iMechanica

Nonlinear continuum mechanics allows solving problems beyond the scope of the theory of linear elasticity for solids and the Navier-Stokes theory for fluids. The success of the nonlinear continuum mechanics would be impossible, of course, without its happy marriage to numerical methods that flourished after the computer revolution. Nowadays, the nonlinear continuum approach is used to model fracture.

AbstractHigh-frequency micrometrical vibrations have been shown to greatly influence the adhesive performance of soft interfaces, however a detailed comparison between theoretical predictions and experimental results is still missing. Here, the problem of a rigid spherical indenter, hung on a soft spring, that is unloaded from an adhesive viscoelastic vibrating substrate is considered. The experimental tests were performed by unloading a borosilicate glass lens from a soft PDMS substrate excited by high-frequency micrometrical vibrations.

We are hiring a postdoc to work on the mechanics of solid state batteries. The postdoc will be based at the Mechanics of Materials Lab (Department of Engineering Science, University of Oxford) and work co-supervised by Profs Laurence Brassart and Emilio Martinez-Paneda. A close collaboration with experimentalists in the Pasta Group (Materials Department) is also expected.

Dear Colleagues,

We have positions for multiple Distinguished Postdoctoral Fellows at the University of Wyoming. This position is for interdisciplinary research with a two-year appointment, focusing on AI application with one of the several topic areas.

I am pleased to share our first open-access article of 2025! just published in #ActaMaterialia.

It turns out that friction coefficient 0.25 suggested as universal by Leonardo da Vinci more than 500 years ago has some universaility, as minimum friction coefficient for any granular material: it makes me proud as italian ;) I guess it would be interesting to show this experimental result also theoretically or numerically, any interest? [HTML] 

Dear Colleagues, 

We are organizing a mini-symposium 801 - Recent Trends in Data-Driven and Computational Modeling of Materials Across Scales: From First Principles Calculations to Mesoscale Physics, at USNCCM18, July 20–24, 2025, Chicago. We invite you to submit an abstract at this symposium. The abstract submission deadline is January 15, 2025. Please find the submission portal here:  https://usnccm18.usacm.org/abstract-submission        

We have several openings for PhD positions. The successful candidate will conduct original research in computational fluid dynamics with special focus on AI and multiphase flows. They will develop numerical methods to be run on high-performance computing platforms. The positions are in the Gomez Research Group (https://engineering.purdue.edu/gomez/) in the Department of Mechanical Engineering at Purdue.

Applications

We have an opening for a postdoc position. The successful candidate will have a PhD in Mechanical Engineering or a related field, excellent programming skills, and knowledge of computational mechanics and Large Language Models (LLMs). The positions is in the Gomez Research Group (https://engineering.purdue.edu/gomez/) in the Department of Mechanical Engineering at Purdue.

Applications

Fracture mechanics suddenly provides a step forward to stop climate change. The blogger has often pictured us humans walking on earth, asking ourselves how to get sufficient energy without burning fossil oil and destroying forests. Earth has a crust that is 30 to 50 km thick. Below it, the temperature is 1 to 6 thousand degrees Celsius. We are on the outside of a thin shell and inside is mostly melted rock, forming a sphere with a diameter that is close to 13000 km. For someone seeing this from another solar system, our behaviour must seem strange and pathetic. We have to look inward. 

Wrinkling - Theoretical Foundation, Experimental Characterization and Numerical Modeling

This course is aimed at graduate students, PhD candidates, and postdoctoral researchers in electronics/biomedical/mechanical/civil engineering, materials science, biophysics and applied mathematics. It is also valuable for senior scientists and engineers in academia and industry interested in the fundamental theoretical aspects of wrinkling phenomena, their numerical simulation and experimental characterization.

A scheme for treating the Second Law of thermodynamics as a constraint and accounting for the approximate nature of constitutive assumptions in continuum thermomechanics is discussed. An unconstrained, concave, variational principle is designed for solving the resulting mathematical problem. Cases when the Second Law becomes an over-constraint on the mechanical model, as well as when it serves as a necessary constraint, are discussed.

Postdoctoral positions are available in the department of Structural Engineering at the University of California, San Diego (UCSD) in Prof. Semnani’s research group. We are looking for highly motivated and talented individuals with a recent PhD degree in Civil and Environmental Engineering or Mechanical and Aerospace Engineering.

 The positions are in the areas of computational mechanics, machine learning, geomechanics, material characterization and modeling, and composite materials.

A list of necessary qualifications is below:

We cordially invite you to submit your abstract to our mini-symposium (MS# 1005) for the 18th U.S. National Congress on Computational Mechanics (USNCCM18), to be held in Chicago, IL, from July 20-24, 2025. Our mini-symposium, entitled “Recent Advances in Computational Methods and Theories for Multiphysics Challenges,” is described below. We would be honored if you could contribute to our mini-symposium.

Fully funded postdoc position 

There will be a mini-symposium titled “Modern Computational Methods in Soft Matter Mechanics " as part of 18th U.S. National Congress on Computational Mechanics (USNCCM 2025) in Chicago (July 20-24, 2025). This mini-symposium focuses on modern methods at the intersections of computational sciences and soft matter mechanics, construed broadly. 

Hello:  I would be interested in any comment about this preprint on fibrillar viscoelastic adhesion, originally devised by Schargott Popov and Gorb, where we use for the first time not only the Schapery model for nucleation of cracks, but also the Shrimali and Lopez Pamies, which leads to quite stronger enhancement of adhesion (the limit is the square of the Schapery one), and pull-off with no real prior propagation phase.  Propagation with Schapery nucleation criterion is found to be qualitatively similar to the Schapery and Persson-Brener propagation theories, except that the reference ve

We are seeking multiple postdoctoral researchers and Ph.D. students to join our research group in the Department of Mechanical Engineering at Florida State University. Our projects focus on the mechanics of architected materials and advanced lithium-ion batteries. For more information, please see the attached details.

Extreme Mechanics Letters is pleased to announce the Recipient of the 2024 EML Young Investigator Award

The Faculty of Mechanical Engineering and Marine Technologies of the University of Rostock, Germany
is seeking candidates to fill the position of

Professor (W2) of Computational Methods for Fluid Dynamics

for an appointment on 01 April 2026.

We have a PhD position at the Technical University of Denmark. The position is in the area of mechanics of materials, with applications to wind energy and composite materials. The position is for 3 years, starting in Spring 2025. The salary is of the order of 4.500 EUR (minus taxes). The campus is located in Roskilde, 30 km from Copenhagen.

The project will include computational modelling (finite elements) of extra-large wind turbine blades, and numerical analysis of the blade failure mechanisms.

A research fellow position is available at University of Pavia in Italy (contract starting next March 2025). Deadline for application: January 30, 2025.