Results 21 to 30 of about 46,692 (260)
Modelling, identification and application of phenomenological constitutive laws over a large strain rate and temperature range [PDF]
, 2013 A review of the different phenomenological thermo-viscoplastic constitutive models often applied to forging and machining processes is presented. Several of the most common models have been identified using a large experimental database (Hor et al., 2013)
GERMAIN, Guénaël +3 more
core +1 more source
Lack of controllability of the heat equation with memory [PDF]
, 2012 We consider a model for the heat equation with memory, which has infinite propagation speed, like the standard heat equation. We prove that, in spite of this, for every T > 0 there exist square integrable initial data which cannot be steered to hit zero ...
Andrei Halanay, Pandolfi, Luciano
core +1 more source
Study on Dynamic Constitutive Model of Weakly Consolidated Soft Rock in Western China
Shock and Vibration, 2020 To obtain the impact mechanical response and establish the dynamic damage constitutive relationship of frozen sandstone at low temperature conditions, the impact test of Cretaceous red sandstone under different temperatures was conducted using a split ...
Lei Wang +3 more
doaj +1 more source
On the modelling of highly elastic flows of amorphous thermoplastics [PDF]
, 2009 Two approaches to the kinematic structuring of constitutive models for highly elastic flows of polymer melts have been examined systematically, assuming either: (1) additivity of elastic and viscous velocity gradients or (2) multiplicability of elastic ...
Buckley, Christopher +6 more
core +1 more source
High Temperature Materials and Processes, 2018 Constitutive analysis for hot working of BFe10-1-2 alloy was carried out by using experimental stress–strain data from isothermal hot compression tests, in a wide range of temperature of 1,023~1,273 K, and strain rate range of 0.001~10 s–1.
Cai Jun +4 more
doaj +1 more source
Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment [PDF]
, 2013 This paper presents a review of creep cavitation and rupture of low Cr alloy and its weldment, particular in the heat-affected zone (HAZ). Creep damage is one of the serious problems for the high temperature industry.
Xu, Qiang +6 more
core +1 more source
Establishment of constitutive equation of medical AZ81 magnesium alloy [PDF]
MetalurgijaThe hot deformation characteristics of deformed AZ81 magnesium alloy were studied by hot compression deformation on Gleeble-3800 thermal simulation test machine. The deformation temperatures were set at 300, 350, 400 and 450 °C, and the deformation rates
Q. H. Wang +3 more
doaj +1 more source
High Temperature Materials and Processes, 2019 Constitutive analysis for elevated temperature flow behavior of BFe10-1-2 alloy was carried out by using experimental stress–strain data from isothermal hot compression tests on a Gleeble-3800 thermo-mechanical simulator, in a wide of temperature range ...
Cai Jun +4 more
doaj +1 more source
Prediction of FV520B Steel Flow Stresses at High Temperature and Strain Rates
High Temperature Materials and Processes, 2015 In order to develop reliable constitutive equations for the simulation, the hot deformation behavior of FV520B steel was investigated through isothermal compression tests in a wide range of temperatures from 900 °C to 1100 °C at an interval of 50 °C and ...
Han Xiaolan +4 more
doaj +1 more source
Journal of Materials Research and Technology, 2023 Development of a reasonable constitutive equation is critical to realize accurate numerical prediction of ultrasonic vibration-assisted friction stir welding (UVaFSW) of dissimilar Al/Mg alloys and deepen the understanding of the synchronous interaction ...
Guanlan Zhang +2 more
doaj +1 more source