Dear all,
I have some questions about hydrogel mechanical test. After curing, should i put samples in water (submerge in water) or not? I found there's big difference between same samples with different water content. Also, I can't get the tentile strength similar with literature with same materials. My tensile stress is more than 10 times smaller. I really don't know what did I miss.
I would greatly appreciate any help. Thank you!
Two positions at the PhD level are available in solid mechanics in my group in the Mechanical and Industrial Engineering Department at the New Jersey Institute of Technology. I'm looking for motivated students in the area of solid mechanics and materials, with specific application to the multiphysics behavior of polymeric materials. A few key areas are polymeric gels, thermo-mechanics of polymers, shape-memory polymers, chemical reactions occurring in a deforming polymer, and so on. Research topics are broad and cover the full range of theoretical, numerical, and experimen
In the present paper, weakly enforced no-slip wall boundary conditions are revisited in the context of Large-Eddy Simulations (LES) with near-wall modeling. A new formulation is proposed in the framework of weakly enforced no-slip conditions that is better aligned with traditional near-wall modeling approaches than its predecessors. The new formulation is tested on turbulent open-channel flows at friction-velocity-based Reynolds numbers Reτ=395Reτ=395 and 950 benchmark problems.
A live demonstration and presentation on how 3D Inverse Design method supports leading pump and manufacturers develop high suction performance products without sacrificing efficiency.
Dear Colleagues,
The upcoming 28th Nordic Seminar on Computational Mechanics to be held in Tallinn (Estonia) during 22-23 October 2015 is now open for abstract submission. Additional information and templates can be found at the conference website: http://www.ioc.ee/nscm28/. Please take the time to explore the website for more details, check on important dates, and keep yourself up to date on recent changes.
Seamless and minimally invasive three-dimensional interpenetration of electronics within artificial or natural structures could allow for continuous monitoring and manipulation of their properties. Flexible electronics provide a means for conforming electronics to non-planar surfaces, yet targeted delivery of flexible electronics to internal regions remains difficult. Here, we overcome this challenge by demonstrating the syringe injection (and subsequent unfolding) of sub-micrometre-thick, centimetre-scale macroporous mesh electronics through needles with a diameter as small as 100 μm.
Most of the auxetic materials that have been characterized experimentally or studied analytically are anisotropic and this limits their possible applications, as they need to be carefully oriented during operation. Here, through a combined numerical and experimental approach, we demonstrate that 2D auxetic materials with isotropic response can be easily realized by perforating a sheet with elongated cuts arranged to form a periodic pattern with either six-fold or three-fold symmetry.
Recently we published a paper in Physical Review Applied. It can be downloaded from the link
http://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.3.064014
Abstract of the article is below:
Reconfigurable metamaterials -- putting the holes in the right place
Shu Yang1 and Jie Yin2
1Department of Materials Science and Engineering, University of Pennsylvania, E-mail: shuyang [at] seas.upenn.edu (shuyang[at]seas[dot]upenn[dot]edu)
