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Investigation of Proportional and Non-proportional Loadings Using Mohr’s Circle [PDF]

open access: yes2012 ASEE Annual Conference & Exposition Proceedings, 2020
Investigation of Proportional and Non-proportional Loadings Using Mohr’s Circle ABSTRACTFor time-varying loads, proportional loading refers to the cases where the principal stressesmaintain constant directions and constant ratios of their values; otherwise it is non-proportional,Non-proportional loadings are especially important in the design and ...
openaire   +2 more sources

Influence of multiaxial cyclic plastic loading on grain boundary misorientation profile in austenitic stainless steel [PDF]

open access: yesMATEC Web of Conferences, 2019
304LN stainless was subjected to multiaxial loading employing different waveforms and load paths. The grain boundary misorientation profile so obtained post deformation was compared across loading conditions.
Dey Rima   +2 more
doaj   +1 more source

Sharp three-dimensional notches under combined nominal normal and shear fatigue loading [PDF]

open access: yesFracture and Structural Integrity, 2017
Many engineering structures are exposed to non-proportional fatigue loading. However, at the critical location of crack initiation, often only one of the load sequences dominates – the individual load cases result in different crack initiation sites ...
M. Vormwald, E. Shams
doaj   +2 more sources

Influence of Loading Rate on the Energy Evolution Characteristics of Rocks under Cyclic Loading and Unloading

open access: yesEnergies, 2020
To analyse the effect of loading rate on the energy evolution of rocks under cyclic loading and unloading, tests on saturated limestone were conducted at loading rates of 0.15, 0.2, and 0.3 mm/min, and the evolution characteristics of plastic, elastic ...
Jielin Li   +4 more
doaj   +1 more source

Determination of the Relationship between Proportional and Non-Proportional Fatigue Damage in Magnesium Alloy AZ31 BF

open access: yesCrystals, 2023
In this work, the magnesium alloy AZ31BF subjected to proportional and non-proportional loads has been studied. For this purpose, a series of experimental multiaxial fatigue tests were carried out according to the ASTM E466 protocol.
Vitor Anes   +3 more
doaj   +1 more source

Effect of inelastic multiaxial preloading on high cycle fatigue strength

open access: yesNihon Kikai Gakkai ronbunshu, 2020
This study investigates an effect of inelastic non-proportional preloading on failure life in a followed high cycle fatigue for two steels, SUS316 stainless and Mod.9Cr-1Mo steels.
Takahiro MORISHITA   +2 more
doaj   +1 more source

Effect of phase angle on the cyclic behavior of AISI 410 alloy [PDF]

open access: yesMATEC Web of Conferences, 2019
Multiaxial strain-controlled fatigue tests were conducted on AISI 410 according to ASTM 2207-E08 [1] under proportional (phase angle, θ = 90°) and non-proportional (phase angle, θ = 90º) loadings.
Adinoyi Muhammed J.   +2 more
doaj   +1 more source

Welded joints under multiaxial non-proportional loading [PDF]

open access: yesTheoretical and Applied Fracture Mechanics, 2018
El presente documento examina el comportamiento a la fatiga de una junta tubular en T soldada en filete en el denominado componente estructural H de un pulverizador agrícola. Dado que las mediciones experimentales, realizadas en algunas ubicaciones de control del equipo, han resaltado un campo de tensión/deformación de naturaleza aleatoria, aquí se ...
Andrea Carpinteri   +9 more
openaire   +2 more sources

Thermal Load Model of a Proportional Solenoid Valve Based on Random Load Conditions

open access: yesSensors, 2023
Drastic changes in the random load of an electromechanical system bring about a reliability problem for the proportional solenoid valve based on a thermal effect. In order to accurately and effectively express the thermal load of a proportional solenoid valve under random load conditions and to meet the requirements of online acquisition, adaptive ...
Chenyu Liu   +3 more
openaire   +3 more sources

The role of load‐carrying in the evolution of modern body proportions [PDF]

open access: yesJournal of Anatomy, 2004
AbstractThe first unquestionably bipedal early human ancestors, the species Australopithecus afarensis, were markedly different to ourselves in body proportions, having a long trunk and short legs. Some have argued that ′chimpanzee‐like′ features such as these suggest a ‘bent‐hip, bent‐knee’ (BHBK) posture would have been adopted during gait.
Wang, W.-J., Crompton, R. H.
openaire   +3 more sources

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