An orthogonal composite material Ω with fibers consists of a matrix and orthothombic distribution fibers. In addition to the properties, fiber properties volume fraction, effective (macroscopic) elastic stress–strain constitutive relation is related direction distribution. Until now, there have been few papers that give an explicit formula macroscopic effect Taking expanded coefficients Fourier...

Abstract. In this paper we derive bounds on the torsional rigidity for coated fiber reinforced shafts. The bounds are used to assess the optimality or suboptimality of fiber reinforcement configurations. This investigation focuses on coated fiber reinforcements with circular cross section. It is shown how the effective antiplane shear modulus and torsional rigidity of each coated fiber are used...

A non-destructive measuring technique to determine the fiber content in hardened steel fiber reinforced concrete is presented. The technique is based on an accurate open-ended coaxial probe reflectometry method for measuring the effective permittivity of the fiber reinforced concrete and on a mixing rule from the classical homogenization theory for deriving the fiber content from the measured p...

Physically-based animation techniques enable more realistic and accurate animation to be created. We present a fully physically-based approach for efficiently producing realisticlooking, natural animations of facial movement, including animation of expressive wrinkles. This involves simulation of detailed models using a GPU-based total Lagrangian explicit dynamic finite element (TLED FE) system...

We present an efficient, user-guided volumetric approximation algorithm, specifically designed for physically-based animation. Our method combines automatic and interactive segmentation methods to give users an intuitive and easy way to approximate 3D meshes. Our approach first constructs the simplified medial axis transform (MAT) of the input mesh object, and segments the medial axis (MA) into...

In this paper, we highlight our past experiences on fast penetration depth computation and its applications in different areas such as physically-based animation, 6DOF haptic rendering and robot motion planning.

Physically-based animation techniques enable more realistic and accurate animation to be created. We present a GPU-based finite element (FE) simulation and interactive visualisation system for efficiently producing realisticlooking animations of facial movement, including expressive wrinkles. It is optimised for simulating multi-layered voxel-based models using the total Lagrangian explicit dyn...

Realism has always been a goal in computer graphics. However, the algorithms involved in mimicking the physical world are often complex, abstract, and sensitive to changes in experimental parameters. We present an interface to a physically-based algorithm, a thin shell animation, which focuses on visualization, experimentation, and control. Through the use of dynamic surface coloring, abstract ...

BACKGROUND Disability is more based on social, rather than medical aspects. Lack of attention and social support may impact on participation of people with physical disability in various aspects and their return to normal life in the society. OBJECTIVES This study was conducted to determine perceived social support and related factors among physically disabled in the city of Tehran. PATIENT...