nanocomposites
Seeking postdoctoral researcher - Molecular Dynamics of CNT-nanocomposites
The Irish Research Council (http://www.ircset.ie/tabid/64/default.aspx) has a funding scheme for postdoctoral researchers. I am seeking someone to submit an application to IRCSET to obtain funding to work within my group, in Modelling of CNT-based nanocomposites. The chances of success are high for candidates with a good research record. The deadline for applications is December 8th.
Nancomposite textbook for undergrads ? recommend me one.
Dear All,
I've got to start teaching a masters level programme on nanocomposites, well 7 lectures worth of one anyway. It will serve as an introduction to NCs and briefly review the current stat of the art.
I would like opinions on textbooks to accompany such a module.
Any of you had any good experiences with any particular books ?
Thanks,
Chris
18th Annual International Conference on COMPOSITES/NANO ENGINEERING (ICCE -18), Anchorage, Alaska,USA, July 4-10, 2010
The Eighteenth Annual International Conference on
COMPOSITES/NANO ENGINEERING (ICCE - 18)
ICCE-18 Anchorage, Alaska,USA, July 4-10, 2010
http://myweb.polyu.edu.hk/~mmktlau/ICCE/ICCE_Main.htm
Message from ICCE Chairman
Relation between particle size and debonding stress
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Hi everybody,
do you know where I can find some informations about the relation
between particle size and critical normal stress at the interface particle /matrix
for a particle embedded in a matrix?
I read the Chen's article 'Size effect of particles on the damage dissipation in nanocomposites'
but this article deals with spherical particles. I am studying clay/matrix nanocomposites and I would like to
calculate the relation between clay size and debonding stress.
Thanks,
Cecilia
Particle size and debonding stress
Hi everybody,
do you know where I can find some informations about the relation
between particle size and critical normal stress at the interface particle /matrix
for a particle embedded in a matrix?
I read the Chen's article 'Size effect of particles on the damage dissipation in nanocomposites'
but this article deals with spherical particles. I am studying clay/matrix nanocomposites and I would like to
calculate the relation between clay size and debonding stress.
Cecilia
Immediate PostDoc Position Available: Nanocomposite Modeling and Experiments
A post-doc position is available at the University of Notre Dame in Aerospace and Mechanical Engineering. The project focuses on nanocomposite deformation modeling and performing corresponding experiments using primarily atomic force microscope and X-ray diffractometer. Initial position is for one-year and is extensible for another year contingent upon continued funding. The position offers attractive collaborative opportunities with national labs and material synthesis groups across different universities. Salary is negotiable.
Tensile strength and fracture toughness of nanocomposite materials
Are not as high as we expected although very stiff and strong nanotubes or nanofibers (Young’s modulus E~1000GPa) are added into soft polymer matrices like epoxy (E~4GPa). In our early investigation on the systematic mechanical property characterizations of nanocomposites (Xu et al., Journal of Composite Materials, 2004--among top 5 in 2005;and top 10 in 2006 of the Most-Frequently-Read Articles in Journal of Composite Materials.) have shown that there was a very small increase (sometimes even decrease) of critical ultimate tensile/bending strengths, and mode-I fracture toughnesses in spite of complete chemical treatments of the interfacial bonding area, and uniform dispersions of nanofibers (click to view a TEM image). Similar experimental results were often reported in recent years. Therefore, mechanics analysis is extremely valuable before we make these “expensive” nanocomposite materials. Our goal is to provide in-depth mechanics insight, and future directions for nanocomposite development. Till now, nanocomposite materials are promising as multi-functional materials, rather than structural materials. Here we mainly focus on two critical parameters for structural materials: tensile strength and fracture toughness. We notice that other mechanical parameters such as compressive strengths and Young’s moduli of nanocomposite materials have slight increase over their matrices.
Multi-phase hyperelasticity with interface energy effect
Recently, J. Wang, L. Sun and I have formulated some ideas about the effective properties of heterogeneous materials with surface/interface energy effect, which are shown in the attached file.
Papers in the attached file can be viewed as a two-part paper, called “Multi-phase hyperelasticity with interface energy effect” if it is standalone. Part one of this topic is covered in “A theory of hyperelasticity of multi-phase media with surface/interface energy effect”, which provides theoretical background. Part two is covered in “Size-dependent effective properties of a heterogeneous material with interface energy effect: from finite deformation theory to infinitesimal strain analysis”, with more emphasis on application.