research
Variational Dual Solutions of PDE
Equations not arising from a variational principle, as well as ones that arise from functionals that are not bounded above or below, can be endowed with one with favorable properties. The concept, and some examples are listed below:
Postdoctoral Position in Computational and Probabilistic Fracture Mechanics
The Fracture Mechanics and Structural Integrity Research Laboratory (NAMEF) of the Polytechnic School of Engineering at the University of São Paulo (EPUSP) in Brazil has an opening for a 2-year postdoctoral fellow (which may be extended to an additional year depending on funding availability) with a strong background in fracture mechanics and computational modeling of materials starting from February/2025.
Developing Mode I Cohesive Traction Laws for Crystalline UHMWPE Interphases Using Molecular Dynamics Simulations
Our latest paper, "Developing Mode I Cohesive Traction Laws for Crystalline UHMWPE Interphases Using Molecular Dynamics Simulations," is now freely accessible for the next 50 days from this link: https://authors.elsevier.com/a/1k9Pk3In-v14Go
Orientation-dependent deformation and failure of micropillar shape memory ceramics: A 3D phase-field study
I am pleased to share our latest open-access article, just published in Extreme Mechanics Letters.
Transporting cylinders of compressed gas
A common, yet hazardous, method of transporting cylindrical tanks used to carry compressed gas involves rolling both tanks at opposite angles of inclination to the vertical. By propelling one of the tanks while maintaining point contact between the tanks, both tanks can be moved such that their centers of mass move in a straight line as demonstrated in the video below:
https://www.youtube.com/watch?v=Vgn5fv__LAk
In a paper that has just been published
On friction effects and the conditions of failure of adhesion in punch shaped pillars and mushrooms
Considerable research has been conducted on shape of pillar ends for optimal adhesion. In experiments with elastomers it has been found that mushrooms-ended ones are superior to flat-ended ones, but early experiments have suggested an extremely strong scaling in strength with pillar radius (del Campo et al Langmuir;23 :10235-43, 2007). We discuss various theories and experimental results on scaling of strength, and in particular we elaborate recent experiments on single pillars with mushroom ends finding that the scaling on strength is much less surprising.
Nonlinear aerothermoelastic analysis of deployable control fin with actuator stiffness subjected to high-speed compressible flows
I am happy to share our recent paper entitled ‘Nonlinear aerothermoelastic analysis of deployable control fin with actuator stiffness subjected to high-speed compressible flows’ published in the journal Acta Mechanica.
2 post doc positions in Italy --- Regulating adhesion using viscoelastic oscillating contact --- some solutions
We are hiring 2 post-docs soon in Italy at the Department of Mechanics DMMM of the Politecnico di BARI. The subject is here described.