Results 241 to 250 of about 7,742,171 (287)
Some of the next articles are maybe not open access.
Strain Rates and Material Spins
Journal of Elasticity, 1998This work presents a thorough discussion concerning the definition and properties of various material time rates of Lagrangian strain measures, objective corotational rates of Eulerian strain measures, and related spin tensors needed in the formulation of sophisticated constitutive equations of continuum physics (anelasticity, rheological laws ...
Xiao, Heng +2 more
openaire +2 more sources
Philosophical Magazine A, 1978
Abstract A method of calculating the distribution, and its time dependence, of temperature, strain rate and strain in plastically deforming metals is presented. It is assumed that the strain rate y depends on stress T and temperature T as γ = (const) Tm exp (-E/RT) where m, E and R are constants.
M. Wada, T. Nakamura, N. Kinoshita
openaire +1 more source
Abstract A method of calculating the distribution, and its time dependence, of temperature, strain rate and strain in plastically deforming metals is presented. It is assumed that the strain rate y depends on stress T and temperature T as γ = (const) Tm exp (-E/RT) where m, E and R are constants.
M. Wada, T. Nakamura, N. Kinoshita
openaire +1 more source
Echocardiographic strain and strain rate imaging — Clinical applications
International Journal of Cardiology, 2009Echocardiographic strain and strain rate imaging is a new technology enabling more reliable and comprehensive assessment of myocardial function. The spectrum of potential clinical applications is very wide due to its ability to differentiate between active and passive movement of myocardial segments, to quantify intraventricular dyssynchrony and to ...
Michael, Dandel, Roland, Hetzer
openaire +2 more sources
Strain-rate sensitivity and effects of strain rate in sheet forming
Metals Technology, 1980AbstractThe strain-rate dependencies of flow strength and strain-hardening behaviour are particularly important in sheet-forming operations because they influence strain distribution and necking resistance. Measurements made in uniaxial and biaxial tensile tests on low-carbon steels have shown that strain-rate sensitivity is a function of both strain ...
openaire +1 more source
Exercise-induced strain and strain rate in the distal radius
The Journal of Bone and Joint Surgery. British volume, 2005Strains applied to bone can stimulate its development and adaptation. High strains and rates of strain are thought to be osteogenic, but the specific dose response relationship is not known. In vivo human strain measurements have been performed in the tibia to try to identify optimal bone strengthening exercises for this bone, but no measurements have
Z, Földhazy +4 more
openaire +2 more sources
Aspects of strain measures and strain rates
Acta Mechanica, 1986In finite homogeneous deformation processes, the principal triad generally rotates with respect to a material element during the deformation. The material derivative of the logarithmic strain is no longer simply related to the rate of deformation tensor, and this is exemplified herein.
openaire +2 more sources
Strain, Strain Rate, Torsion, and Twist: Echocardiographic Evaluation
Current Cardiology Reports, 2015Deformation imaging by tissue Doppler imaging (TDI) and speckle-tracking echocardiography (STE) are emerging clinical methods. TDI- and STE-derived parameters, such as myocardial strain and strain rate, as well as torsion and twist, provide detailed information about myocardial function and are associated with cardiovascular morbidity and mortality ...
Anders, Opdahl +3 more
openaire +2 more sources
Strain-Rate Selection in the Constant-Rate-of-Strain Consolidation Test
1981Constant-rate-of-strain (CRS) consolidation tests were performed on remolded kaolinite specimens. The effect of strain rate on CRS test data is shown. A relation between soil parameters and strain rate was developed and used to formulate a strain-rate selection procedure.
openaire +1 more source
Strain hardening rate sensitivity and strain rate sensitivity in TWIP steels
Materials Science and Engineering: A, 2015Abstract TWIP steels are materials with very high strength and exceptional strain hardening capability, parameters leading to large energy absorption before failure. However, TWIP steels also exhibit reduced (often negative) strain rate sensitivity (SRS) which limits the post-necking deformation.
Bintu, A +5 more
openaire +3 more sources
Strain Hardening and ‘Strain-Rate Hardening’
1982The limitations of power-law strain hardening and ‘strain-rate hardening’ descriptions are reviewed. It is found that significant advantages can be gained by using, instead, the Voce relation, especially in the proposed modification that accounts for the rate sensitivities of flow stress and of strain hardening.
openaire +1 more source