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Fracto-emission in lanthanum-based metallic glass microwires under quasi-static tensile loading

Plastic deformation in metallic glasses is highly localized and often associated with shear banding, which may cause momentary release of heat upon fracture. Here, we report an explosive fracture phenomenon associated with momentary (∼10 ms) light emission (flash) in Lanthanum-based (LaAlNi) metallic glass microwires (dia. ∼50 μm) under quasi-static tensile loading.

2016 Ted Belytschko Applied Mechanics Award - Professor Andrea Prosperetti

The Executive Committee of the ASME Applied Mechanics Division is pleased to announce and congratulate Professor Andrea Prosperetti, Charles A. Miller, Jr. Distinguished Professor of Mechanical Engineering, Johns Hopkins University, as the recipient of the 2016 Ted Belytschko Applied Mechanics Award.

2016 Thomas J.R. Hughes Young Investigator Award - Professor Pedro M. Reis

The Executive Committee of the ASME Applied Mechanics Division is pleased to announce and congratulate Professor Pedro M. Reis, Gilbert W. Winslow Associate Professor, Massachussetts Institute of Technology, as the recipient of the 2016 Thomas J. R.

Qiming Wang's picture

A Constitutive Model of Nanocomposite Hydrogels with Nanoparticle Crosslinkers

A Constitutive Model of Nanocomposite Hydrogels with Nanoparticle Crosslinkers

Qiming Wang, Zheming Gao

Email: qimingw@usc.edu

Qiming Wang's picture

Beyond Wrinkles: Multimodal Surface Instabilities for Multifunctional Patterning

Beyond Wrinkles: Multimodal Surface Instability for Multifunctional Patterning

Qiming Wang, Xuanhe Zhao

Email: qimingw@usc.edu, zhaox@mit.edu

Cohesive zone model

Hi, 

I'm actually working on numerical modeling of  damage in adhesively bonded joints.  I found three basic approaches for it in litterature 

_Continuum approcha

_local approach

_Hybrid CZM_ XFEM approach

I'm trying a model on local approach, but i faced a problem which consits of overlapping continuum adhesive layer and adherends elements when cohesive elements get fully damaged

I need a suggenstion on how to hadnle this problem.

Thanks in advance

Stephan Rudykh's picture

Call for abstracts: SES symposium on "Soft Materials"

Dear Colleagues,

The 53rd Annual Technical Meeting of the Society of Engineering Science will be hosted  by the University of Maryland (UMD) during 4-7 October 2016. As part of this meeting, we are organizing a symposium to address recent experimental, computational, theoretical, and manufacturing advances on the mechanics and physics of soft materials. Topics of particular interest include:

3 Research Fellowships at University of Southampton for a European Project on Smart Bearings

Looking to take the next step in your academic career? Look no further – three exciting opportunities are available for ambitious researchers to join the UK’s most dynamic research groups for engineering research and education. 

Amit Pandey's picture

Concept of Yield Point or Elastic Limit?

A similar discussion on this forum raised many interesting point about- Stress or strain: which one is more fundamental?

http://imechanica.org/node/1001 

On a similar note I would like to address this decade old fundamental question on how do we define yield point of a material?  

 

2 PhD and 4 Postdoc positions in mechanics of composites @ Ghent University (Belgium)

Two PhD (4 years) and four Postdoc (2-4 years) vacancies are available in the composites research group at Ghent University in Belgium. The different open positions deal with composite heat exchangers, simulation of large wind turbine blades, fatigue of composites, radically new sensing technologies for composites, business development in lightweight materials for automotive,... More information can be found on http://www.composites.ugent.be/PhD_job_vacancies_PhD_job_positions_compo....

Postdoctoral positions on Predictive Simulations at Purdue University

Purdue University is seeking applications from outstanding candidates to fill several Postdoctoral Scholar positions to work on atomistic and continuum simulations of physical and chemical processes at extreme conditions of pressure and temperature. The successful candidates will join a multidisciplinary team including modelers and experimentalists working at Purdue, Los Alamos National Laboratory and Stanford University.

Award Nominations open for Society for Engineering Science

The Society of Engineering Science oversees several awards and honors to members and eminent scholars of the field. A total of five medals are offered on an annual basis as well as election to Fellow grade of the Society. 

Please visit the website http://ses.egr.uh.edu/node/8 for detailed information and electronic versions of the nomination forms.

SES Fellows Nominations

Certification training on Fatigue Durability and Fracture Mechanics

 

In-Depth, Real-Time Training Programs

 

Online, Offline, Certification Training Programs

 

We offer real time online, offline, classroom, practical training programs. Covering from basic theory to advanced practical implementation of the same. Our team is highly qualified with decades of experience in the field and guided several PhD Scholars and students

www.fatiguedurability.com || Institute of Structural Integrity and Failure Studies

WELCOME TO ISIFS

Design to Life Assessment

Institute of Structural Integrity and Failure Studies engages with the industry, academia and interested community in encouraging the knowledge sharing and news about advanced technology developments to make the engineering community actively participate in resolving the problems faced by industries and publishing the results to achieve competitive expertise in the global scene.

Call for Paper : 2nd International Conference on FatigueDurability India 2016 - 28-30th September 2016

2nd International Conference and Exhibition onFatigue, Durability and Fracture Mechanics

& Symposium on

Condition Assessment / Residual Life Assessment and Extension28 – 30th September 2016 @  DELHI, INDIA

 

 

FatigueDurability India 2016 invites technical papers from all Academicians/ individuals/companies associated with engineering design, analysis, testing, instrumentation, research on Fatigue Durability & Fracture Mechanics or related technologies .

Fangsen's picture

Research Scientist at IHPC A*STAR Singapore

You will be responsible for using numerical methods and computer software to design, develop and validate new devices for a couple of projects. 

Requirements:

  • PhD in Engineering  with good knowledge of fluid dynamics  and solid mechanics
  • Strong background in Vibro-acoustics, Building Ventilation, Fluid Structure Interaction (FSI)
  • Experience in numerical simulation software such as ANSYS (CFX or FLUENT), Virtual Lab / Acoustics, SOLIDWORKS

 

We regret that only shortlisted candidates will be notified.

Viscoelastic damping behavior of structural bamboo material and its microstructural origins

In this study, the intrinsic viscoelastic mechanical behavior of a hierarchical bio-composite, structural bamboo material, was experimentally investigated and correlated with its microstructural constituents and molecular building blocks. The macroscopic viscoelastic responses of bulk bamboo at ambient temperature and dehydrated condition were evaluated through dynamic compression experiments with various loading frequencies, whereas the localized viscoelasticity of bamboo's microstructural phases, viz.

Teng Li's picture

SES2016 is open for abstract submission

Dear Colleagues,

The 53rd Annual Technical Meeting of the Society of Engineering Science (SES2016) will be hosted by the University of Maryland (UMD) during 4-7 October 2016 at the College Park Marriott Hotel & Conference Center.  

group velocity Vs phase velocity

hi to all,

do anyone know about ultrasonic lamb wave group velocity and phase velocity and differences between them?

I appreciate it.

 

vrh59ir's picture

Local integration of 2-D fractional telegraph equation via local radial point interpolant approximation

In this article, a general type of two-dimensional time-fractional telegraph equation explained by the Caputo derivative sense for (1 < α ≤ 2) is considered and analyzed by a method based on the Galerkin weak form and local radial point interpolant (LRPI) approximation subject to given appropriate initial and Dirichlet boundary conditions.

Zhigang Suo's picture

Linear form

These notes are part of my notes on linear algebra.  I believe that textbooks of linear algebra give a bad definition of linear form.  The last section of the notes explain why it is bad.  I also give examples of linear form everyday life and from physics.  Given the vector space of distance, both force and electric field are dual spaces of the space of distance.  They are distict dual spaces of the space of distance, and they are not dual spaces to each other.

Arash_Yavari's picture

Finite Eigenstrains in Nonlinear Elastic Wedges

Eigenstrains are created as a result of anelastic effects such as defects, temperature changes, bulk growth, etc., and strongly affect the overall response of solids. In this paper, we study the residual stress and deformation fields of an incompressible, isotropic, infinite wedge due to a circumferentially-symmetric distribution of finite eigenstrains. In particular, we establish explicit exact solutions for the residual stresses and deformation of a neo-Hookean wedge containing a symmetric inclusion with finite radial and circumferential eigenstrains.

Postdoctoral Position in Mechanics

Employment as an assistant researcher (Post-doc) at the project OPUS from National Centre of Science.

Details: http://www.perlikowski.kdm.p.lodz.pl/project.html

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