micromechanics

The research group Mechanics of Materials and Structures at Ghent University (UGent-MMS) has 5 vacancies for PhD and postdoc research in the field of fibre-reinforced composites. The vacancies are linked to research on composite hydrogen tanks, micromechanical testing of composites and finite element modelling of textile connections. All research will be conducted with leading companies in the field.

More information can be found on

We are looking for a PhD student for a research project on microscale mechanical characterization of fiber reinforced polymer composites using in-situ microscopic techniques. Much more fundamental insights and measurements at the micro-scale are necessary to enable fully predictive multi-scale modelling and faster adaptation of composites. Therefore, we have developed advanced micromechanical test methods for fibre reinforced polymer composites based on in-situ optical and electron microscopy during loading.

Darren C. Pagan a, Romain Quey b, Matthew P. Kasemer c

a Materials Science and Engineering, The Pennsylvania State University, University Park PA 16802, US

b Mines Saint-Etienne, Univ. Lyon, CNRS, UMR 5307 LGF, F–42023 Saint-Etienne, France

c Mechanical Engineering, The University of Alabama, Tuscaloosa AL 35487, US

1. Introduction

Renheng Bo, Shunze Cao, and Yihui Zhang

Department of Engineering Mechanics, Tsinghua University

1. Introduction

If you are curious about application of machine learning techniques in mechanics problems, our latest paper is probably interesting for you. In this paper, we are proposing a micromechanics-based artificial neural networks model for short fiber composites. You can find the paper here: https://www.sciencedirect.com/science/article/pii/S1359836821001281 

A one-plus-one year post-doctoral position is available at KTH Royal Institute of Technology in Stockholm, Sweden. The project aim is to develop reliable methods for material characterization of the mechanical properties on the micrometer scale.

The application deadline is 2021-04-15.

Apply on the KTH website: https://www.kth.se/en/om/work-at-kth/lediga-jobb/what:job/jobID:386387/where:4/

The ICME Conference 2020, a HxGN LIVE event is a 3-days intensive online conference on October 6-8, 2020 for executives, R&D, manufacturing professionals, engineers, and designers to learn, explore and share about Integrated Computational Materials Engineering (ICME) to enable companies to blur the boundaries between manufacturing, materials and part performance for the optimal design of innovative quality products.

Description:

The goal of this project is to investigate the multi-scale behaviour of clay rocks, going from microscopic to macroscopic scale, with application to underground drilling. The research will be based on multi-scale approach and numerical method allowing to model microstructure media in a double-scale framework (FEMxFEM). Please, see the full description in the attached file here below.

An extended abstract dedicated to nonlocal (in the sense of either Eringen or Silling) micromechanics is attached. It can’t be considered as a review in any sense. It is just a personal vision on a new area of micromechanics, in particularly based on the author’s publications (references on hundreds related papers can be found in the referred publications). The style of the abstract is plausible rather than rigorous that willfully used by the author just for initiation of discussions in the new prospective area of micromechanics.

We have published a paper called "Micromechanical model for prediction of the fatigue limit for unidirectional fibre composites" in Mechanics of Materials. See the link here.

A new PhD position is vacant at the Section of Composites and Materials Mechanics of the Department of Wind Energy at the Technical University of Denmark (DTU). The PhD project will concern damage tolerance of composite materials subjected to static and cyclic loading. The objective is to creacte enhanced fracture resistance by facilitating the formation of multiple cracks with large-scale fiber bridging along the interfaces in a layered composite by controlled mechanical properties by surface treatments.

Project title: Micromechanical modeling of geomaterials by considering the microstructural anisotropy 

Location: Nancy (France), Georessources Laboratory, University of Lorraine

Starting date and duration: September/October, 2018, 3 years

Candidates: First-class undergraduate and master degrees in mechanics, applied mathematics, civil engineering or other related disciplines. The candidates should be motivated by research in theoretical and numerical modeling and have a good background in mathematics, mechanics of materials, finite element method, etc. 

Call for papers: Special issue of IJMCE journal on Multiscale multiphysics modellig of materials

Herein, we report a theoretical study of polymeric nanocomposites to provide physical insight into complex material systems in elastic regions. A self-consistent scheme is adopted to predict piezoresistive characteristics, and the effects of the interface and of tunneling on the effective piezoresistive and electrical properties of the nanocomposites are simulated. The overall piezoresistive sensitivity is predicted to be reduced when the lower interfacial resistivity of multi-walled carbon nanotubes (MWCNTs) and the higher effective stiffness of nanocomposites are considered.

We anticipate an opening for a post-doctoral fellow position in micromechanics based failure modeling of heterogeneous brittle materials. The focus will be on characterizing the roles of flaw distributions on rate-dependent failure in materials such as concrete. The objective is to develop an understanding of failure processes with the aim of designing high performance brittle materials.

I hope this information will be helpful for some researchers. We recently integrated TexGen with SwiftComp, called TexGen4SC, to provide a very easy app to compute thermoelastic properties for textile composites for all the types of woven microstructures which can be generated by TexGen. This tool can achieve RVE analysis accuracy with a very small fraction of its computing time. This tool can respect the finite thickness of a woven fabric. It can be freely launched on any device (smart phones, ipads, etc) connected to Internet.

RVE analysis is popular for computational homogenization. It can be used independently for virtual testing or as a module for multiscale modeling. Its popularity is mainly due to the maturity and acceptance of commercial finite element software. RVE analysis usually requires a 3D domain to obtain 3D properties and local fields. If a 2D RVE is used, only 2D properties and local fields are obtained. To obtain the complete set of properties, multiple analysis is needed. For example, to obtain the complete stiffness matrix, six 3D RVE analyses are needed.

There is an opening for a post-doc in Prof. Shailendra Joshi’s research group at NUS, starting November 2016, in the area of micromechanics of advanced structural steels. An ideal candidate for this position must possess a PhD in mechanical engineering or related field with a strong background in computational materials mechanics.

The Metal Forming and Materials Modelling group wishes to provide a FULLY funded studentship to EXCEPTIONAL candidates to conduct PhD research work in the Mechanical Engineering department, at Imperial College London. The research work will be focused on the development of novel metal forming technologies, e.g.