Results 31 to 40 of about 36,976 (243)

Estimation of Low-Cycle Fatigue Curves of High-Strength and Welded Steel 10CrNi3MoV [PDF]

, 2019
In this work is tested applicability of the extended uniform material law for high-strength steel on 10CrNi3MoV steel and its weld. Predicted low-cycle fatigue curves differ significantly from the measurements. Despite the reported scientific effort to
Kráčalík, Michal
core   +1 more source

Multiaxial classification in psychiatry

Comprehensive Psychiatry, 1983
Abstract It looks like carrying coals to Newcastle to speak as a European on multiaxial classification of mental disorders here in the United States because you have just adopted DSM-III, the only official psychiatric classification that has advanced in the direction of multiaxial classification.
openaire   +2 more sources

Notched multiaxial fatigue of Al7050-T7451: on the need for an equivalent process zone size [PDF]

Fracture and Structural Integrity, 2017
The aim of this work is to investigate stress gradient effects on the fatigue life estimation of notched Al 7050-T7451 specimens under combined torsion and push-pull loading conditions.
M.V.C Sá, J.L.A Ferreira, C.R.M da Silva, J.A. Araújo   +3 more
doaj   +2 more sources

Multiaxial fatigue behaviour of A356‐T6 [PDF]

Fatigue & Fracture of Engineering Materials & Structures, 2012
ABSTRACTAluminum alloy A356‐T6 was subjected to fully reversed cyclic loading under tension, torsion and combined loading. Results indicate that endurance limits are governed by maximum principal stress. Fractography demonstrates long shear mode III propagation with multiple initiation sites under torsion.
Roy, M; id_orcid 0000-0002-6558-4903, Nadot, Y, Maijer, D M, Benoit, G   +3 more
openaire   +3 more sources

Quasi-continuous higher-order sliding-mode controllers for spacecraft-attitude-tracking manoeuvres [PDF]

, 2010
This paper studies higher order sliding-modecontrol laws to deal with some spacecraft-attitude-tracking problems. Quasi-continuous second- and third-order sliding controllers and differentiators are applied to quaternion-based spacecraftattitude ...
Pukdeboon, C., Thein, M.W., Zinober, A.S.I.   +2 more
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Two Fatigue Life Prediction Models Based on the Critical Plane Theory and Artificial Neural Networks

Metals
Since a multiaxial loading environment may lead to the fatigue failure of structures, establishing a reliable fatigue model to predict the multiaxial fatigue lives of structures has always been a concern of engineers. This study proposes a new multiaxial
Yantian Wang, Yuanying Qiu, Jing Li, Jin Bai   +3 more
doaj   +1 more source

New research findings on non-proportional low cycle fatigue [PDF]

MATEC Web of Conferences, 2019
One of the challenges regarding multiaxial fatigue damage predictions is non-proportional loading. Relevant studies have shown that these multiaxial loadings cause significant additional hardening and reduction in durability due to non-proportionality ...
Cernescu Anghel, Pullin Rhys
doaj   +1 more source

Multiaxial Kitagawa analysis of A356-T6

, 2011
Experimental Kitagawa analysis has been performed on A356-T6 containing natural and artificial defects. Results are obtained with a load ratio of R = -1 for three different loadings: tension, torsion and combined tension-torsion. The critical defect size
Atzori, Atzori, Atzori, Billaudeau, Brochu, Buffière, C. Nadot-Martin, Chan, Couper, D.M. Maijer, Dabayeh, De-Feng, Eshelby, Fan, Gadouini, Gall, Gao, Kumar, Lazzarin, Ludwig, M.J. Roy, McDowell, Mura, Murakami, Nadot, P.-G. Bardin, Papadopoulos, Susmel, Susmel, Taylor, Vu, Y. Nadot, Zhu   +32 more
core   +1 more source