Hi,
There is an assumption that nanoparticles (e.g., graphene or CNT) change the local properties of polymer (here, epoxy) around them, perturbing the polymer chains. Which (not too expensive) methods exist to explore this assumption experimentally? How can I study the atomistic scale structure of polymer around the graphene sheets, and compare it with rest of polymer?
Leon
Hi,
I am using a steady-state dynamic analysis procedure to model harmonic loading of a structure. I am investigating different material definitions. When I applied transversely isotropic stiffness using engineering constants, I saw a much different response than expected. So, as a test, I compared the following two models which gave DIFFERENT results:
1) Simple cylinder with linear elastic, isotropic material properties (E, v), structural damping (0.05) and density of water.
Dear Colleagues,
We recently have reported first measurements of surface stress evolution in a material as a function of uniaxial time dependent deformation and at temperatures upto 100 degree C using a new analytical technology, Nanomechanical Raman Spectroscopy developed in our lab (Interfacial Multiphysics Lab directed by Dr. Vikas Tomar at Purdue).
In particular, we wanted to bring to your attention the following publications:
hai friends,
me doing engineering design... my project tite is "interaction of stress intensity factor for perpendicular cracks" this is y final yr project....pls guide me finding problem & knowing about the fracture mechanics and the purpose of stress intenssity factor..i really need the ansys analysis procedure for creating perpendicular cracks... pls help me friends ...send some link or web page ..
PLS send details to my mail id ashwin.prabhu1990 [at] gmail.com
Applications are invited for the position of postdoctoral fellow in the area of computational biology, biomechanics, biophysics and rheology. A Ph.D. degree with relevant research experience in the following areas will be preferred:
- Nanomedicine design in silico/in vitro/in vivo
- Computational fluid dynamics (LBM, Immersed Boundary Method)
- Microfluidics and nanofluidics
- Soft matter physics, cell mechanics
- Statistical models for next generation sequencing
- Molecular dynamics
- MRI/PET imaging
Two postdoctoral fellow positions at Northeastern University is available immediately, focused on the analysis of the nonlinear behavior of structures and soft matter using computational mechanics and the development and analysis of active cellular structures, and biomimetic materials. The research will be carried out at the High Performance Materials and Structures Laboratory (http://www.hpmsl.neu.edu/).
Dear iMechanica members,
I am looking for a postdoctoral position to work in an experimental lab mainly focused on fuctional polymer material (like- hydrogels, composities etc.) synthesis.
Currently, I am working as as postdoc at UNC-CH to reveal the physical properties of living polymer material mucins/mucs.
I have completed successfully my PhD from the University of Hokkaido, Japan under the supervision of Professor JP Gong.
The Department of Mechanical Engineering at Villanova University has an opening for a tenure-track position in the area of advanced manufacturing. We are seeking to hire an outstanding individual with strong fundamentals. Areas of interest include small-scale manufacturing, additive manufacturing, and advanced materials design, synthesis, and processing. The primary responsibilities are to develop a vibrant research program and to teach undergraduate and graduate courses. Required are a Ph.D.
DOI: 10.1016/j.carbon.2014.08.026
I just found a utility routine in ABAQUS (GETVRMAVGATNODE) functioned to obtain contact information (e.g. contact pressure) detailed as follows:
