Results 21 to 30 of about 196,690 (303)
Behaviour of coarse grained soil with rotation path of stress Lode’s angle
Yantu gongcheng xuebao, 2020 In this study, the behaviour of coarse grained soil following the rotation path of stress Lode’s angle is studied under the constant mean stress p and the constant deviatoric stress q in stress space.
ZHOU Yue-feng , PAN Jia-jun , CHENG Zhan-lin , ZUO Yong-zhen
doaj +1 more source
Ellipticity loss analysis for tangent moduli deduced from a large strain elastic–plastic self-consistent model [PDF]
, 2009 In order to investigate the impact of microstructures and deformation mechanisms on the ductility of materials, the criterion first proposed by Rice is applied to elastic–plastic tangent moduli derived from a large strain micromechanical model combined ...
LORRAIN, Jean-Paul +5 more
core +1 more source
Mechanical and Structural Behavior of Copper Subjected to the Flow Forming Process
Archives of Metallurgy and Materials, 2014 W pracy przedstawiono wyniki pomiarów mikrotwardości HV 0,5 i dokumentację strukturalną miedzi przed i po procesie zgniatania obrotowego wydłużającego współbieżnego. Stwierdzono brak umocnienia odkształceniowego wyrobów.
Pawlicki M., Bochniak W.
doaj +1 more source
Work softening of drawn low carbon steel bars
Materials Research, 2001 The work hardening of metals subjected to complex processing paths is different from that in monotonic deformation. Changes in the deformation mode can promote transients in the strain-hardening rate, leading to anomalous softening or hardening of the ...
Maria Teresa Paulino Aguilar +4 more
doaj +1 more source
Strain localization analysis using a multiscale model [PDF]
, 2007 In order to analyze the formability of steels in sheet metal forming, a ductility loss criterion is coupled with a multiscale model. The behavior at the mesoscopic (grain) scale is modeled by a large strain micromechanical constitutive law, which is then
LEMOINE, Xavier +4 more
core +1 more source
CORRESPONDENCE BETWEEN STRAIN PATH AND STRESS PATH IN PLASTIC DEFORMATION
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1996 This paper deals with the connections between the local geometries of associated paths of stress and strain under plastic deformation. This is a classical topic; nevertheless, some practically important aspects remain to be investigated in depth. The studies of the mutual relations between these paths reported in the literature have been performed in ...
MORITOKI, Hitoshi, OKUYAMA, Eiki
openaire +2 more sources
A novel experimental set-up for in-situ microstructural characterization during continuous strain path change [PDF]
, 2020 Strain path change is a typical phenomenon during continuous stamping operations of sheet metal for a variety of applications including automotive body parts. During stamping, a punch continuously deforms a metal sheet to produce a desired geometry while
Hazra, S. +4 more
core +2 more sources
An experimental study about the effects of the partially drained strain paths on the monotonic behavior of loose silty sands using triaxial tests [PDF]
International Journal of Mining and Geo-EngineeringThe mechanical behavior of silty sands is one of the crucial topics in the field of soil mechanics. However, many studies have been conducted to determine the main features of the silty sand mixtures; there are some non-clarified mechanisms yet.
Jafar Mohammadi +2 more
doaj +1 more source
Strong strain path dependence of strain localizations and fracture in magnesium AZ31 sheet
Journal of Magnesium and Alloys, 2020 This study compares the deformation and fracture behavior of a basal-textured Mg AZ31 alloy sheet under uniaxial tension and biaxial stretching by using an in-plane biaxial test setup capable of observing and measuring the deformation at both meso ...
Kıvanç Alkan +3 more
doaj +1 more source
Soils and Foundations, 2003 ABSTRACT A new devise is developed for conducting a strain-path controlled test with a conventional triaxial test apparatus. By controlling lateral stress during axial strain controlled test, this devise can keep the principal strain increment ratio, Re , defined as a ratio between axial and lateral strain increments, constant. Toyoura sand specimens
K. Tokimatsu +3 more
openaire +2 more sources