Failure behaviour of strain and acceleration signals using various fatigue life models in time and frequency domains

Santharaguru, N.; Abdullah, Shahrum; Chin, C. H.; Singh, Salvinder Singh Karam

doi:10.1016/j.engfailanal.2022.106454

Cited by 11 publications

(2 citation statements)

References 29 publications

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“…In other relevant studies, equivalent accelerated tests were designed using different strategies, with this being done by looking at the details of the vibration excitation load spectrum. [13][14][15][16][17][18] Owing to the fact that the vibration fatigue of an aircraft structural component is mainly controlled by the first-order natural frequency response, in the present paper, first, the acceleration excitation spectrum is designed, and then, the analytical model of accelerated test is proposed. Subsequently, the design of vibration fatigue accelerated life tests, and the vibration fatigue tests of two kinds of aluminum alloy specimens with elliptical holes are completed.…”

Section: Introductionmentioning

confidence: 99%

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Acceleration factor and experimental validation of aluminum alloy under narrow‐band random excitation

Sun

Susmel

2022

Fatigue Fract Eng Mat Struct

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In order to reduce the vibration fatigue test time of aeronautical engineering components made of aluminum alloy, a random vibration fatigue acceleration model under narrow-band excitation is proposed in this paper. A threeparameter S-N curve is adopted to consider the effect of small stress response, while a scale factor α is introduced to consider the effect of stress distribution. The random vibration fatigue tests of 2024-T3 and 7075-T6 aluminum alloy specimens with elliptical holes are performed, where the vibration fatigue lives of load spectra with the same bandwidth and different excitation acceleration levels are obtained. The test results show that the proposed model is in sound agreement with the test results.

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Section: Introductionmentioning

confidence: 99%

“…Wu et al 11 and Hu et al 12 studied the vibration acceleration fatigue of cantilever beam and train gearbox housing, respectively. In other relevant studies, equivalent accelerated tests were designed using different strategies, with this being done by looking at the details of the vibration excitation load spectrum 13–18 …”

Section: Introductionmentioning

confidence: 99%