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Mike Ciavarella's picture

are fractal surfaces adhesive? a new attempt on JMPS

In 2007 I wrote a question in Imechanica, IS THERE NO PULL-OFF FOR ADHESIVE FRACTAL SURFACES?

Clearly, in 2007 this question was too hard to answer.  I pointed there that Fuller and Tabor 1975 asperity theory predicted a weird limit for a true fractal surface, that of no stickiness for any fractal dimension or amplitude, in the limit.

ftr_romeo's picture


The Department of Mechanical Engineering Science,

Faculty of Engineering and the Built Environment is pleased to host



North West, Sun City Resort, South Africa | March 8 - 10, 2019

Teng zhang's picture

Deriving a lattice model for neo-Hookean solids from finite element methods

Lattice models are popular methods for simulating deformation of solids by discretizing continuum structures into spring networks. Despite the simplicity and efficiency, most lattice models only rigorously converge to continuum models for lattices with regular shapes. Here, we derive a lattice model for neo-Hookean solids directly from finite element methods (FEM). The proposed lattice model can handle complicated geometries and tune the material compressibility without significantly increasing the complexity of the model.

Shuman_Xia's picture

Abstract Deadline Extended: SEM Fracture and Fatigue Call for Papers

Dear Colleagues,


The SEM 2019 annual conference abstract deadline has been extended to October 24, 2018. Please see the Call for Abstracts below and consider submitting an abstract.


Joost Vlassak's picture


Applications are invited for a postdoctoral position in the Joost Vlassak group at Harvard University with an expected start date of October 1, 2018. This goal of this position is to develop new calorimetric sensing technologies and use these to study cellular bioenergetics and thermodynamics of materials. This highly interdisciplinary project includes the development of new devices and sensing systems, materials characterization, and cellular biology.

PhD position in modeling of solidification in Ni-base superalloys at the University of Nevada, Reno

One PhD opening is available in the Department of Materials Science and Engineering at the University of Nevada, Reno for a student with a desire to start in Spring 2019. The research group performs advanced theoretical and computational research in the areas of microstructural evolution, phase field method development, crystal plasticity, and computational methods for materials science and mechanics.

Funded PhD positions at the University of Southampton (Marie-Curie Fellows)

Two PhD positions are available at the University of Southampton in the areas of:

(1) Computational modelling of complex structures and structured materials - especially those fabricated using additive manufacturing,


(2) Elastic and acoustic metamaterials using additive manufacturing.

opening for a postdoc fellow

Tissue Mechanics Lab at Georgia Tech has an immediate opening position for a Postdoc fellow. The candidate should have research experience in cardiovascular solid mechanics. Previous experience in machine learning is a plus.  For more information, please contact Dr. Sun at:

Wei Sun, Ph.D, FAHA

Associate Professor of the Wallace H. Coulter Department of Biomedical Engineering 

Zhigang Suo's picture

Chemical bond

The two slides intend to show the quantum mechancal origin of the surface energy.  The slides suplement a course on Fracture Mechanics.

Timothy Truster's picture

Open PhD position in multi-scale process modeling of titanium alloys at the University of Tennessee

We have an open PhD position starting in the Fall semester 2019 at the Computational Laboratory for the Mechanics of Interfaces at the University of Tennessee - Knoxville ( The research topic centers upon the modeling of texture evolution during processing conditions of titanium alloys using dislocation density based crystal plasticity. Efficient computational algorithms will be pursued to couple the specimen/part scale and the mesoscale.

Haitao Zhang's picture

Full-Time Position in Schlumberger – Modeling and Simulation Engineer


Schlumberger has an opening in Sugar Land, Texas for a Modeling and Simulation Engineer. The Modeling and Simulation Engineer will be responsible for developing digital representations (or twins) of physical assets or processes to produce business outcomes. You will need to work seamlessly with a multidisciplinary team and present project progress to various internal and external clients.



Postdoc position in mechanical metamaterials at Sandia

I would like to call your attention to a postdoc opening at Sandia National Labs (Albuquerque, NM;  in the area of structural metamaterials design, fabrication, and testing. We have an exciting new project to explore novel unit cell archetypes and innovative lattice materials.

Postdoctoral vacancy (3 years) on high-frequency vibration techniques for non-destructive inspection of 3D printed metal parts

The use of 3D printed metal structures is taking a very fast ramp-up in industry. General Electric has demonstrated the possibility of printing titanium fuel injectors for their LEAP engine, EADS has printed a nacelle hinge bracket for the Airbus A320, Boeing is printing plastic inlet ducts for high-altitude aircrafts, hip implants and other prosthetics are exploiting the design freedom of additive manufacturing (AM),...

swcranford's picture

Senior Editors Wanted: New Cell Press Journal In Materials Science

Hello iMechanica community!

I am happy to announce the upcoming release of a new journal from Cell Press in the general field of materials science. So new in fact, that the title of the journal is yet to be finalized!

WaiChing Sun's picture

PhD and Postdoc Positions in computational poromechanics at Columbia University

I am seeking a Ph.D. student and/or postdoc associate for a number of projects related to high-strain-rate plasticity and phase-transition of porous media. 

Candidates with demonstrated experience in computational mechanics, poromechanics, and implementation of codes in C++ and python are strongly preferred. Basic understanding of tensor calculus and continuum mechanics is required for the Ph.D. position. Students with track-records of academic achievements are encouraged to apply. 

PhD position in multiscale simulation of clay-polymer composite at UW-Madison

The Department of Civil and Environmental Engineering at the University of Wisconsin-Madison is seeking a PhD student to work on multiscale simulations of clay-polymer composite.

The student will conduct atomistic and mesoscale simulations to support multidisciplinary collaborations. Candidates with experiences in molecular simulations techniques such as molecular dynamics are strongly preferred, although self-motivated students with track-records of academic achievements are encouraged to apply regardless. 

Harold S. Park's picture

Post-Doctoral Position in Computational Modeling of Topological Insulators

I am looking to recruit a highly motivated and independent postdoctoral researcher to study, via the development of new computational techniques, various scientific issues surrounding phononic topological insulators.  The position is available for a 1-year duration, with possible extension to future years depending on the availability of funding.  

Requirements for the position include:

1.  A strong background in computational solid mechanics, and in particular topology optimization techniques (i.e. level set-based)

jsegurado's picture

PhD position in Multiscale mechanical modeling of metals , IMDEA-Materials Institute

IMDEA Materials Institute is non-profit research organization located in Madrid, Spain, to carry out research activities in Materials Science and Engineering. More information can be found 

niaz abdolrahim's picture

Tenure track position at University of Rochester

The department of Mechanical Engineering at University of Rochester is hiring a tenure track faculty at the assistant or associate professor level to start in July 2019. We are looking for candidates with expertise in experimental materials science such as synthesis, processing, characterization, and mechanical testing and design. 

Jingjie Yeo's picture

Effects of CNT size on the desalination performance of an outer-wall CNT slit membrane We investigate the effect of varying carbon nanotube (CNT) size on the desalination performance through slit confinements formed by horizontally aligned CNTs stacked on top of one another. By increasing the CNT size, the results obtained from this study indicate a corresponding increase in the water flow rate, accompanied by a slight reduction in salt rejection performance.

ellio167's picture

Faculty Opening in Aerospace Structures and Advanced Materials at U. Minnesota



 Aerospace Engineering and Mechanics

 University of Minnesota Twin Cities


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