University-Academia Partnership- 2 positions in Computational Mechanics A postdoc and a Senior PhD Interns)
Computational Mechanics and Modeling of Composites, fracture, large deformation, machine learning, heat transfer in polymers
research
Vibrations + Contact = Quadratic Nonlinearity
Hello,
Studies of the vibration of a rod in contact with a surface are central to a range of applications from MEMS devices to flexible ocean risers. In our latest paper,
Nate N. Goldberg and Oliver M. O'Reilly Pervasive nonlinear vibrations due to rod-obstacle contact, Nonlinear Dynamics, 2021
Structure Genome: a Unified Multiscale Approach to Bridging Materials Genome and Structural Analysis
After almost seven years development, we have achieved more and more clarity with the concept of structure gene and it governing principles (mechanics of structure genome). My recent talk on MSG summarizes its relations with materials genome, common structural theories, micromechanics, multiscale modeling, as well as its current application to deployable structures, homogeneous 3D elements, machine learning assisted multiscale modeling. You can watch this talk at Youtube https://www.youtube.com/watch?v=7d5LuQrLpCM&t=5s.
Introduction to Unified Mechanics Theory with Applications
If you are interested in learning more about te Unified Mechanics Theory
my book is out in .pdf format. I welcome any comments (good and bad :-))
https://www.springer.com/us/book/9783030577711#otherversion=97830305777…
Summary of the book:
Analytical Model and Experimental Verification of the Interfacial Peeling Strength of Electrodes
Background
The interfacial peeling strength of lithium-ion battery electrodes is a very important mechanical property that significantly affects the electrochemical performance of battery cells.
Objective
To characterize the interfacial peeling strength of an electrode, an analytical model based on the energy balance principle is established by considering the state of charge (SOC), the energy release rate, the tensile stiffness, and the peeling angle.
Achieving selective snapping-back and enhanced hysteresis in soft mechanical metamaterials via fibre reinforcement
When a soft mechanical metamaterial, consisting of a regular array of representative volume elements (RVE), is stressed up to a large strain, the delicately tailored behavior of the RVE does not prevail in the metamaterial due to boundary effect and manufacturing imperfections. A metamaterial sheet comprising RVEs designed for snapping-back behavior exhibits random snapping-through instability when uniaxially stretched. We conceptualize that loss of representativeness of RVE can be avoided by introducing fibre reinforcement to regulate boundary conditions.