The isotropic material closest to a given anisotropic material
نویسندگان
چکیده
منابع مشابه
The isotropic material closest to a given anisotropic material
The isotropic elastic moduli closest to a given anisotropic elasticity tensor are defined using three definitions of elastic distance, the standard Frobenius (Euclidean) norm, the Riemannian distance for tensors, and the log-Euclidean norm. The closest moduli are unique for the Riemannian and the log-Euclidean norms, independent of whether the difference in stiffness or compliance is considered...
متن کاملExperimental, Franc2d, and DDM simulation to determine the anisotropic tensile strength of brittle material
In this paper, a compression-to-tensile load converter device is developed to determine the anisotropic tensile strength of brittle material. A cubic sample with an internal pore was used as the test specimen, and a series of finite element analysis and DDM simulations were performed thereafter to analyse the effect of pore dimensions on the stress concentration, as well as to render a suitable...
متن کاملParameter-Estimation Algorithms for Characterizing a Class of Isotropic and Anisotropic Viscoplastic Material Models
A number of robust, and computationally efficient, algorithms are presented for the development of an overall strategy to estimate the material parameters characterizing a class of complex viscoplastic material models (i.e., rate dependent plastic flow, nonlinear kinematic hardening, thermal/static recovery, isotropic and anisotropic, etc.). The entire procedure is automated through the integra...
متن کاملStatistically reconstructing continuous isotropic and anisotropic two-phase media while preserving macroscopic material properties.
We propose a method to generate statistically similar reconstructions of two-phase media. As with previous work, we initially characterize the microstructure of the material using two-point correlation functions (a subset of spatial correlation functions) and then generate numerical reconstructions using a simulated annealing method that preserves the geometric relationships of the material's p...
متن کاملInterferometric Method to Determine the Birefringence for an Anisotropic Material
A simple interferometric technique was used for measuring the absolute birefringence of an anisotropic material. The sample has constant thickness. It was placed between crossed polarizers and illuminated with a parallel beam of monochromatic light. The resulting interferograms were analyzed to deduce the birefringence and its dispersion across the visible spectrum. A Cauchy formula was applied...
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: Journal of Mechanics of Materials and Structures
سال: 2006
ISSN: 1559-3959
DOI: 10.2140/jomms.2006.1.223