Results 31 to 40 of about 11,030,662 (278)

Influence of Material Ductility on Fatigue Life under Multiaxial Proportional and Non-Proportional Normal and Shear Stresses [PDF]

MATEC Web of Conferences, 2019
Current experiences show that a non-proportional loading of ductile materials such as wrought steels, wrought aluminium or magnesium alloys, not welded or welded, causes a significant fatigue life reduction under an out-of-phase shear strain or shear ...
Sonsino Cetin Morris
doaj   +1 more source

A survey on multiaxial fatigue damage parameters under non‐proportional loadings [PDF]

Fatigue & Fracture of Engineering Materials & Structures, 2017
AbstractIn this paper, several multiaxial fatigue damage parameters taking into account nonproportional additional hardening are reviewed. According to the way nonproportional additional hardening is considered in the model, the damage parameters are classified into 2 categories: (1) equivalent damage parameters and (2) direct damage parameters.
Luo, P., Yao, W., Susmel, L., Wang, Y., Ma, X.   +4 more
openaire   +2 more sources

Fatigue Equivalent Stress State Approach Validation in Non-conservative Criteria: a Comparative Study

Latin American Journal of Solids and Structures
This paper is concerned with the fatigue prediction models for estimating the multiaxial fatigue limit. An equivalent loading approach with zero out-of-phase angles intended for fatigue limit evaluation under multiaxial loading is used.
Kévin Martial Tsapi Tchoupou, Bertin Désiré Soh Fotsing   +1 more
doaj   +1 more source

Non‐proportional loading in sequentially linear analysis for 3D stress states [PDF]

International Journal for Numerical Methods in Engineering, 2019
SummarySequentially linear analysis (SLA), a non‐incremental‐iterative approach towards finite element simulation of quasi‐brittle materials, is based on sequentially identifying a critical integration point in the model, to reduce its strength and stiffness, and the associated critical load multiplier (λcrit), to scale the linear analysis results.
Manimaran Pari, Max A.N. Hendriks, Jan G. Rots   +2 more
openaire   +4 more sources

Low cycle fatigue life prediction of 63Sn-37Pb solder under proportional and non-proportional loading

, 2019
Multiaxial fatigue tests were conducted on 63Sn-37Pb solder specimens under proportional and non-proportional axial/torsional loading. The von Mises equivalent stress and strain are found to be fitted by the Ramberg-Osgood relationship.
Chen, X, Song, J, Kim, KS
core   +1 more source

Evidence‐Informed Multidisciplinary Consensus Guidance for the Psychosocial Care of Adolescents With High‐Risk Cancer: Recommendations From the Italian Association of Pediatric Hematology and Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom, Dorella Scarponi, Giulia Zucchetti, Teresa Perillo, Maria Montanaro, Elisa Marconi, Chiara Rutigliano, Paolo Colavero, Paola Quarello, Marina Bertolotti, Monica Cellini, Carlo Clerici, Maurizio Mascarin, Francesca Bomben, Andrea Ferrari, the expert workgroup   +15 more
wiley   +1 more source

Influence of notch sensitivity and crack initiation site on low cycle fatigue life of notched components under multiaxial non-proportional loading [PDF]

Fracture and Structural Integrity, 2019
A series of strain controlled multiaxial low cycle fatigue (LCF) tests under proportional and non-proportional loading conditions have been conducted on notched specimens. Cylindrical bars of Al 6061 aluminum alloy and AISI 316L stainless steel with four
Stefano Bressan, Fumio Ogawa, Takamoto Itoh, Filippo Berto   +3 more
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

Axial-torsional fatigue and cyclic deformation of 304L stainless steel at room temperature [PDF]

MATEC Web of Conferences, 2019
This work investigates the axial-torsional fatigue and cyclic deformation behaviour of 304L stainless steel at room temperature. Four fully reversed strain-controlled loading paths (axial, torsional, proportional axial-torsional, and 90º out-of-phase ...
Bemfica Cainã, Mamiya Edgar, Castro Fábio   +2 more
doaj   +1 more source

Fatigue Life Assessment of Metals under Multiaxial Asynchronous Loading by Means of the Refined Equivalent Deformation Criterion

Metals, 2023
As is well-known, non-proportional fatigue loading, such as asynchronous one, can have significant detrimental effects on the fatigue behavior of metallic materials by reducing the fatigue strength/fatigue limit and by leading to a fatigue damage ...
Daniela Scorza
doaj   +1 more source