Homogeneous and transparent CNF films, fabricated from the (2,2,6,6tetramethylpiperidin-1-yl) oxyl (TEMPO)-modified CNF suspension, were laminated onto wood flakes (WF) based on phenol-formaldehyde (PF) resin and the reinforcement potential of the material has been investigated. The focus was on the influence of CNF film lamination, relative humidity (RH), heat treatment, and anisotropic proper...

We review our studies of elastic lattices driven by an external force F in the presence of random disorder, which correspond to the case of vortices in superconducting thin films driven by external currents. Above a critical force Fc we find two dynamical phase transitions at Fp and Ft , with Fc < Fp < Ft . At Fp there is a transition from plastic flow to smectic flow where the noise is isotrop...

Time-dependent creep stress redistribution analysis of thick-walled FGM spheres subjected to an internal pressure and a uniform temperature field is investigated. The material creep and mechanical properties through the radial graded direction are assumed to obey the simple power-law variation throughout the thickness. Total strains are assumed to be the sum of elastic, thermal and creep strain...

Metallic nickel nanowires with excellent physical properties have been introduced into polydimethylsiloxane (PDMS) matrix to form polymer nanocomposites. Nanowires were synthesized by template-assisted electrochemical deposition. By utilizing ferromagnetic nickel nanowires, small external magnetic field can be used to control their alignment and distribution during composite synthesis. Unlike d...

In this paper, interphases in unidirectional fiber-reinforced composites under transverse loading are modeled by an advanced boundary element method based on the elasticity theory. The interphases are regarded as elastic layers between the fiber and matrix, as opposed to the spring-like models in the boundary element method literature. Both cylinder and square unit cell models of the fiber-inte...

Elastic properties of tendon were assessed by two different approaches. Six fresh bovine Achilles tendon specimens were used. The first approach directly measured Young’s modulus along the transverse direction (Eperpendicular) and the longitudinal direction (Eparallel), using a cyclic compression–relaxation method. Young’s moduli were derived based on the measured strain and stress values. The ...