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Two-dimensional finite element analysis of elastic adhesive contact of a rough surface

Submitted by rharish on

Adhesive contact of a rigid flat surface with an elastic substrate having Weierstrass surface profile is numerically analyzed using the finite element method. In this work, we investigate the relationship between load and contact area spanning the limits of non-adhesive normal contact to adhesive contact for various substrate material properties, surface energy and roughness parameters. In the limit of non-adhesive normal contact, our results are consistent with published work.

PhD vacancy (4 years) on topology optimization of large 3D printed structures with functionally graded materials

Submitted by wvpaepeg on

Arc welding based additive manufacturing or WAAM techniques are attracting interest from the manufacturing industry because of their potential to fabricate large metal components with low cost and short production lead time. This process exists alongside other high deposition rate metal AM technologies such as powder and wire based DED. While these use either laser or an electron beam as energy source to melt a metal powder or wire, WAAM technologies melt metal wire using an electric arc.

PhD/postdoc vacancy (4 years) on computational mechanics of large wind turbine blades

Submitted by wvpaepeg on

Over the last years, UGent-MMS has developed the stand-alone BladeMesher software for generating finite element models of large wind turbine blades. The software reads in the material data and airfoil data of the wind turbine blade, and automatically constructs the geometry and finite element mesh for the blade. In a next step, the nodal and element information of the finite element mesh is written out to an input file for a commercial finite element solver (Abaqus in this case).

PhD vacancy (3 years) on experimental testing of thermoplastic automotive composites

Submitted by wvpaepeg on

Thermoplastic composites are gaining more and more interest in automotive, aerospace and sports applications, because of the short cycle times and recycling possibilities. Besides short fibre-reinforced thermoplastics, also continuous fibre-reinforced thermoplastic composites are being considered for load-carrying structures. However, their behaviour during manufacturing and during in-service use is very different from the traditional thermoset composites (typically epoxy-based). The mechanical properties of thermoplastic composites are much more sensitive to temperature and loading rate.

Postdoc position in "experimental graphene-based structural composites" at the University of Texas at Austin

Submitted by tehrani on

 

Walker Department of Mechanical Engineering

Cockrell School of Engineering 

 

 

204 E. Dean Keeton Street, C2200 • Austin, Texas 78712 • 512-232-5998 • Fax 512-471-8727 

http://www.me.utexas.edu

 

Postdoc Position in “Graphene-Based Composites: Experimental”

 

Postdoc Position in Soft Electronics and Robotics at Michigan State University

Submitted by ChangyongCao on

The Laboratory for Soft Machines & Electronics (www.caogroup.org) at the MSU has one postdoc associate opening in the areas of soft materials and machines. The research work is expected to be highly multi-disciplinary, and the specific topics includes: Smart materials and structures, Soft robotics, Artificial skins; Energy harvesters, Wearable Electronics, Machine Learning, etc. This position is available immediately.

Characterizing fracture stress of defective graphene samples using shallow and deep artificial neural networks

Submitted by Nuwan Dewapriya on

Abstract: Advanced machine learning methods could be useful to obtain novel insights into some challenging nanomechanical problems. In this work, we employed artificial neural networks to predict the fracture stress of defective graphene samples. First, shallow neural networks were used to predict the fracture stress, which depends on the temperature, vacancy concentration, strain rate, and loading direction.

Nonlinear Mechanics of Thermoelastic Accretion

Submitted by arash_yavari on

In this paper, we formulate a theory for the coupling of accretion mechanics and thermoelasticity. We present an analytical formulation of the thermoelastic accretion of an infinite cylinder and of a two-dimensional block.