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Journal Club For April 2021: Variational phase-field modeling of brittle and cohesive fracture

The Journal Club for April 2021 presents a concise review of the so-called variational phase-field fracture theory for brittle and cohesive fracture. Topics include the pioneering work of Griffith on brittle fracture in 1920, Barenblatt's cohesive zone model in 1959, to Marigo/Francfort's variational formulation of Griffith's brittle fracture 78 years later and the Bourdin's phase-field regularisation of MF's model. Also discussed is recent models for cohesive fracture, the role of the length scale parameter, solver for the coupled PDEs and some applications.

lijianyu's picture

Journal Club for June 2020: Mechanically instructive biomaterials: a synergy of mechanics, materials and biology


Mechanically instructive biomaterials: a synergy of mechanics, materials and biology

Zhenwei Ma, Jianyu Li

Department of Mechanical Engineering, McGill University, Montreal, Canada


Teng Li's picture

EML Webinar

  • Mark your calendar: every Wednesday at 9:30 am Boston, 2:30 pm London, 3:30 Paris, 10:30 pm Beijing.
  • Join live webinars in two ways: Zoom (for attending the lecture and participating in the discussion) or YouTube Live Stream.
  • Watch videos of past EML Webinars on YouTube or Weibo.

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mkasemer's picture

PhD Position in Computational Crystal Plasticity

The Advaced Computational Materials Engineering Laboratory (ACME Lab), under the Department of Mechanical Engineering at The University of Alabama is seeking qualified candidates for an open PhD position. This position is open to US citizens.

Cemal Basaran's picture

A Review of Damage, Void Evolution, and Fatigue Life Prediction Models

Our new review article [open acess] on damage, void evolution, and fatigue life prediction models. We tried to include everything done in the last 20 years. My apologies if we missed your work.
Metals | Free Full-Text | A Review of Damage, Void Evolution, and Fatigue Life Prediction Models (

H.Chen's picture

Two PhD openings in Computational Solid Mechanics

The Computational Mechanics and Methods Group (CM3) in the Department of Mechanical Engineering at the University of Kentucky is seeking highly self-motivated individuals who have great interests in the broad research area of computational mechanics and methods. Ideal applicants should have strong background in solid mechanics and great interests in computational modeling & simulation using nonlocal meshfree/meshless methods, such as peridynamics.

Job opening at IIT Kharagpur

We are looking for an applicant with Master degree in Mechanical Engineering or allied fields with prior experience in finite element modelling and mechanical/damping characterization.  The position is for a period of up to 36 months, depending on the performance of the candidate. There might be possibility of registering for the MS (by research) or PhD program at the Indian Institute of Technology Kharagpur, if found suitable in the corresponding selection procedure of these programs.

Color coding the vascular canals in bone

Dear Imechanica Members,

I am a PhD student studying the porosity found in animal bones.

As a part of my research I wanted to color code the vascular canals segmented from the bone scans based on their diameter variations using a color map.

I had scanned a bone at a very high resolution of around 1 µm in a Micro CT machine and segmented the vascular canals from the bone scans as shown in the attached image.

I was working with AMIRA/AVIZO software from FEI and CTAN software from Bruker but I could not generate color coding using this softwares

5th International Conference on BioTribology: 26-28 April 2021 (Online)

The program for the joint 5th International Conference on BioTribology (ICoBT) and the 23rd International Conference on Wear of Materials (WOM) is announced. The conference will take place online 26-28 April 2021. Delegates have full access to both conferences.

Registration deadline for live participation: 23 April 2021

For full details and to register, visit

Seeking Help from the community to continue employment in the United States (O 1 VISA)

This is probably not the right question for the forum.

I graduated with a Ph.D degree from Virginia Tech in 2018 and have been working in ASML San Diego since early 2019. I have exhausted all three H1-B lottery attempts (The visa is granted on random selection with 275000 applicants for 85000 spots).

As a results my only way out to continue employment in the US is to apply for an O-1 visa. However, my company attorney feels that my citation number is too low for a successful case.


Eight fully funded Master positions in Computational Mechanics and Materials Science at CEMEF (Mines ParisTech & PSL University)

Advanced Master MAPMOD

Digital Materials and Advanced Processes Modelling

MAPMOD is a one-year full-time postgraduated program in line with industrial needs for high level competences in high added value components or equipment manufacturing in fields such as aeronautics, energy, automotive…

Jie. Yin's picture

Ph.D. positions (2021 Fall and 2022 Spring) at North Carolina State University

Ph.D. positions starting from 2021 Fall and 2022 Spring in YIN group at NCSU.

The research program will focus on soft robotics and mechanical metamaterials. Candidates with high self-motivation, experimental or modeling background and interests in mechanical engineering, materials science and engineering, and mechanics are highly encouraged to apply.


esis's picture

Discussion of fracture paper #29 - Fast Crack Growth in Fibre Reinforced Composites

The outstanding and brilliantly written paper, "Modeling of Dynamic Mode I Crack Growth in Glass Fiber-reinforced Polymer Composites: Fracture Energy and Failure Mechanism" by Liu, Y, van der Meer, FP, Sluys, LJ and Ke, L, Engineering Fracture Mechanics, 243, 2021, applies a numerical model to study the dynamics of a crack propagating in a glass fiber reinforced polymer. The paper is a school example of how a paper should be written. Everything is well described and carefully arranged in logical order.

Mogadalai Gururajan's picture

Maurice Jaswon: link to a biographical note

I recently posted a C code for the solution of Eshelby problem based on the paper by Jaswon and Bhargava.

In the last couple of days, I learnt that Jaswon also worked with Cottrell on solute drag and is one of the pioneers of boundary element method. The following paper by Martin gives a nice introduction to Jaswon and his work -- along with a complete listing of Jaswon's papers. There is also a lovely photograph of Jaswon with R D Bhargava in the paper and the first few references are also a good place for those who want to understand the history of boundary element method.

Postdoctoral position within ERC Consolidator Grant at Helmholtz-Zentrum Hereon - Germany

At the Helmholtz-Zentrum Hereon is a Postdoc (m/f/d) position available within the ERC Consolidator Grant "Modelling Assisted Solid State Materials Development and Additive Manufacturing". Application deadline is April 21st.

More information about the positions can be found under

PhD student (m/f/d) positions within ERC Consolidator Grant at Helmholtz-Zentrum Hereon - Germany

At the Helmholtz-Zentrum Hereon are three PhD student (m/f/d) positions available within the ERC Consolidator Grant "Modelling Assisted Solid State Materials Development and Additive Manufacturing". Application deadline is April 20th.

More information about the positions can be found under

Rashid K. Abu Al-Rub's picture

Postdoctoral Position Available in United Arab Emirates within the Advanced Digital & Additive Manufacturing (ADAM) Center

A postdoctoral fellow research position is availabe immediately in the Advanced Digital & Additive Manufacturing (ADAM) center at Khalifa University in Abu Dhabi in United Arab Emirates. Applicants should demonstrate research capabilities in modeling, experimentation, and testing in the area of additive manufacturing (3D printing). Candidates with research experience related to sandwich panels will be considered with higher priority.

Mogadalai Gururajan's picture

Research Assistant and Research Associate Positions at IIT Bombay

We are looking for applicants with Masters or PhD degrees with expertise in C programming (parallel programming skills are preferred but not essential), numerical solutions of partial differential equations (finite difference / Fourier spectral tehcniques are preferred) and linux based computers and high performance computing clusters (GPU exposure is preferred but not essential). The positions are for a duration of 21 to 24 months.

Mogadalai Gururajan's picture

Eshelby solution: 2-D code for benchmarking

This is a C code based on Jaswon and Bhargava for 2-D solution for the Eshelby problem. Please feel free to write to me in case you find any errors. I am sharing this code under GNU GPL license. In order to upload the code, the file extension is given as txt. Once you download the code, remove the .txt and keep only the .c extension. The command

gcc JaswonBhargava.c -lm

will compile and give you the executable to run.

Funded PhD positions at the University of California, San Diego

Funded PhD positions are available in the department of Structural Engineering at the University of California, San Diego (UCSD) starting Fall quarter 2021 or Winter 2022 in the areas of computational mechanics, data-driven computing, geomechanics, as well as material characterization and modeling. Candidates with bachelor’s or master’s degree in Civil and Environmental Engineering, Mechanical and Aerospace Engineering, Materials Science and Engineering, Petroleum Engineering, Mathematics, Physics or related fields are encouraged to apply.

Antonio Papangelo's picture

On the Effect of Shear Loading Rate on Contact Area Shrinking in Adhesive Soft Contacts

Adhesion and, its interplay with friction, is central in several engineering applications involving soft contacts. Recently, there has been an incredible push towards a better understanding on how the apparent contact area evolves when a shear load is applied to an adhesive soft contact, both experimentally and theoretically. Although soft materials are well-known to exhibit rate-dependent properties, there is still a lack of understanding in how the loading rate could affect the contact area shrinking.

Acta Mechanica Sinica's picture

Aerodynamic Shape Optimization of an Urban Maglev Train

Journal Tittle: Acta Mechanica Sinica

Article Tittle: Aerodynamic Shape Optimization of an Urban Maglev Train 

Authors: Z. X. Sun, M. Y. Wang, L. Y. Wei, F. B. Kong, G. W. Yang




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