Dear iMechanicians, I would like to share our recent work on the poking and bulging of elastic thin sheets that were inspired by the classical indentation test and bulge test. Under clamped boundaries, there have been well-established theories and well-controlled experiments in this field.
Despite being commonly credited with initiating the field of cavitation in elastomers, the famed poker-chip experiments of Gent and Lindley (1959) have yet to be fully explained. One likely reason for their elusiveness is that it had long been presumed that cavitation in elastomers was a phenomenon that could be explained solely on the basis of the elasticity of the elastomer at hand.
Computational Mechanics and Modeling of Composites, fracture, large deformation, machine learning, heat transfer in polymers
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
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.
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:
The interfacial peeling strength of lithium-ion battery electrodes is a very important mechanical property that significantly affects the electrochemical performance of battery cells.
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.
