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On the Degree of Irreversibility of Friction in Sheared Soft Adhesive Contacts

Submitted by Antonio Papangelo on

A number of authors have experimentally assessed the influence of friction on adhesive contacts, and generally the contact area has been found to decrease due to tangential shear stresses at the interface. The decrease is however generally much smaller than that predicted already by the Savkoor and Briggs 1977 classical theory using “brittle” fracture mechanics mixed mode model extending the JKR (Griffith like) solution to the contact problem.

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Submitted by Bin Wang on

 

Superior biomimetic nacreous bulk nanocomposites by a multiscale soft-rigid dual-network interfacial design strategy, Chen, Gao, et al., Yu, Matter, 2019

 

Novelty/impact/significance:

 

A multiscale soft-rigid dual-network interfacial design strategy produces nacre-like bulk composites with superior mechanical properties, improved stabilities in high humidity and temperature, and the process is a facile, efficient, and scalable fabrication.

 

Scientific question:

 

Call article collections on Extreme Mechanics of Soft Active Materials for Soft Robotics

Submitted by linst06 on

Call article collections on Extreme Mechanics of Soft Active Materials for Soft Robotics

Dear Colleagues,

In collaboration with the Journal “Frontiers in Robotics and AI”, we are bringing together a selected group of international experts to contribute to an open-access article collection on: “Extreme Mechanics of Soft Active Materials for Soft Robotics

The submission deadline is 01 March 2021.

Visit the collection homepage for the full description of the project:

EML Webinar by Prof. Teng Li on July 29, 2020: Advanced Materials toward a Sustainable Future: Mechanics Design

Submitted by Teng Li on

EML Webinar on July 29, 2020 will be given by Professor Teng Li, the University of Maryland via Zoom meeting. Discussion leader: Professor Zheng Jia, Zhejiang University.

Title: Advanced Materials toward a Sustainable Future: Mechanics Design

Time: 7 am California, 10 am Boston, 3 pm London, 10 pm Beijing on July 29, 2020

Does the loading apparatus stiffness affect the equilibrium of soft adhesive contacts under shear?

Submitted by Antonio Papangelo on

The interaction between contact area and frictional forces in adhesive soft contacts is receiving much attention in the scientific community due to its implications in many areas of engineering such as surface haptics and bioin-spired adhesives. In this work, we consider a soft adhesive sphere that is pressed against a rigid substrate and is sheared by a tangential force where the loads are transferred to the sphere through a normal and a tangential spring, representing the loading apparatus stiffness.

Applied Mechanics Division – Haythornthwaite Foundation Research Initiation Grants 2020

Submitted by Executive Comm… on

With funding from the Haythornthwaite Foundation, the Executive Committee (EC) of the Applied Mechanics Division (AMD) of ASME is pleased to announce the establishment of the Haythornthwaite Research Initiation Grant Program, targeting university faculty engaged in research in theoretical and applied mechanics that are at the beginning of their academic careers.