Journal Club for July 2020: Fatigue-resistant hydrogels: Principles, Experiments, and Applications
Fatigue-resistant hydrogels: Principles, Experiments, and Applications
Shaoting Lin, Xuanhe Zhao
1. Introduction
Elasticity notes of Eli Sternberg
Here are the elasticity notes of Eli Sternberg over many years as he taught AM 135 at Caltech. I had access to them when I was working with Prof. Kaushik Bhattacharya at Caltech during postdoc. Prof. Bhattacharya suggested making the notes publicly available via iMechanica, and below is a short note from him.
Variable kinematics continuum finite element
Willing to share the work done in my Ph.D. thesis ("An efficient numerical framework for capturing localised 3D stress fields in laminated composites). The basic code (written in FORTRAN 90) is available on GITHUB (Check the following link).
World’s First Spherical Artificial Eye Has 3D Retina
Hello iMechanica! My name is Ryan and I am the Founder of Mechanical Engineering HQ. I am writing here today to share an interesting development in prosthesis. Scientists have claimed that they have developed a new artificial eye that has more advanced capabilities than human eyes. Read on to see if they have achieved this feat!
MS and Postdoctoral Opportunity in Ceramic Matrix Composites
US CITIZENS AND GREEN CARD HOLDERS ONLY
Post-doctoral Fellow in multiscale topology optimization and additive manufacturing of lattice structures at at HKU
Applications are invited for appointment as Post-doctoral Fellow in multiscale topology optimization and additive manufacturing of lattice structures in the Department of Orthopaedics and Traumatology (Ref.: 500412), to commence as soon as possible for one to three year(s), with the possibility of renewal subject to satisfactory performance. A highly competitive salary (above HK$30,000 per month, low tax rate) commensurate with qualifications and experience will be offered, in addition to annual leave and medical benefits.
EML Webinar by Prof. Chiara Daraio on July 1, 2020: The Mechanics of Robotic Matter
EML Webinar on July 1, 2020 will be given by Prof. Chiara Daraio at Caltech via Zoom meeting. Discussion leader: Teng Li, University of Maryland.
Title: The mechanics of Robotic Matter
Time: 7 am California, 10 am Boston, 3 pm London, 10 pm Beijing on July 1, 2020
Zoom Link: https://harvard.zoom.us/j/271079684
How useful are formal hierarchies? A case study on averaging dislocation dynamics to define meso-macro plasticity
A formal hierarchy of exact evolution equations are derived for physically relevant space-time averages of state functions of microscopic dislocation dynamics. While such hierarchies are undoubtedly of some value, a primary goal here is to expose the intractable complexity of such systems of nonlinear partial differential equations that, furthermore, remain ‘non-closed,’ and therefore subject to phenomenological assumptions to be useful. It is instead suggested that such hierarchies be terminated at the earliest stage possible and effort be expended to derive closure relations for the ‘non-closed’ terms that arise from the formal averaging by taking into account the full-stress-coupled microscopic dislocation dynamics (as done in [CPZ+ 20]), a matter on which these formal hierarchies, whether of kinetic theory type or as pursued here, are silent.
Immediate PhD Position in Computational Engineering at the University at Buffalo for Fall/Spring 2020
An immediate Ph.D. position is available in the Predictive Computational Engineering (PCE) Lab in the Department of Mechanical and Aerospace Engineering. The research project aims at developing novel computational methods for predictive modeling and uncertainty quantification of biomimetic-inspired materials systems. Candidate should already be in the U.S. and must have a Master's degree in engineering or applied math. A strong background in computational and applied mechanics is desired. If interested, contact Dr.
Postdoctoral positions in computational atomistic modeling
Two postdoctoral positions are available in the laboratory of physical metallurgy in CEA Saclay (France) for two years starting this Fall 2020 to work either on the thermodynamic modeling of Ti-Zr-O alloys using ab initio calculations, or on the interaction between dislocations and precipitates in Zr-Nb alloys using molecular dynamics.
1) Modeling of Ti-Zr-O thermodynamics from ab initio calculations