Effective elastic moduli of nanocomposites with prescribed random orientation of nanofibers
نویسندگان
چکیده
منابع مشابه
Effective elastic moduli in solids with high density of cracks
We investigate the weakening of elastic materials through randomly distributed circles and cracks numerically and compare the results to predictions from homogenization theories. We find a good agreement for the case of randomly oriented cracks of equal length in an isotropic plane-strain medium for lower crack densities; for higher densities the material is weaker than predicted due to precurs...
متن کاملImproved Bounds on the Effective Elastic Moduli of Random Arrays of Cylinders
Improved rigorous bounds on the effective elastic moduli of a transversely isotropic fiber-reinforced material composed of aligned, infinitely long, equisized, circular cylinders distributed throughout a matrix are evaluated for cylinder volume fractions up to 70 percent. The bounds are generally shown to provide significant improvement over the Hill-Hashin bounds which incorporate only volume-...
متن کاملOn Effective Moduli of an Elastic Body Containing Periodically
D*kiauaki = Dijkiauaki + /°,% (4) which is Eq. (4.4) of [1], where / is the volume fraction of voids. The average transformation strain, e*, in (4) must, however, be obtained for the case when the stresses (and not the strains) are regarded to be prescribed. Therefore, in the integral equation (2.13) of [1], ek/ must be replaced by ek/ defined by (2) above, if Eq. (4) is used to calculate D*. F...
متن کاملOn RSA Moduli with Prescribed Bit Patterns
We give a polynomial time probabilistic algorithm that constructs an RSA modulus M= pl, where p and l are two n-bit primes, which has about n/2 bits, on certain positions, prescribed in advance. Although the number of prescribed bits is less than in other constructions, this algorithm can be rigorously analyzed while the other approaches remain heuristic. The proof is based on bounds of exponen...
متن کاملEffective Mechanical Properties of Nanocomposites Reinforced With Carbon Nanotubes Bundle
Nanocomposites made of Carbon Nanotube (CNT) bundles have attracted researchers’ attention due to their unusual properties such as: light weight, flexibility and stiffness. In this paper, the effects of straight and rope-shaped bundles on nanocomposite effective mechanical properties are investigated. First, FEA models are created consisting of CNTs with different shapes of straight and rope-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Composites Part B: Engineering
سال: 2005
ISSN: 1359-8368
DOI: 10.1016/j.compositesb.2005.01.003