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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

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

 

Teng Li's picture

EML Webinar

  • Mark your calendar: every Wednesday at 10 am Boston, 3 pm London, 10 pm Beijing.
  • Join live webinars in two ways: Zoom (for attending the lecture and participating in the discussion) or YouTube Live Stream.
  • Replay videos of past EML Webinars on YouTube or Weibo.
Dr. Hanaor - Department of Ceramic Materials - TU Berlin's picture

Electrical contact resistance and its dependence on applied pressure

The relationships between surface roughness, contact pressure and contact resistance are studied in this work published three years ago.

It is imporant to distinguish between the different conduction mechanisms acting at contacts at different scales, in order to better understand how surface structure and surface chemistry can alter the behaviour of electrical contacts

USACM Virtual Seminar by Manuel Rausch, the University of Texas

The USACM is happy to announce a virtual seminar this week on Thursday, July 9th at 3pm Eastern.  The title of the seminar is "Image- and Experiment-based Modeling of the Forgotten Right Side: Right Ventricle, Tricuspid Valve, and Venous Blood Clot".  An abstract of the talk is available here:

https://unsacm.memberclicks.net/assets/docs/Rausch_2020.07.09_2pm.pdf

We have a number of seats available to anyone interested.  We just ask attendees to register at this page:

Bin Wang's picture

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Hydrogel ionotronics, Canhui Yang and Zhigang Suo, Nature Reviews Materials, 2018

 

Bin Wang's picture

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Design of robust superhydraphobic surfaces, Dehui Wang, Zuankai Wang, Robin H.A. Ras, Xu Deng, et al., Nature, 2020

Superhydrophobic surfaces have promising applications in various medical and engineering applications; however, these surfaces, either via physical and/or chemical methods, suffer from one major flaw- extremely vulnerable to mechanical damage, so lose superhydrophobicity easily in practice.

Nuwan Dewapriya's picture

Molecular Dynamics Simulation of a Polymer-Metal Interface in LAMMPS

We are currently investigating the impact resistance of multilayers using molecular dynamics. This project showed us that modelling material interfaces could be challenging even for someone with a background in atomic simulations. Therefore, we thought of sharing some useful information and the LAMMPS input files to model the aluminum-polyurethane interface.

How to include temperature effects on the shear rates in Dr. Huang's crystal plasticity code

I am using Dr. Huang's crystal plasticity code for an adiabatic process where temperature increase due to deformation need to be calculated. Dr. Huang's CP UMAT code does not consider the temperature effect of shear rate or hardening. Is there a way to include temperature effects in the current UMAT code?

http://www.columbia.edu/~jk2079/Kysar_Research_Laboratory/Single_Crystal...

Fan Xu's picture

Thermal wrinkling of liquid crystal polymer shell/core spheres

Smart soft materials that can flexibly respond to external multi-physics stimuli, have shown intriguing applications in shape-morphing and morphology control. Here, we present tunable wrinkling patterns in core-shell spheres under thermal load via controlling the orientation of director in nematic liquid crystal polymer (LCP). To analyze nonlinear instability and morphological evolution of LCP shell/core spheres, we develop a shallow core-shell model that accounts for director-induced anisotropic spontaneous strains.

USACM Virtual Seminar by Pania Newell, University of Utah

The USACM is happy to announce a virtual seminar this week on Wednesday, July 1st at 3pm Eastern.  The title of the seminar is "Examining Fracture Behavior in Heterogeneous Poro-Elastic Media from Nano to Macro-Scale".  An abstract of the talk is available here:

https://unsacm.memberclicks.net/assets/docs/Newell_2020.07.01_2pm.pdf

We have a number of seats available to anyone interested.  We just ask attendees to register at this page:

Bin Wang's picture

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Layered nanocomposites by shear-flow-induced alignment of nanosheets, Chuangqi Zhao, Lei Jiang, Mingjie Liu, Nature, 2020

 

Good papers clearly state their novelty/significance, scientific question, and key of how in the abstract, and the writing is clear and coherent, despite the depth and complexity of the work.

 

Novelty/impact/significance:

Mayank Patni's picture

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). 

Teng Li's picture

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.

Siddiq Qidwai's picture

Foundational Research in Robotics (Robotics) Program: CAREER Office Hours

NOTE: This announcement is relevant to US academic researchers only.

NSF will host a series of virtual office hours for researchers considering submitting a CAREER proposal to the new Foundational Research in Robotics (Robotics) program this summer. Come prepared to ask questions to the Robotics program directors or just join to hear what others want to know. 

Topic: Robotics Program: CAREER Office Hours

Antonio Papangelo's picture

Interfacial Dissipative Phenomena in Tribomechanical Systems

Dear Colleagues,

In the last twenty years, tribology and nonlinear dynamics have included several major contributions related to key topics such as rough contact, friction, damping mechanisms, and dynamical behaviour of nonlinear systems, which are paving the way for future engineering challenges. The two fields are largely intertwined as, among the others, contact nonlinearities are almost omnipresent in any technical application ranging from the development of NEMS/MEMS to bioengineering, automotive, civil/mechanical industry, and aerospace.

USACM Virtual Seminar by John Evans, UC Boulder

The USACM is happy to announce a virtual seminar this week on Thursday, June 25th at 3pm Eastern.  The title of the seminar is "Data-Driven Turbulence Modeling and Simulation: From RANS to LES".  An abstract of the talk is available here:

https://unsacm.memberclicks.net/assets/docs/Evans_2020.06.25_2pm.pdf

We have a number of seats available to anyone interested.  We just ask attendees to register at this page:

MNasr's picture

Deformation Mechanisms in Gold Nanoporous

Our recent work on nanoporous gold addresses defrmation mechanisms in nanoporous gold through molecular dynamics simulations, proposing the use of load transfer between nanopores for biosensing applications. Check details: https://www.researchgate.net/publication/341137264_Molecular_Dynamics_Simulations_of_Deformation_Mechanisms_in_the_Mechanical_Response_of_Nanoporous_Gold

MNasr's picture

Honeycomb Nanoporous Silicon with Magic Properties

Our recent study through molecular dynamics simulations represents a new approach to improve the mechanical behaviour of nanoporous silicon through controlling the pore shape. In this work, a high strength and ductile structure is obtained for honeycomb nanoporous strucutres.

Bin Wang's picture

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Graphene reinforced carbon fibers, Zan Gao, et al., Xiaodong Li, 2020

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