For a given class of materials, universal deformations are those that can be maintained in the absence of body forces by applying only boundary tractions. Universal deformations play a crucial role in nonlinear elasticity.
Due to the inherent viscoelasticity of constituent matrix and the possibility of long-term storage, space deployable structures made of composites are likely to exhibit relaxation in the stored strain energy, which may degrade their deployment performance. This paper presents a bottom-up finite element based multiscale computational strategy that bridges the experimentally measurable properties of constituent fibers and matrix to numerical predictions of viscoelastic behavior of composite laminates and general shell structures.
To be published on
Civil Engineering Research & Technology
ISSN: 2754-4982
I am happy to share our recent work, that has been published in the Physical Review B journal. I would be happy to share the paper with anyone interested, let me know if you cannot access the paper otherwise.
PRB link: https://journals.aps.org/prb/pdf/10.1103/PhysRevB.105.195141
Arxiv Link: https://arxiv.org/abs/2202.00930
Dear iMechanicians,
I would like to share our recent work published in Phys. Rev. Fluids on the statics and dynamics of droplets on lubricated surfaces:
Droplets on lubricated surfaces: The slow dynamics of skirt formation
Zhaohe Dai and Dominic Vella
Notched micro-cantilever beam fracture (MCF) experiments are increasingly being used to measure fracture toughness of materials at the micro-scale and draw conclusions about size-effects in them. In our recent paper published in Acta Materialia, 'Size effects and failure regimes in notched micro-cantilever beam fracture', we elucidate the failure regimes in MCF experiments and discuss the conditions for validity of MCF tests.
50 days of the free download link
https://www.sciencedirect.com/science/article/pii/S2352492822005682?dgc…
Permanent link
https://www.sciencedirect.com/science/article/abs/pii/S2352492822005682
We present a study on planar equilibria of a terminally loaded elastic rod wrapped around a rigid circular capstan. Both frictionless and frictional contact between the rod and the capstan are considered. We identify three cases of frictionless contact -- namely where the rod touches the capstan at one point, along a continuous arc, and at two points. We show that, in contrast to a fully flexible filament, an elastic rod of finite length wrapped around a capstan does not require friction to support unequal loads at its two ends.
