Molecular dynamics study of axial tensile response of crystalline UHMWPE under different loading conditions
Our latest paper is accessible freely for 50 days from this link: https://authors.elsevier.com/a/1jiSx7NHxQiuj
research
Lagrangian approach to origami vertex analysis
Dear colleagues,
We invite you to see the preprint of our new paper Lagrangian approach to origami vertex analysis: Kinematics that will appear in Philosophical Transactions of the Royal Society A. Here we show how the Lagrangian approach to origami facilitates the exploitation of symmetry, formulate reduced order compatibility conditions for some symmetric foldings, and obtain analytical expressions for the kinematics of some degree 6 and degree 8 origami vertices.
Quenched disorder and instability control dynamic fracture in three dimensions
In this work, we show that the combination of material quenched disorder (of finite strength/amplitude and correlation length) and a 2D tip-splitting instability (that gives rise to extra fracture surfaces) is at the heart of the spatiotemporal dynamics of cracks in 3D. Specifically, it is shown to account for the widely observed limiting (terminal) velocity of cracks, mirror-mist-hackle sequence of morphological transitions, crack macro-branching and a 3D-to-2D transition, out-of-plane crack front waves and the properties of micro-branches.
A preprint on erasing the size effect in adhesive friction with re-attachment
Our analysis based on a simple model shows how adhesive friction breaks the size limit dictated by the fracture theory, which can offer insights into understanding the phenomena associated with adhesive friction in various fields, including gecko adhesion, cell adhesion, earthquake, etc.
https://doi.org/10.48550/arXiv.2403.05283
POD–ANN as digital twins for surge line thermal stratification
This paper describes a hybrid proper orthogonal decomposition (POD) and artificial neural network (ANN) strategy to construct digital twins of a pressurizer surge line under thermal stratification conditions. The one-way coupled conjugate heat transfer and thermal stress analysis was conducted by use of parametric modeling and the introduction of the inverse distance weighted interpolation for the grid mapping, which allows for the mapped grids to have the same number of nodes regardless of variations of surge line geometries.
Applied Mechanics Division – Haythornthwaite Foundation Research Initiation Grants 2024
With funding from the Haythornthwaite Foundation, the Executive Committee (EC) of the Applied Mechanics Division (AMD) of ASME is pleased to announce the establishment of the Haythornthwaite Research Initiation Grant Program, targeting university faculty engaged in research in theoretical and applied mechanics that are at the beginning of their academic careers.
Call for Nominations for ASME's Applied Mechanics Division Awards 2024
Dear Colleagues,
We wanted to alert you for the call for nominations of the awards of the Applied Mechanics Division (AMD) of the American Society of Mechanical Engineers (ASME), which are due on September 15th, 2024.
CISM-Città di Udine International Research Fellowships
The International Centre for Mechanical Sciences (CISM), based in Udine (Italy), has opened a call for applications to allow small groups of researchers in mechanics, two to four coming from different institutions, to spend two to four weeks at CISM during the year 2025 to start or to complete a joint research project.
Applicants should hold a PhD on a subject related to Mechanics, and there are no restrictions on their academic seniority.
A fresh perspective on the evaluation of fatigue onset in metals
Many researchers and engineers view mechanical fatigue of metals as a stagnated field, evidenced by the lack of substantially novel design approaches against fatigue in recent decades. However, our current capability to investigate, probe, and model the multiscale mechanisms of fatigue damaging processes may turn out to be pivotal for next-generation paradigms for the assessment of fatigue.