Results 21 to 30 of about 72,684 (256)
A review of the research on the VHCF test technology for aero-engine typical materials
Hangkong gongcheng jinzhan, 2023 As the most critical and core part of the aircraft, the aero-engine has been serving in extreme environ-ment such as high temperature and high load for a long time. Fatigue failure is one of the main causes of engine structure failure.
WANG Zhaohan +5 more
doaj +1 more source
Notch Effect on the Fatigue Behavior of a TC21 Titanium Alloy in Very High Cycle Regime
Applied Sciences, 2018 The very high cycle fatigue (VHCF) property of TC21 titanium alloy blunt-notched specimens were investigated by using an ultrasonic fatigue test machine with a frequency of 20 kHz.
Baohua Nie +5 more
doaj +1 more source
Materials & Design, 2020 Working service of structural materials at elevated temperatures generally leads to a significant decrease in their fatigue performance, thereby threatening the safety and reliability of engineering structures.
Xue Li +8 more
doaj +1 more source
Mechanical Properties and Very High Cycle Fatigue Behavior of Peak-Aged AA7021 Alloy
Metals, 2018 The effect of heat treatment condition on non-Cu AA7021 alloy was investigated with respect to mechanical properties and very high cycle fatigue behavior.
Byung-Hoon Lee +4 more
doaj +1 more source
Damage development under very-high-cycle fatigue regime
PNRPU Mechanics Bulletin, 2020 A method of testing metallic materials using piezoelectric elements under very-high-cycle fatigue (VHCF) regime is described in the paper. The scheme and structure of a high-frequency fatigue machine are discussed. For the experiments, the first mode of resonant longitudinal vibrations is calculated, corresponding to the natural frequency of the ...
I. S Nikitin +2 more
openaire +2 more sources
Very High Cycle Fatigue and Fatigue Crack Growth of Steels: A Review
Applied SciencesThis review presents a comprehensive examination of the total fatigue life behaviour of high-strength steels (HSS) with particular emphasis on fatigue crack initiation in the very high cycle fatigue (VHCF) regime and crack propagation based on fracture ...
Monisha Manjunatha +4 more
doaj +1 more source
Cumulative Damage in Very High/Low Cycle Combined Fatigue for TC21 Titanium Alloy
Crystals, 2022 The effect of low cycle fatigue (LCF) predamage with no precracks on very high cycle fatigue (VHCF) properties, and crack initiation characteristics for TC21 titanium alloy, was investigated.
Baohua Nie +7 more
doaj +1 more source
Crack path for run-out specimens in fatigue tests: is it belonging to high- or very-high-cycle fatigue regime? [PDF]
Fracture and Structural Integrity, 2015 Fatigue tests run-out specimens up to 106 – 5x107 load cycles are used to determine the stress level named “fatigue limit”. Nevertheless, it is not clear what kind of fatigue cracking takes or will take place in these specimens. To discuss this problem,
A. Shanyavskiy
doaj +3 more sources
Assessment of Fatigue Life and Failure Criteria in Ultrasonic Testing Through Thermal Analyses
Applied SciencesAn experimental study was conducted to analyze temperature evolution during very high cycle fatigue tests. The temperature–number of cycles (T–N) curve is typically divided into three phases: Phase I—a rapid temperature increases at the start of the test,
Maria Clara Carvalho Teixeira +4 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Parents of children treated for acute lymphoblastic leukemia (ALL) often experience significant caregiver burden and disruption to their well‐being. While parent quality of life (QoL) during treatment is well characterized, little is known about outcomes during early survivorship.
Sara Dal Pra +3 more
wiley +1 more source