research

Phase-field modeling of the interactions between an edge dislocation and an array of obstacles

Submitted by Shuozhi Xu on Sun, 12/26/2021 - 05:27

research

phase-field

Dislocation-Obstacle Interactions

https://doi.org/10.1016/j.cma.2021.114426

Abstract

Fracture and structural performance of adhesively bonded 3D-printed PETG single lap joints under different printing parameters

Submitted by Payam Soltani on Sun, 12/19/2021 - 23:18

research

3D-printed composites

Adhesion and fracture

Structural Adhesive Bonding

Advanced FEM

Link to paper: Fracture and structural performance of adhesively bonded 3D-printed PETG single lap joints under different printing parameters

Origins of mechanical preconditioning in hierarchical nanofibrous materials

Submitted by Ramathasan The… on Fri, 12/17/2021 - 03:18

research

Dear Colleagues,

I invite you to read our recent paper on Origins of mechanical preconditioning in hierarchical nanofibrous materials, published in Extreme Mechanics Letters.

Abstract

Extreme Dynamic Performance of Nanofiber Mats under Supersonic Impacts Mediated by Interfacial Hydrogen Bonds

Submitted by Ramathasan The… on Fri, 12/17/2021 - 03:12

Ballistic Impact Response

interfacial interactions

dynamic performance

Dear Colleagues,

I invite you to read our recent paper on the Extreme Dynamic Performance of Nanofiber Mats under Supersonic Impacts Mediated by Interfacial Hydrogen Bonds published on ACS Nano.

Abstract

Special Issue: Call for Papers & Guest Editors—Advanced Applied Mathematics for Medical Engineering and Medical Technique Applications

Submitted by Asst. Prof. Dr… on Fri, 12/10/2021 - 07:56

research

Subject:

Special Issue: Call for Papers & Guest Editors—Advanced Applied Mathematics for Medical Engineering and Medical Technique Applications

Dear Colleagues,

Hope this email finds you well.

We are writing to inform you that a new special issue has just been established.

Title: Advanced Applied Mathematics for Medical Engineering and Medical Technique Applications

Journal: Engineering Mathematics

On the consequences of cross-link dissociation in hydrogels

Submitted by noyco on Wed, 12/08/2021 - 00:34

research

Polymer networks

hydrogels

cross-link dissociation

The submersion of a polymer network with a high density of hydrogen bond based cross-links in an aqueous bath results in the formation of a rubber-like hydrogel. The cross-links, which connect chains and maintain the structure of the network, can dissociate as a result of two main factors: (1) the interactions between the hydrogen bonds and the surrounding water molecules and (2) the forces that are exerted on the cross-link from the interconnected chains.

EML Webinar (Season 2) on 16 December 2021 by Nanshu Lu on soft electronics for digitizing human body and human-centered robotics

Submitted by Teng Li on Tue, 12/07/2021 - 15:55

research

EML Webinar (Season 2) on 16 December 2021 will be given by Nanshu Luonsoft electronics for digitizing human body and human-centered robotics. Discussion leader: John A. Rogers, Northwestern University

Time: 9:30 am Boston, 2:30 pm London, 10:30 pm Beijing on 16 December 2021

Zoom Link: https://ter.ps/EMLWebinarS2

Viscoelastic dissipation in repeated normal indentation of an Hertzian profile

Submitted by Antonio Papangelo on Thu, 12/02/2021 - 09:03

research

Adhesion and fracture; adhesion; contact mechanics; friction; viscoelasticity

Simple exact solutions are known for the indentation problem of a viscoelastic halfspace by a rigid sphere only as long as the contact area is growing. We consider instead a more general cyclic repeated indentation with a pulsating load with a period of zero load. We show that a combination of exact with empirical relaxation solutions coming from simple uniaxial cases is sufficiently accurate to estimate the energy dissipated per cycle, which we report for the standard ”3-elements” solid and periodic half-sine loading for various parameters.