Results 21 to 30 of about 7,418,430 (299)

Ultrasonic fatigue testing of concrete

open access: yesUltrasonics, 2021
Cyclic compression fatigue properties of concrete are studied with the ultrasonic fatigue testing method with cycling frequency 19 kHz and are compared to servo-hydraulic tests performed at 60 Hz. Ultrasonic testing was found applicable for rapid generation of very high cycle fatigue (VHCF) data of concrete.
Fitzka, Michael   +6 more
openaire   +3 more sources

Modelling the role of non metallic inclusions on the anisotropic fatigue behaviour of forged steel [PDF]

open access: yes, 2011
Forged components are known to show high cyclic and monotonic mechanical properties. This is mainly due to a better compactness and a finer microstructure introduced by the forming process. However, this good mechanical behaviour is sometimes a source of
D. Bellett   +7 more
core   +1 more source

Graz Reading Comprehension Test

open access: yes, 2023
Der GraLeV ist ein Verfahren zur Messung des Leseverständnisses (auf Wort-, Satz- und Textebene) von Kindern der dritten und vierten Schulstufe. Er besteht aus 4 Subtests mit insgesamt 38 Itemsets. Der GraLeV weist eine interne Konsistenz von Cronbachs α
Riedl, S.   +4 more
core   +1 more source

The Experimental Verification of Direct-Write Silver Conductive Grid and ARIMA Time Series Analysis for Crack Propagation

open access: yesSensors, 2021
The paper presents experimental verification of customized resistive crack propagation sensors as an alternative method for other common structural health monitoring (SHM) techniques.
Artur Kurnyta   +5 more
doaj   +1 more source

A new test methodology based on structural resonance for mode I fatigue delamination growth in an unidirectional composite [PDF]

open access: yes, 2013
A specific device has been set up to test by vibration resonance the mode I fatigue delamination growth onset of composite laminates. This test system, based on the DCB test specimen, is a mass-spring-specimen dynamic system designed to resonate.
Rico, Germain   +4 more
core   +1 more source

Fatigue testing system with a helium recondenser and fatigue tests.

open access: yesTEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 1986
A liquid helium temperature fatigue testing system was developed at the National Research Institute for Metals, Tsukuba Laboratories. The system is equipped with a recondenser installed in the test machine cryostat. Helium mist is transferred to the recondenser from the refrigerator, and the evaporated helium gas in the cryostat is recondensed into ...
YURI, Tetsumi   +3 more
openaire   +2 more sources

A probabilistic model for the high cycle fatigue behaviour of cast aluminium alloys subject to complex loads [PDF]

open access: yes, 2013
Lien vers la version éditeur: http://www.sciencedirect.com/science/article/pii/S0142112312002472This article is dedicated to the high cycle fatigue behaviour of cast hypo-eutectic Al–Si alloys and in particular the AlSi7Cu05Mg03 alloy.
PESSARD, Etienne   +3 more
core   +1 more source

Evaluation of residual stress relaxation and its effect on fatigue strength of AISI 316L stainless steel ground surfaces: Experimental and numerical approaches [PDF]

open access: yes, 2013
This paper is aimed at evaluating the residual stress relaxation and its effect on the fatigue strength of AISI 316L steel ground surfaces in comparison to electro-polished surfaces.
SIDHOM, Habib   +2 more
core   +1 more source

Characteristics of Moduli Decay for the Asphalt Mixture under Different Loading Conditions

open access: yesApplied Sciences, 2018
In order to explore the moduli decay patterns of asphalt mixtures under different loading conditions, the nonlinear fatigue damage model was implemented in order to simulate the moduli decay patterns.
Songtao Lv   +5 more
doaj   +1 more source

Effect of Corrosion on the High Cycle Fatigue Strength of Martensitic Stainless Steel X12CrNiMoV12-3 [PDF]

open access: yes, 2012
This paper addresses the effects of corrosion on the high cycle fatigue (HCF) strength of a high mechanical strength martensitic stainless steel (X12CrNiMoV12-3) that is used in aeronautic applications. HCF tests (between 105 and 107 cycles) were carried
PALIN-LUC, Thierry   +4 more
core   +1 more source

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