research
Invitation to a presentation by Prof. Karel Matouš (University of Notre Dame) - June 12, 2-3PM EDT
Dear Colleagues,
I would like to invite you to attend an upcoming presentation on:
“An Adaptive Spacetime Wavelet Method for Multiscale Problems in Fluid and Solid Mechanics”
at the ORNL Computational Mechanics Seminar, given by Prof. Karel Matouš from University of Notre Dame.
The seminar will be held June 12, 2025, 2-3PM EDT.
Article: Turbulence-induced vibration in annular flow of a rigid cylinder mounted on a cantilever beam
This study investigates the fluid–structure interaction of two coaxial cylinders separated by a Newtonian fluid under turbulent axial flow. The theoretical framework treats the inner cylinder as a rigid body mounted on a flexible blade modeled as a Rayleigh beam. The goals of this study are to determine the free vibration modes and frequencies, identify the fluid-elastic instability threshold, and establish an analytical expression for the mean-square displacement of the structure.
Nonlinear Cauchy Elasticity
Most theories and applications of elasticity rely on an energy function that depends on the strains from which the stresses can be derived. This is the traditional setting of Green elasticity, also known as hyper-elasticity. However, in its original form the theory of elasticity does not assume the existence of a strain energy function. In this case, called Cauchy elasticity, stresses are directly related to the strains. Since the emergence of modern elasticity in the 1940s, research on Cauchy elasticity has been relatively limited.
Discussion of fracture paper #44 - Flexo & piezoelectric effects and cracks
The Curie brothers, Pierre and Jacques, discovered the piezoelectric effect in 1880. The phenomenon has been exploited in many useful applications, such as for the pickup on the gramophone that registers the sound when it follows the winding groove in the vinyl record surface. It is also used in lighters that ignite a gas when the voltage gap between different locations exceeds the limit to produce a spark. When things are made smaller and smaller, passing mm's, microns down to nano scales, the piezoelectric effect is surpassed by the flexoelectric effect.
Size-dependent finite-deformation crystal plasticity
We have a new, slightly different perspective on the basis of size-dependent, finite-deformation crystal plasticity. If you are interested and have time to check it out, I’ll be happy to discuss it:
Active twisting for adaptive droplet collection
Many xeric plant leaves exhibit bending and twisting morphology, which may contribute to their important biological and physical functions adapted to drought and desert conditions. Revealing the relationships between various morphologies and functionalities can inspire device designs for meeting increasingly stringent environmental requirements.
PhD Opportunity in Next-generation Metafoundations for Enhanced Seismic Protection of Nuclear Power Plants considering Soil-Structure Interaction
Prof. Oreste Bursi, Full Professor at the University of Trento (Italy) and Dr. Davide Noè Gorini, Assistant Professor at the University of Trento, are seeking a highly motivated PhD student to join their research group on Hazard protection of Civil Engineering Structures.
A nonlinear toroidal shell model for surface morphologies and morphogenesis
Biological tissues with core–shell structures usually exhibit non-uniform curvatures such as toroidal geometry presenting interesting features containing positive, zero, and negative Gaussian curvatures within one system, which give rise to intriguing instability patterns distinct from those observed on uniformly curved surfaces. Such varying curvatures would dramatically affect the growing morphogenesis.
EML Editorial Policy Update
Length of regular research papers should be less than 4000 words; total number of figures is limited to 6.
Submissions not in compliance with the limits will be automatically “rejected without review”.
If the editors feel the submission has scientific merits but over the page/figure limits, they can suggest that the authors reformat the article (reduce or combine figures, reduce length) and resubmit. In that case, the authors should resubmit to the same editor since the submission may be flagged for “duplicate submission”.