homogenization

In differential geometry, rigidity theory investigates whether a surface can deform by pure bending without stretching. The central problem is to find or disprove the existence of isometric deformations.

Classical examples in the "discrete" category include:

A comprehensive thesis on hydrogen embrittlement authored by Michele De Giosa, Università del Salento, Italy, published exclusively by CYBERNET ⇒ Read Here

Abstract

Successful applicants will work on the mechanics and thermodynamics of porous solids undergoing reactive flow within the scope of the DOE-funded center on Geo-processes in Mineral Carbon Storage (GMCS, https://gmcs.umn.edu). The mission of GMCS is to develop the fundamental science and engineering capability that will lead to realizing the full potential for large-scale subsurface storage of CO2 via mineralization.

"S15: Advanced modelling techniques: Higher-order continua" organised by Samuel Forest (Mines ParisTech CNRS) and Lorenzo Bardella (University of Brescia) http://emmc19.org/symposium-s15.html  

Abstract submission deadline: December 22nd, 2023, http://emmc19.org/submissions.html

Dear colleagues, 

We invite you to read our recent article, which proposes a multiband homogenization scheme and has been accepted to appear in JMPS (https://www.sciencedirect.com/science/article/pii/S002250962200182X)

Multiband homogenization of metamaterials in real-space: Higher-order nonlocal models and scattering at external surfaces

I have a few positions (funded by AFRL, ARO, etc) for MS or PhD (preferred) students at the University of Tennessee Space Institute (UTSI) and University of Tennessee Knoxville (UTK). The positions should start in January 2022 or at the latest Fall 2022. One of the positions requires US citizenship. The projects are in the following general areas:

I would like to share another article from my group just published in CMAME. I think this is an interesting approach towards the automatic generation of constitutive laws for arbitrary microstructures:

https://authors.elsevier.com/a/1bxlSAQEIt1ls

The article focuses on how to systematically create constitutive laws using only:

1) Available microstructural models

2) Machine learning techniques

The positions: I am looking to support two PhD students to work with me towards a mechanical understanding of morphing structures such as origami tessellations and lattice materials and metamaterials. By "understanding" I mean anything relevant to the theoretical and numerical modeling of these structures, in static and dynamic regimes, within the context of elasticity whether linearized or not as well as the fabrication and testing of toy models necessary to assess that "understanding".

Dear Mechanician,

A novel method for the identification of higher-order continua equivalent to a Cauchy composite has been published, as a result of the collaboration between the following two ERC projects:

http://erc-instabilities.unitn.it

http://musam.imtlucca.it/CA2PVM.html

Full paper:

A PhD scholarship is available at PIMM laboratory to work on the topology optimization of lattice structures obtained by additive manufacturing.

See the file attached for description.

The successful candidate should have obtained a Master's degree (or equivalent) with a strong background in computational mechanics, materials science, mechanical engineering or any related field; although prior knowledge of the French language is not mandatory, spoken and written English proficiency is needed.

Applications are sought for one Post-Doctoral Researcher at University of California, San Diego (USA) to join the M2DO research lab. The primary research focus is to develop topology optimization for multiscale and multiphysics problems optimizing materials and structures.

Relevant research background in the following areas are encouraged to apply:

We've recently published an open access journal paper that looks at the mechanics of sutures used to repair severed tendons. A homogenization strategy is used to derive effective elastic properties for tendon fibrils and intracellular matrix. We have found that regions of high stress correlate with the regions of cell death (necrosis) that are sometimes observed in patients.

If this is of interest, please feel free to view the paper here.

This paper presents a homogenization-based constitutive model for the mechanical behavior of particle-reinforced elastomers with random microstructures subjected to finite deformations. The model is based on a recently developed homogenization method (Avazmohammadi and Ponte Castaneda 2013; J. Elasticity 112, 1828–1850) for two-phase, hyperelastic composites, and is able to directly account for the shape, orientation, and concentration of the particles.

Hello,

I read that "In general, even if the materials on the micro-level are isotropic, the effective 

material can show anisotropic behavior. A general anisotropic linear elastic material 

may have twenty one independent material parameters.''

If I understand my results correctly then simple structures like ''ball in the unit cell'' result in orthotropic material.

I am a bit puzzled - what would be the simplest structure that would result in anisotropic material behaviour?

Politecnico di Milano 

Department of Civil and Environmental Engineering

Postdoc position in Solid/Computational Mechanics

Fixed term position for up to 18 months

Salary: 25,000 Euro per annum

In 2012 and 2013 we organized very successful Workshops on
"Physics-based material models and experimental observations" funded
by the European Union's Enlargement programme. We cordially invite you to
submit an abstract to the 3rd International Workshop on Physics Based
Material Models and Experimental Observations to be held on 2-4 June
2014 in Cesme-Izmir/Turkey.

Dear all,

Please find enclosed our paper which is published on Journal of Multiscale Modelling
Vol. 3, No. 4 (2011) 1–42 which gives an overview of state of the art multiscale techniques for material modeling. 

The paper discusses the following topics: homogenization, Representative volume element, computational homogenization (Fe2 methods) for both both bulk materials and strong discontinuities. 

I hope the paper is useful for beginners to the field.

All the bests, 

The attached paper was recently accepted for publication in Journal of the Mechanics and Physics of Solids.