(open access) C. Cissé and M. Asle Zaeem. An asymmetric elasto-plastic phase-field model for shape memory effect, pseudoelasticity and thermomechanical training in polycrystalline shape memory alloys. Acta Materialia 201 (2020) 580-595.
Dear all,
I would like to ask you for advice. I am about to simulate a pull-through test (see attached picture) of a cladding panel made of a material with highly viscoelastic behaviour. I have parameters for Maxwell model (Prony series) obtained from test. I expect large deformation and probably cone failure (or tearing of the cladding panel). Therefore I would like to use Abaqus/Explicit. The problem is that I cannot use *visco step together with Explicit. Is there any way to solve it?
EML Webinar on 11 November 2020 will be given by Sulin Zhang, Penn State University. Discussion leader: Teng Li, University of Maryland
Title: Mechanobiology: A Tale of Stressed Life
Time: 9:30 am Boston, 2:30 pm London, 3:30 pm Paris, 10:30 pm Beijing on 11 November 2020
Zoom Link: https://harvard.zoom.us/j/271079684
Dear iMechanicians. I hope that the following paper is of interest to you. We develop the first phase field formulation for fracture (and fatigue) in Shape Memory Alloys. Its potential is demonstrated by solving a variety of paradigmatic 2D and 3D boundary value problems, from R-curves to fatigue cracking of a NiTi biomedical stent.
M. Simoes, E. Martínez-Pañeda. Phase field modelling of fracture and fatigue in Shape Memory Alloys. Computer Methods in Applied Mechanics and Engineering 373 (2021) 113504
EML Webinar on 4 November 2020 will be given by Zhigang Suo, Harvard University. Discussion leader: Jimmy Hsia, Nanyang Technological University
Title: Topological adhesion, wet and elastic
Time: 9:30 am Boston, 2 pm London, 3 pm Paris, 10:30 pm Beijing on 4 November 2020
This recently accepted paper, to appear in the Journal of the Mechanics and Physics of Solids, reports our detailed experiments on shock energy absorption of methylcellulose hydrogels. A phenomenological model is developed and validated that allows for a quantitative estimate of the attnuated signal as a function of the gel layer thickness and composition.
Dear colleagues, we have our recent paper, Flower Inspiration: Broad-angle Structural Color through Tunable Hierarchical Wrinkles in Thin Film Multilayers, published on Advanced Functional Materials. The cuticular nano-ridges on certain flower petals can selectively display broad-angle iridescence to enhance pollinators’ foraging efficiency. This paper develops a tunable broad-angle diffracting surface based on hierarchical wrinkling composites.
