelastic normal indentation of nominally flat randomly rough contacts

Viscoelastic materials are receiving increasing attention in soft robots and pressure sensitive adhesives design, but also in passive damping techniques in automotive and aerospace industry. Here, by using the correspondence principle originally developed by Lee and Radok and further extended by Ting and Greenwood, we transform the elastic solutions of Persson for contact of nominally flat but randomly rough surfaces to viscoelastic indentation. As an example, the cases of step loading and of the response to a single cycle of harmonic loading are studied.

arash_yavari's picture

Universal Deformations in Inhomogeneous Isotropic Nonlinear Elastic Solids

Universal (controllable) deformations of an elastic solid are those deformations that can be maintained for all possible strain-energy density functions and suitable boundary tractions. Universal deformations have played a central role in nonlinear elasticity and anelasticity. However, their classification has been mostly established for homogeneous isotropic solids following the seminal works of Ericksen. In this paper, we extend Ericksen's analysis of universal deformations to inhomogeneous compressible and incompressible isotropic solids.

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