Google Share on Facebook strain rate [′strān ‚rāt] (mechanics) The time rate for the usual tensile test. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. Want to thank TFD for its existence?Tell a friend about us, ad...
(4.47). Modelling stress–strain relations of porous materials should be made by means of the effective stress tensor in Eq. (4.47). When variations in pore fluid pressures are zero, that is when (fully or partially) drained conditions are ensured during loading, the effective stress coincide ...
By analysing the Karman-Howarth equation for filtered-velocity fields in turbulent flows, we show that the two-point correlation between the filtered strain-rate and subfilter stress tensors plays a central role in the evolution of filtered-velocity correlation functions. Two-point correlation-based ...
Local strains can be obtained from a cloud of grain positions and displacements, which can be tessellated in 3D to yield tetrahedra on which the full strain tensor is defined. The accurate measurement of 3D rotations requires grain-based image correlation [see: 24], which proves more reliable ...
strain and strain rate tensors deformation tensors strain tensors, Green and Almansi strain tensors compatibility condition strain rate and spin tensors strain rate, spin tensors and velocity gradient tensor strain rate tensor based on general strain tensor strain rate and spin tensors, in Lagrang...
Left, Death’s head hawk moth: spike rate change via campaniform sensilla in response to wing movement. Right, Flapping drone: resistance change of crack-based sensor according to wing flapping. b, The state information that can be derived from the wing deformation measured by the crack-based...
A constitutive framework for the non-Newtonian pressure tensor of a simple fluid under planar flows Non-equilibrium molecular dynamics simulations of an atomic fluid under shear flow, planar elongational flow, and a combination of shear and elongational f... R Hartkamp,BD Todd,S Luding - 《Journa...
TT→is the translation matrix, andFis the deformation gradient tensor, which is related to the displacement gradient tensor∇u, as, FF=II−∇uu, (2) whereIIis the identity matrix. Lagrange strain,ε, is expressed as a function of∇uwhen motion and deformation are small, such that, ...
The constant of proportionality relating stress to strain rate is then the coefficient of viscosity η of the fluid. i.e. (12.22)σD=ηε˙D In order to represent a viscoelastic material, therefore, it is necessary to consider a suitable combination of spring and dashpot. One such ...
our model learns not only the whole stress tensor (i.e., multiple components) field but also the corresponding deformed shape (Fig.2C). Learning the mechanics of microstructures with different fiber’s radii (thus, volume fraction), the proposed model can thus accurately predict the small and...