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Anomalous bulging behaviors of a dielectric elastomer balloon under internal pressure and electric actuation

Submitted by tongqing.lu on

When a clamped membrane of elastomer is subject to a lateral pressure, it bulges into a hemispherical balloon. However, for a clamped membrane of dielectric elastomer (DE) under a lateral pressure as well as a voltage through the thickness, it may bulge into a regular hemispherical balloon or an irregular shape. This work focuses on the anomalous bulging behaviors (i.e. the irregular bulging shape) of a DE balloon under electromechanical coupling loading.

PhD positions in mechanics of metamaterials at the University of Minnesota

Submitted by stefanogonella on

PhD positions are available at the University of Minnesota in the group of Prof. Stefano Gonella. The positions are in the general area of mechanics and physics of solids and structures, with emphasis on mechanical metamaterials. Topics of current interest are:

1) Topological metamaterials;

2) Nonlinear waves in metamaterials and architected solids;

3) Tunable and programmable metastructures.

Experimentally informed micromechanical modelling of cement paste: An approach coupling X-ray computed tomography and statistical nanoindentation

Submitted by shavijabranko on

Our group has recently published an article wherein we propose the use of X-ray computed tomography coupled with statistical nanoindentation for simulating the mechanical properties of quasi-brittle materials. The approach is used for simulating tensile properties of hardened cement paste.

Open PhD Position metal cutting

Submitted by jmrodriguezp on

Doctoral POSITION (R1): ANALYSIS AND IMPLEMENTATION OF NEW TECHNIQUES FOR MEASURING TEMPERATURES DURING MACHINING PROCESSES

Doctoral POSITION (R1): MODEL OF FINITE ELEMENTS FOR THE MACHINING OF COMPOSITE MATERIALS

Doctoral POSITION (R1): FINISHing OF PARTS MANUFACTURED BY ADDITIVE MANUFACTURING THROUGH MACHINING

DOCTORAL POSITION (R1): EXPERIMENTAL AND NUMERICAL ANALYSIS OF THE EFFECT OF MACHINING STRATEGIES ON THE DISTORTIONS OF AEROESTRUCTURAL PARTS OF ALUMINUM AND TITANIUM ALLOYS