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Recent interests in curvature- and stress-induced pattern formation and pattern selection motivate the present study. Surface morphological wrinkling of a cylindrical shell supported by a soft core subjected to axial compression is investigated based on a nonlinear 3D finite element model. The post-buckling behavior of core-shell cylinders beyond the first bifurcation often leads to complicated responses with surface mode transitions. The proposed finite element framework allows predicting and tracing these bifurcation portraits from a quantitative standpoint.

Generate master curve for viscoelasticity

Submitted by augustus on Wed, 04/27/2016 - 20:10

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viscoelasticity; master curve; Prony series

Hello,

I would like to generate a master curve (e.g. of the storage modulus) based on frequency-sweeps experiment for different temperatures.

Basically, I need to determine the shifts in order to construct the master curve. I want to automatize the process with Matlab, instead of shifting the data by hand. And I don't want to use WLF or Arrhenius methods.

I want to determine the shifts for each temperature s.t. I get a smooth master curve (minimize the error using least square).

EUROMECH Conference

Submitted by Mirkhalaf on Wed, 04/27/2016 - 09:44

conference

13 - 16 September 2016, Porto, Portugal

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Plenary Speakers:

Prof. Wing K. Liu, Northwestern University

Prof. Manolis Papadrakakis, National Technical University of Athens

Prof. Marc .G.D. Geers, Technische Universiteit Eindhoven

Prof. Michael Beer, Leibniz Universität Hannover

Prof. Xavier Oliver, Universitat Politècnica de Catalunya

Prof. E.A. Souza Neto, Swansea University

Research Assistant/Associate in Multiphase Lattice Materials (Experimental) (fixed term)

Submitted by clairew3 on Wed, 04/27/2016 - 08:05

job

A position exists for a Research Assistant/Associate in the Department of Engineering, University of Cambridge to work on Multi-phase Lattice Materials (Experimental) (fixed term).

The closing date for applications is 20 May 2016 and further details on the position and how to apply can be found here: http://www.jobs.cam.ac.uk/job/10126/