Results 41 to 50 of about 17,460 (261)

DynamicConstitutiveRelationConsidering Thermo Viscoplasticityfor TitaniumAlloyandExperimentalVerification

open access: yes工程科学与技术, 2014
:Due to the peculiarity of mechanical behavior for titanium alloy under impact loading,its thermo viscoplasticity under high strain rate and the quantitative relation of temperature stress reduction and thermo viscoplasticity dissipation cannot be ...
曾祥国   +4 more
doaj  

Differential Item Functioning on the Patient Health Questionnaire 8 by Disease Subtype, Language, Sex, and Age Among People With Systemic Sclerosis: A Scleroderma Patient‐Centered Intervention Network Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective Somatic items used in depression assessments can potentially overlap with symptoms related to physical illness, including systemic sclerosis (SSc). No studies have looked at whether somatic depression items may be influenced by diffuse versus limited SSc disease subtypes, which are associated with varying degrees of symptom presentation.
Sophie Hu   +110 more
wiley   +1 more source

Correction of Flow Curves and Constitutive Modelling of a Ti-6Al-4V Alloy

open access: yesMetals, 2018
Isothermal uniaxial compressions of a Ti-6Al-4V alloy were carried out in the temperature range of 800–1050 °C and strain rate range of 0.001–1 s−1. The effects of friction between the specimen and anvils as well as the increase in temperature caused by ...
Ming Hu   +5 more
doaj   +1 more source

Transient Numerical Models of Metal Cutting using the Johnson-Cook's Rupture Criterion [PDF]

open access: yesInternational Journal of Forming Processes, 2002
This paper presents two-dimensional and three-dimensional transient numerical models of metal cutting. The simulations concern the study of the unsteady process of chip formation. These finite element models take into account dynamic effects, thermo-mechanical coupling with a rupture criterion and contact with friction.
Bacaria, Jean-Louis   +3 more
openaire   +3 more sources

Trajectories of Physical Function in Canadian Children With Juvenile Idiopathic Arthritis

open access: yesArthritis Care &Research, EarlyView.
Objective We describe trajectories of physical function in children newly diagnosed with juvenile idiopathic arthritis (JIA) and identify trajectories with persisting functional impairments and associated baseline characteristics. Methods We included patients enrolled in the Canadian Alliance of Pediatric Rheumatology Investigators (CAPRI) Registry ...
Clare Cunningham   +81 more
wiley   +1 more source

Modelling of the dynamic behaviour of hard-to-machine alloys

open access: yesEPJ Web of Conferences, 2012
Machining of titanium alloys and nickel based superalloys can be difficult due to their excellent mechanical properties combining high strength, ductility, and excellent overall high temperature performance.
Bäker M.   +4 more
doaj   +1 more source

Cumulative Social Disadvantage and Disease Activity in Juvenile Idiopathic Arthritis: A Childhood Arthritis and Rheumatology Research Alliance Registry Study

open access: yesArthritis Care &Research, EarlyView.
Objective Social determinants of health (SDOH) contribute to juvenile idiopathic arthritis (JIA) disparities, but most studies have assessed SDOH independently rather than cumulatively across individual, family, and neighborhood levels. Using a socioecological framework, we investigated the relationship among cumulative social disadvantage ...
William Daniel Soulsby   +448 more
wiley   +1 more source

A Comparative Study on Arrhenius and Johnson–Cook Constitutive Models for High-Temperature Deformation of Ti2AlNb-Based Alloys

open access: yesMetals, 2019
In order to thoroughly understand the quantitative relationships between the flow stress and deformation conditions for Ti2AlNb-based alloys at elevated temperatures, the Arrhenius and Johnson⁻Cook constitutive models are analyzed and identified on
Zhubin He, Zhibiao Wang, Peng Lin
doaj   +1 more source

A Comparative Study of Three Constitutive Models concerning Thermo-Mechanical Behavior of Q345 Steel during Hot Deformation

open access: yesCrystals, 2022
The Gleeble-3800 thermal simulator was used to perform hot compression experiments on Q345 steel at a temperature of 1123~1373 K, a strain rate of 0.01~10 s−1, and 60% deformation.
Guanghui Zhao   +5 more
doaj   +1 more source

Immunosuppressive Drug Use in Limited Systemic Sclerosis: An International Survey

open access: yesArthritis Care &Research, EarlyView.
Objective Current guidelines recommend immunosuppressive treatment for diffuse cutaneous systemic sclerosis but are less clear on their use in limited cutaneous systemic sclerosis (lcSSc) in the absence of internal organ complications. We conducted an international survey to understand current immunosuppressive drug prescribing patterns in lcSSc ...
Sabrina Hoa   +3 more
wiley   +1 more source

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