Results 31 to 40 of about 2,651,640 (305)

Impact of different factors on contact stress of axle box bearing when considering axial load

open access: yes机车电传动, 2023
As the axle assembly relationship of variable gauge bogie is clearance fit, in which the axle box bearing bears greater axial load compared with the traditional bogie axle box bearing, it is necessary to consider the impact of axial load on bearing ...
LI Zhihua   +3 more
doaj  

A crack-like notch analogue for a safe-life fretting fatigue design methodology [PDF]

open access: yes, 2003
Various analogies have recently been proposed for comparing the stress fields induced in fretting fatigue contact situations, with those of a crack and a sharp or a rounded notch, resulting in a degree of uncertainty over which model is most appropriate ...
Ciavarella, M.
core   +1 more source

Impact of High Contact Stress on the Wear Behavior of U75VH Heat-Treated Rail Steels Applied for Turnouts

open access: yesMetals
Considering the greater contact stress of turnout rails during wear and the development of heavy-haul railways, twin-disc sliding–rolling wear tests were performed on U75VH heat-treated rail steels applied for turnouts under high contact stress ranging ...
Ruimin Wang   +5 more
doaj   +1 more source

Analysis of the Influence of Contact Stress on the Fatigue of AD180 High-Carbon Semi-Steel Roll

open access: yesMetals
In this study, to investigate the problem of contact fatigue and the damage mechanism of an AD180 high-carbon semi-steel roll, rolling contact fatigue tests were conducted using specimens cut from the periphery of a roll ring.
Yaxing Liu   +5 more
doaj   +1 more source

Shape Influence of Active Material Micro-Structure on Diffusion and Contact Stress in Lithium-Ion Batteries

open access: yesEnergies, 2020
Electrochemical-mechanical modelling is a key issue to estimate the damage of active material, as direct measurements cannot be performed due to the particles nanoscale.
Davide Clerici   +2 more
doaj   +1 more source

Macroscopic model with anisotropy based on micro-macro informations [PDF]

open access: yes, 2014
Physical experiments can characterize the elastic response of granular materials in terms of macroscopic state-variables, namely volume (packing) fraction and stress, while the microstructure is not accessible and thus neglected.
Kumar, Nishant   +2 more
core   +5 more sources

Defining Roles in Pediatric Palliative Care: Perspectives From Oncology and Palliative Care Teams

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Early integration of pediatric palliative care (PPC) is associated with improved symptom management, quality of life, and healthcare utilization for children with cancer. Despite this, variation persists in how PPC is understood, operationalized, and integrated within pediatric oncology programs. In particular, ambiguity surrounding
Leeat Granek   +13 more
wiley   +1 more source

Blinatumomab Utilization in Pediatric B‐Cell Acute Lymphoblastic Leukemia: Experience From the Mountain West

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Blinatumomab is a bispecific T‐cell engager approved for the treatment of pediatric B‐cell acute lymphoblastic leukemia (B‐ALL). Outpatient home infusion reduces hospitalization burden and optimizes resource utilization, but is logistically challenging.
Angela Parra del Riego   +10 more
wiley   +1 more source

Research on Forced Friction and Wear of Guide Joint of Downhole Closed-Loop Controlled Bend Sub

open access: yesShiyou jixie, 2021
To study the influence of the contact stress, friction and wear of the steel ball in the raceway during the working process of the guide joint, according to the Hertz contact theory, MATLAB software is used to calculate the contact stress between the ...
Zhang Guangwei   +3 more
doaj  

Micromechanical analysis of kinematic hardening in natural clay [PDF]

open access: yes, 2009
This paper presents a micromechanical analysis of the macroscopic behaviour of natural clay. A microstructural stress-strain model for clayey material has been developed which considers clay as a collection of clusters.
Academy of Finland (Grant 210744) (Funder)   +9 more
core   +1 more source

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