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Regarding to the effective elastic tensor form of a double layered perforation panel

Submitted by SHEN Zhiyuan on
Forums
Computational Mechanics Forum

I am studying the effective material property of a double-layered perforation (Fig. 1). The perforation rate is different on the two layers, which are connected via arrays of pillars. Both perforation and pillars are closer packed in y-direction (the beam length direction) than the x-direction (the beam width direction) to render an anisotropic in plane material property. Fig. 1 (b) shows a unit cell of such a periodic perforation.

 

Regarding to use the effective Kirshhoff plate property to model a microbeam

Submitted by SHEN Zhiyuan on
Forums
Computational Mechanics Forum
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Kirshhoff plate
microbeam
vibrational

I am studying the vibrational behaviour of a microbeam made of a polymer (Fig. 1). The beam consists of a paddle part and a tapered part and is fixed at the tapered end.

 

 

 

Fig. 1, a microbeam model.

 

Metastable phase transformation and deformation twinning induced hardening-stiffening mechanism in compression of silicon nanoparticles

Submitted by mohsenzaeem on
research
silicon nanoparticles; phase transformation; deformation twinning

The compressive mechanical responses of silicon nanoparticles with respect to crystallographic orientations are investigated by atomistic simulations. Superelastic and abrupt hardening-stiffening behaviors are revealed in [110]-, [111]- and [112]-oriented nanoparticles. The obtained hardness values of these particles are in good agreement with the experimental results. In particular, [111]-oriented particle is extremely hard since its hardness (∼33.7 GPa) is almost three times greater than that of the bulk silicon (∼12 GPa).

An inspiring seminar by Prof. Huajian Gao -- Mechanics as an Enabling tool in bioinspired materials and biological interactions of nanomaterials

Submitted by Mike Ciavarella on
research
bioinspired
nanomaterials
adhesion
gao

Professor Huajian Gao of Brown University speaks at MIT Distinguished Seminar Series (March 2016).

It is a unique opportunity to enjoy the many important recent achievements of Huajian's group.

Mechanics as an Enabling tool in bioinspired materials and biological interactions of nanomaterials

Here.

Not to be missed!

Call for abstracts, WCCM 2018 MS411: Concurrent multiscale modeling in solids and structures: coupling methods from micro to macro scales.

Submitted by Alejandro Mota on

Dear colleagues and friends,

 

On the occasion of the 13th World Congress on Computational Mechanics (WCCM 2018, http://www.wccm2018.org) to be held in New York City on July 22-27, 2018, we are organizing the mini symposium

 

Concurrent multiscale modeling in solids and structures: coupling methods from micro to macro scales (MS 411).

 

Fracture mechanism in notched metal

Submitted by Jabar on
Forums
Fracture Mechanics Forum
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Plasticity
metal
crack
initiation
pripagation

G'day all

Having a metal element with a notch like crack (assume sharp one, exhibits plasticity),  what are the actual fracture mechanism (the phases the crack goes through) in the total fatigue-life. 

please comment on these scenarios:

1- crack initiation life calculated from the (S-N, e-N), then using LEFM/EPFM to determine the cycles for the crack propagation to failure...

Q/ how to find the crack length between the two phases, I mean from which stresses and at which crack length we start the crack propagation life estimation.

Deadline - December 31, 2017 : Call for abstracts : WCCM 2018 , New York City : Mini-symposium 1203 : Mechanics and Physics of 2D Crystalline Materials

Submitted by Dibakar Datta on
conference
WCCM
2D materials
conference; wccm; nanomechanics

Dear colleagues, 

We invite you to present your research work at the mini-symposium - "Mechanics and Physics of 2D Crystalline Materials" (Session ID: 1203) at the World Congress on Computational Mechanics (WCCM XIII) in New York City from July 22-27th, 2018.

IUTAM Symposium on Architectured Materials Mechanics: Call for abstracts

Submitted by Francois Barthelat on
conference

This "Architectured Materials Mechanics" IUTAM (http://iutam.org/) Symposium will take place September 17-19, 2018 in downtown Chicago, Illinois. It aims to provide a state of the art on the engineering science (design, fabrication, mechanics) of architectured materials including (but not limited to): lattice materials, metamaterials, origami, topologically interlocked materials and bioinspired materials. The list of invited speakers can be found on the symposium website:

Two new PhD positions in bioinspired architectured materials and structures, McGill University

Submitted by Francois Barthelat on
education
bio-inspired materials & design
architectured materials
fracture mechanics
ceramics
glasses
Composites

We have new openings for two PhD students –fully funded - in the Laboratory of Advanced Materials and Bioinspiration at McGill University, starting Fall 2018 (Application deadline: 01/15/2018)

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