Reflectance parameters condition the appearance of objects in photorealistic rendering. Practical acquisition of reflectance parameters is still a difficult problem. Even more so for spatially varying or anisotropic materials, which increase the number of samples required. In this paper, we present an algorithm for acquisition of spatially varying anisotropic materials, sampling only a small nu...

Black phosphorus has been revisited recently as a new two-dimensional material showing potential applications in electronics and optoelectronics. Here we report the anisotropic in-plane thermal conductivity of suspended few-layer black phosphorus measured by micro-Raman spectroscopy. The armchair and zigzag thermal conductivities are ∼20 and ∼40 W m(-1) K(-1) for black phosphorus films thicker ...

In this paper, a novel inverse computation approach is proposed to extract the anisotropic plasticity parameters of metal materials by using inverse analysis and dual indentation tests. Based on dimensional analysis and extensive finite element (FE) simulations, four independent dimensionless functions are derived to correlate the anisotropic plasticity parameters with material responses in dua...

An inverse problem is considered to identify the geometry of discontinuities in a conductive material Ω 2 R ⊂ with anisotropic conductivity (I+(K-I)χD from Cauchy data measurements taken on the boundary ∂Ω, where Ω ⊂ D , K is a symmetric and positive definite tensor not equal to the identity tensor and χD is the characteristic function of the domain D. In this study we use a real coded genetic ...

Steady-state creep response in a rotating disc made of Al-SiC particle composite having linearly varying thickness has been carried out using isotropic/anisotropic Hoffman yield criterion and results are comparedwith those using vonMises yield criterion/Hill’s criterion ignoring difference in yield stresses. The steady-state creep behavior has been described by Sherby’s creep law. The material ...

This paper presents the design and analysis of a bioinspired miniature modular Inchworm robot. Inchworm robots play crucial roles in surveillance, exploration and search and rescue operations where maneuvering in confined spaces is required. Rectilinear gaits have been demonstrated with favorable results in terms of stability and small size due to the absence of wheels and tracks; however, exhi...

A comprehensive treatment of the topological derivative for anisotropic elasticity is presented, with both the background material and the trial small inhomogeneity assumed to have arbitrary anisotropic elastic properties. A formula for the topological derivative of any cost functional defined in terms of regular volume or surface densities depending on the displacement is established, by combi...

Isotropic linear and nonlinear fractional derivative constitutive relations are formulated and examined in terms of many parameter generalized Kelvin models and are analytically extended to cover general anisotropic homogeneous or non-homogeneous as well as functionally graded viscoelastic material behavior. Equivalent integral constitutive relations, which are computationally more powerful, ar...

Optical forces constitute a fundamental phenomenon important in various fields of science, from astronomy to biology. Generally, intense external radiation sources are required to achieve measurable effects suitable for applications. Here we demonstrate that quantum emitters placed in a homogeneous anisotropic medium induce self-torques, aligning themselves in the well-defined direction determi...

Creep response in a rotating disc made of anisotropic Al-SiC(particle) composite having linearly varying thickness has been carried out using anisotropic Hoffman yield criterion in present study. The steady state creep behavior is described by Sherby’s constitutive model. The material parameters characterizing difference in yield stresses have been used from the available experimental results i...