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Keep EML Webinar going!

Submitted by Teng Li on

Keep EML Webinar going by donating at: 

https://www.gofundme.com/f/keep-eml-webinar-going

We gratefully acknowledge the financial support for Season 2 of EML Webinar by (as of 18 May 2021):

Denian Zhuang, Jimmy Hsia, Zhigang Suo, Ruobing Bai, Teng Li, Liqing Jiao, Shengqiang Cai, Grace Gu, Xin Wen, Jianyu Li, Jin Yang, Nitesh Arora, and anonymous donors. 

Dear friends of EML Webinar,

EML Webinar (Season 2) by Eduard Arzt, on 19 May 2021: Designing with gaps – functional surfaces for sustainable gripping

Submitted by Teng Li on

EML Webinar (Season 2) on 19 May 2021 will be given by Eduard Arzt, Saarland University. Designing with gaps – functional surfaces for sustainable gripping. Discussion Leaders: Huajian Gao, Nanyang Technological University

Time: 10 am Boston, 3 pm London, 10 pm Beijing on 19 May 2021

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

Live streaming on YouTube: https://ter.ps/EMLYouTubeLV

What makes plant cell walls both strong and extensible?-----a collaborative study led by Prof. Sulin Zhang and Prof. Daniel Cosgrove in Science

Submitted by yaozhangwh on

The plant cell wall possesses an unusual combination of strength and ability to expand without weakening or breaking (a quality required for plant growth), but the molecular basis for these traits has long been unclear. In a collaborative study led by Prof. Sulin Zhang and Prof.

PNAS: Compliant 3D frameworks instrumented with strain sensors for characterization of millimeter-scale engineered muscle tissues

Submitted by Hangbo Zhao on

In this work published in PNAS (https://www.pnas.org/content/118/19/e2100077118), we present compliant 3D frameworks that incorporate microscale strain sensors for high-sensitivity measurements of contractile forces of engineered optogenetic muscle tissue rings, supported by quantitative simulations.

Abstract: 

Phase field modelling in octave

Submitted by Surendran M on
Choose a channel featured in the header of iMechanica

Hi I tried to code a basic phase field model for fracture in octave.

It doesn't seem to converge to the correct load. It fails later.

Also mesh refinement did not improve the results.

The link to the GIT is here

https://github.com/dontcallmesuren/Phase-field-modelling.git

 

Any idea where I am wrong?

Ping me. Thanks in advance.

Mechanics to explain tsunamis---Rosakis and co-workers in PNAS

Submitted by Pradeep Sharma on

Ares Rosakis and collaborators across three other institute have just published a fascinating account of a rather unexpected mechanism for generating  tsunamis. The paper, published in PNAS, is attached with this post.

The associated press-release provides a compelling lay-person summary: https://www.caltech.edu/about/news/contrary-to-previous-belief-strike-s…

 

Global Composites Experts Webinar by Dr. Pascal Hubert

Submitted by Wenbin Yu on

cdmHUB invites you to attend the Global Composites Experts Webinar Series. 

Title: Sustainable Manufacturing of Composite Materials

Speaker: Dr.  Pascal Hubert

Time: 5/13, 11AM-12PM EST.

Please go to https://www.purdue.edu/cmsc/events/2020-webinars/ to register for this webinar.

Young’s Modulus, Tangent Modulus, and Chord Modulus

Submitted by Deniz Yalcin on

This blog post covers the description and determination of Young’s modulus, tangent modulus, and chord modulus. These properties, commonly used for product and material specification, can be calculated by subjecting a specimen to uniaxial force, measuring its stress and strain properties, and generating a stress-strain curve. The accuracy of the modulus determination depends on the precision of the load and strain measurements.

On Nye's Lattice Curvature Tensor

Submitted by arash_yavari on

We revisit Nye's lattice curvature tensor in the light of Cartan's moving frames. Nye's definition of lattice curvature is based on the assumption that the dislocated body is stress-free, and therefore, it makes sense only for zero-stress (impotent) dislocation distributions. Motivated by the works of Bilby and others, Nye's construction is extended to arbitrary dislocation distributions. We provide a material definition of the lattice curvature in the form of a triplet of vectors, that are obtained from the material covariant derivative of the lattice frame along its integral curves.

Elastodynamic Transformation Cloaking for Non-Centrosymmetric Gradient Solids

Submitted by arash_yavari on

In this paper we investigate the possibility of elastodynamic transformation cloaking in bodies made of non-centrosymmetric gradient solids. The goal of transformation cloaking is to hide a hole from elastic disturbances in the sense that the mechanical response of a homogeneous and isotropic body with a hole covered by a cloak would be identical to that of the corresponding homogeneous and isotropic body outside the cloak.