Results 81 to 90 of about 14,830,293 (403)

Fatigue testing a plurality of test specimens and method [PDF]

open access: yes, 1987
Described is a fatigue testing apparatus for simultaneously subjecting a plurality of material test specimens to cyclical tension loading to determine the fatigue strength of the material.
Hodo, James D.   +3 more
core   +1 more source

Specimen gripping effects in composites fatigue testing - Concerns from initial investigation

open access: yes, 2015
This paper presents the findings of an initial investigation into effects of end tabs and gripping force on speci- mens for fatigue testing of structural composites.
P. Bailey, A. D. Lafferty
semanticscholar   +1 more source

Network Localization of Fatigue in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Fatigue is among the most common symptoms and one of the main factors determining the quality of life in multiple sclerosis (MS). However, the neurobiological mechanisms underlying fatigue are not fully understood. Here we studied lesion locations and their connections in individuals with MS, aiming to identify brain networks ...
Olli Likitalo   +12 more
wiley   +1 more source

Thermal Behavior of a Magnetically Levitated Spindle for Fatigue Testing of Fiber Reinforced Plastic

open access: yesActuators, 2019
This article discusses the critical thermal behavior of a magnetically levitated spindle for fatigue testing of cylinders made of fiber reinforced plastic. These cylinders represent the outer-rotor of a kinetic energy storage.
Daniel Franz   +3 more
doaj   +1 more source

Crystal rotation behavior with fatigue crack propagation in copper films [PDF]

open access: yes, 2009
Using a fatigue testing method by which fatigue cracks can be initiated and propagated in a film adhered to cover an elliptical through-hole in a base plate subjected to push-pull cyclic loads, annealed copper films with the thickness of 100μm and those ...
Ishida, Koki   +2 more
core   +1 more source

Frailty Exacerbates Disability in Progressive Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background To evaluate frailty in severe progressive multiple sclerosis (PMS) and to investigate the underlying mechanisms. Methods This prospective, cross‐sectional, multicenter study enrolled a late severe PMS group requiring skilled nursing (n = 53) and an age, sex, and disease duration‐matched control PMS group (n = 53).
Taylor R. Wicks   +10 more
wiley   +1 more source

Fatigue Testing and Evaluation of Fatigue Strength under Multiaxial Stress State; Why do we need fatigue testing?

open access: yesMATEC Web of Conferences, 2018
Types of multiaxial fatigue tests and their experimental results are presented in this paper. There are typical three types in multiaxial fatigue tests: the combining push-pull and reversed torsion loading test using hollow cylinder specimen, the biaxial
Itoh Takamoto   +2 more
doaj   +1 more source

Fatigue testing device Patent [PDF]

open access: yes, 1967
Fatigue testing device applying random discrete load levels to test specimen and applicable to aircraft ...
Bryant, E. L., Naumann, E. C.
core   +1 more source

Barriers to Investment Abroad as Tools of Payments Policy [PDF]

open access: yes, 1969
The thesis examines the fatigue life of weld ends, where very little usable research previously has been conducted, and often the weld ends are the critical parts of the weld.
Furth, J. Herbert
core   +3 more sources

Experimental Design and Validation of an Accelerated Random Vibration Fatigue Testing Methodology

open access: yes, 2015
Novel accelerated random vibration fatigue test methodology and strategy are proposed, which can generate a design of the experimental test plan significantly reducing the test time and the sample size.
Yu Jiang, G. Yun, Li Zhao, J. Tao
semanticscholar   +1 more source

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