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mohsenzaeem's picture

Strain-induced work function in h-BN and BCN monolayers

Thomas, M.S. Manju, K.M. Ajith, S.U. Lee and M. Asle Zaeem. Strain-induced work function in h-BN and BCN monolayers.  Physica E: Low-dimensional Systems andNanostructures 123 (2020) 114180 (9 pages) 


Teng Li's picture

EML Webinar by Prof. Norman Fleck on May 27, 2020

EML Webinar on May 27, 2020 will be given by Prof. Norman Fleck at the University of Cambridge via Zoom meeting. Discussion leader: Vikram Deshpande, Cambridge.

Title: New Horizons in Microarchitectured Materials

Bin Liu's picture

Intrinsic-to-extrinsic transition in fracture toughness through structural design: A lesson from nature

Published in Extreme Mechanics Letters: Catastrophic failure of materials and structures due to unstable crack growth could be prevented if fracture toughness could be enhanced at will through structural design, but how can this be possible if fracture toughness is a material constant related to energy dissipation in the vicinity of a propagating crack tip.

skumaar's picture

PhD Position in Composites and Additive Manufacturing at the University of Glasgow

The James Watt School of Engineering of the University of Glasgow is seeking a highly motivated graduate to undertake an exciting 3.5-year PhD project entitled, ‘multifunctional cellular composites enabled by 3D printing’. The objective of the project is to design additive manufacturing-enabled microarchitected composites with unprecedented properties optimized for location-specific structural and functional requirements for a multitude of applications. Experience and/or a strong interest in one or more of the following areas are

mokarram76's picture

EPSRC Funded PhD position for 4 years @ Swansea University, UK


I am looking for a good PhD student in the area of materials science/polymer science/computational engineering/mechanical engineering. The position is fully funded by EPSRC and ORE Catapult for 4 years.

SwarnavaGhosh's picture

Influence of thermomechanical loads on the energetics of precipitation in magnesium aluminum alloys published in Acta Materialia

Dear Colleagues,

Here is the link to a recently published paper in Acta Materialia titled, "Influence of thermomechanical loads on the energetics of precipitation in magnesium aluminum alloys".

Authors: Swarnava Ghosh and Kaushik Bhattacharya





Nanoindentation processes in full view

The microelectronics revolution is one of the most influential drivers of current industrial developments. To probe the mechanical properties of ever shrinking materials and components, nanoindentation has come to be an omnipresent and indispensable method. In a recent combined experimental and computational approach, an international team of scientists was for the first time able to resolve the dynamic atomistic processes taking place at the elastic-plastic transition during nanoindentation.

Legato team fights COVID-19 in Luxembourg

Dear all,

An update on the at work in the COVID19 response in Luxembourg. 

Check out a joint venture between Kyoto and Luxembourg. 

Ramathasan Thevamaran's picture

Environmentally induced exceptional points in elastodynamics

We study the nature of an environment-induced exceptional point in a non-Hermitian pair of coupled mechanical oscillators. The mechanical oscillators are a pair of pillars carved out of a single isotropic elastodynamic medium made of aluminum and consist of carefully controlled differential losses. The interoscillator coupling originates exclusively from background modes associated with the “environment,” that portion of the structure which, if perfectly rigid, would support the oscillators without coupling.

Ramathasan Thevamaran's picture

Independent control of dynamic material properties by exploiting structural hierarchy and intrinsic structural gradients

Achieving high damping and stiffness is challenging in common materials because of their inter-dependent scaling. Controlling extreme mechanical waves requires synergistically enhanced damping and stiffness. We demonstrate superior damping and stiffness in vertically aligned carbon nanotube (VACNT) foams that are also independently controllable by exploiting their synthesis-tailored structural hierarchy and structural gradients. They exhibit frequency- and amplitude-dependent responses with dramatically tunable dynamic stiffness while maintaining constant damping.

Ramathasan Thevamaran's picture

Superior Energy Dissipation by Ultrathin Semicrystalline Polymer Films Under Supersonic Microprojectile Impacts

Distinct deformation mechanisms that emerge in nanoscale enable the nanostructured materials to exhibit outstanding specific mechanical properties. Here, we present superior microstructure- and strain-rate-dependent specific penetration energy (up to ∼3.8 MJ/kg) in semicrystalline poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) thin films subjected to high-velocity (100 m/s to 1 km/s) microprojectile (diameter: 9.2 μm) impacts.

Teng Li's picture

EML Webinar by Prof. Katia Bertoldi on May 13, 2020


EML Webinar on May 13, 2020 will be given by Prof. Katia Bertoldi at Harvard University via Zoom meeting. 

Ajeet Kumar's picture

A singularity free approach for Kirchhoff rods having uniformly distributed electrostatic charge

We present a singularity free formulation and its efficient numerical implementation for the spatial deformation of Kirchhoff rods having uniformly distributed electrostatic charge. Due to the presence of continuously distributed charge, the governing equations of the Kirchhoff rod become a system of integro-differential equations which is singular at every arc-length. We show that this singularity is of removable type which, ones removed, makes the system well defined everywhere. No cutoff length or mollifier is used to remove this singularity.

emuna's picture

Circumferential instabilities in radially incompatible tubes

The full paper can be found at:


Geometric incompatibilities are ubiquitous in natural structures and are recently being exploited in synthetic

structures to enhance the performance of soft systems. In this work we focus on infinitely long bi-layer

Teng Li's picture

EML Webinar by Prof. Xuanhe Zhao on May 6, 2020

EML Webinar on May 6, 2020 will be given by Prof. Xuanhe Zhao at MIT via Zoom meeting. 

Title: Extreme Mechanics of Soft Materials for Merging Human-Machine Intelligence

Antonio Papangelo's picture

Self-excited vibrations due to viscoelastic interactions

Self-excited vibrations represent a big concern in engineering, particularly in automotive, railway and aeronautic industry. Many lumped models have been proposed over the years to analyze the stability of such systems. Among the instability mechanisms a falling characteristic of the friction law and mode coupling have been shown to give friction-excited oscillations. The mass-on-moving-belt system has been studied extensively in Literature, very often adopting a prescribed form of the friction law and linearizing the contact stiffness.

Parag Tandaiya's picture

Mechanistic origins of work hardening in shape memory alloy particle reinforced ex-situ bulk metallic glass matrix composites

Monolithic Bulk Metallic Glasses (BMGs) exhibit strain softening or elastic-perfectly plastic response under uniaxial loading. However, shape memory alloy particle reinforced BMG matrix composites show strong work hardening in experiments. In our recent paper published in Scripta Materialia, we explain the Mechanistic origins of work hardening in shape memory alloy particle reinforced ex-situ bulk metallic glass matrix composites through three dimensional finite element simulations.

santiago.orrego's picture

Bioinspired Materials with Self‐Adaptable Mechanical Properties

Dear iMechanica,

We are very excited to share the news that our recent work on bioinspired materials with self‐adaptable mechanical properties is published in Advanced Materials.

The work was done in collaboration with Prof. Kang from Johns Hopkins University


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