Results 201 to 210 of about 630,138 (258)

Fatigue strength of carbon fibre composites up to the gigacycle regime (gigacycle-composites)

International Journal of Fatigue, 2006
Abstract Knowledge of the fatigue strength is necessary for design purposes also at very high numbers of load cycles. While static properties and fatigue strength curves in the low, medium and high cycle fatigue regime 1 are well investigated, only few data beyond 5×106 cycles (gigacycle fatigue regime) are available.
S MICHEL, R KIESELBACH, H MARTENS
openaire   +1 more source

Very high cycle and gigacycle fatigue of fiber-reinforced composites: A review on experimental approaches and fatigue damage mechanisms

, 2020
A comprehensive review is conducted on the very high cycle (VHC) and gigacycle (GC) fatigue of fiber-reinforced composite materials. The main objective was to conduct a benchmarking survey of high-frequency fatigue test methods that have been introduced ...
P. Shabani, F. Taheri-behrooz, S. S. Samareh-Mousavi, M. Shokrieh   +3 more
semanticscholar   +1 more source

Mechanical testing of optical fibers in the gigacycle fatigue regime

Applied photonics
The active application of composite smart materials, which include, in addition to the main material carrying the strength load, optical fibers with optic sensors for condition monitoring, makes the task of determining the strength of the fiber optic ...
M. Bannikov, A. Vshivkov, E. Gachegova, I.A. Trefilov, A. Kondrashov, Nikolay S. Sozonov   +5 more
semanticscholar   +1 more source

Gigacycle fatigue of bearing steels

Materials Science and Technology, 2012
For a practical point of view, the bearing steels are loaded up to the very high cycle fatigue regime, in service, far away from the Wöhler regime. In the present paper, several approaches are discussed in order to open some ways of investigation, in the range of 109 cycles: accelerated fatigue testing, thermal dissipation, fish-eye formation ...
openaire   +2 more sources

A new model for predicting the gigacycle fatigue strength of high-strength steels

Materials Science & Engineering: A, 2019
Three models for predicting the gigacycle fatigue strength of high-strength steels were investigated in this study: the Tanaka-Akiniwa model, the Murakami equation and a newly-formulated model.
Y. Furuya
semanticscholar   +1 more source

Gigacycle Fatigue Properties of Bearing Steels

Journal of ASTM International, 2010
Abstract The concept of a fatigue limit at 106 cycles that was introduced by Wohler in 1850 seems nowadays to be the wrong magnitude when considering the fatigue life of modern industrial applications such as automotive engines that run typically billions of cycles.
openaire   +1 more source

Analytical Design of Gigacycle Fatigue Specimens for Size Effect Evaluation

Key Engineering Materials, 2013
Research activities on gigacycle fatigue properties of materials have recently focused on the influence of specimen size used for ultrasonic fatigue tests. In order to increase the volume of material subjected to the maximum stress (risk volume) a new specimen shape with a Gaussian profile is proposed.
TRIDELLO, ANDREA, PAOLINO, Davide Salvatore, CHIANDUSSI, Giorgio, ROSSETTO, Massimo   +3 more
openaire   +1 more source

Development of a Gigacycle Bending Fatigue Test Method

55th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2014
A vibration-based bending gigacycle testing methodology is introduced as a means to efficiently assess high cycle fatigue (HCF) performance of vibrating turbine engine components. The gigacycle bending test is a modification to a conventional vibration-based approach which was developed to generate bending load conditions similar to those that would ...
Garrett Kurtz, Onome E. Scott-Emuakpor, Tommy George, Joseph Beck   +3 more
openaire   +1 more source

Gigacycle fatigue properties of 1800 MPa class spring steels

Fatigue & Fracture of Engineering Materials & Structures, 2004
ABSTRACTFatigue tests up to 108 cycles were carried out for two spring steels (Heats A and D1) and one valve spring steel (Heat F) with tensile strength, σB, of 1720, 1725 and 1764 MPa, respectively. The size and composition of inclusions in Heats Dl and F were controlled.
T. ABE, Y. FURUYA, S. MATSUOKA
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Fatigue Crack Initiation Mechanism of Aluminium Alloy Welded Joint in Gigacycle Fatigue

Applied Mechanics and Materials, 2013
Ultrasonic fatigue test was performed on 5052 aluminium alloy welded joint to investigate the very high cycle fatigue properties and the fatigue crack initiation mechanisms with the help of microhardness tester and scanning electron microscope (SEM). The results showed that the hardness of fusion zone was higher that base metal and heat affected zone ...
Chao He, Shi Ming Cui, Yan Zeng Wu, Ze Fu Luo, Qing Yuan Wang   +4 more
openaire   +1 more source