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Susmel-Papuga sharp controversy about multiaxial fatigue criteria

Submitted by Mike Ciavarella on
research
Fatigue
multiaxial fatigue
Failure Criteria

I recently came across this sharp controversy between Papuga and Susmel on multiaxial fatigue criteria.  Papuga accuses Susmel of "picking up" data that he likes from the literature, disregarding other data... And of having some constants in the criteria that are set a posteriori as fitting parameters.   Do you know how this ended up?  Anyone else partecipated to the debate?

 

Impact location and quantification on an aluminum sandwich panel using principal component analysis and linear approximation with maximum entropy

Submitted by Alejandro Orti… on
research
impact identification
barely visible impact damage
principal component analysis
linear approximation
maximum entropy
sandwich panel

Paper Accepted for Publication in Entropy

Impact location and quantification on an aluminum sandwich panel using principal component analysis and linear approximation with maximum entropy

V. Meruane, P. Véliz, E. López Droguett, A. Ortiz-Bernardin

Patient-specific total hip replacements

Submitted by Simpleware on
research
corin
total hip replacement
simpleware
synopsys
simulation

Corin’s OPS™ technology now enables the surgeon to understand the individual motion profile of each patient before their surgery. This gives the surgeon the information required to identify, customise and deliver a personalised total hip replacement, specifically designed to optimise biomechanics and functional joint performance. This is driven by a simple imaging protocol, featuring Simpleware software, used to generate key inputs to simulate the unique way in which patients perform their normal everyday activities.

Journal Club for April 2017: Multiscale and Multiphysics Simulation of Hydraulic Fracturing of Gas Tight Shale

Submitted by Congrui Jin on
research

Multiscale and Multiphysics Simulation of Hydraulic Fracturing of Gas Tight Shale

Congrui Jin1 , Weixin Li2 and Gianluca Cusatis3

1        Department of Mechanical Engineering, State University of New York at Binghamton, Binghamton, NY 13902 Email: cjin [at] binghamton.edu (cjin[at]binghamton[dot]edu)

Microscopic and macroscopic instabilities in hyperelastic fiber composites

Submitted by Stephan Rudykh on
research
instability
fiber composites
large deformations

   

V. Slesarenko and S. Rudykh, Microscopic and macroscopic instabilities in hyperelastic fiber composites.  J. Mech. Phys. Solids, 99, 471 – 482 (2017)

Abstract:

A simplified model for railway catenary wire dynamics

Submitted by Flavio Stochino on
research
Structural Engineering
# Finite Element modeling
dynamics of taut cables
railway installation optimisation; modal analysis; analytic model; continuous elastic support

In this paper, a simplified analytic model for the dynamic behaviour of railway catenary wire is presented. The model is discussed and validated with the help of numerical results obtained by a finite element code, for the case of a typical Italian railway installation. The simplified model is convenient from the computational point of view and is useful for sensitivity analysis. Some parametric studies have been developed by considering as free parameters the velocity and the distance of the train pantographs and looking at their effect on catenary dynamics.

Google Maps/Earth Computer Graphics Algorithms for Model Reduction in Mechanics of Materials

Submitted by karelmatous on
research

We present an innovative image-based modeling technique, based on Google Earth like algorithms, to effectively resolve intricate material morphology and address the computational complexity associated with heterogeneous materials. This sharp volumetric billboard algorithm stems from a volumetric billboard method, a multi-resolution modeling strategy in computer graphics. In this work, we enhance volumetric billboards through a sharpening filter to reconstruct the statistical information of heterogeneous systems.

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