Frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites
Само за регистроване кориснике
2017
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The panel-type structures used in aerospace engineering can be subjected to severe high-frequency acoustic loadings in service. This paper evaluates the frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites (CMCs) under acoustic loadings. Firstly, the high-frequency random responses from the broadband random excitation will result in more stress cycles in a definite period of time. The probability density distributions of stress amplitudes will be different in different frequency band-widths, though the peak stress estimations are identical. Secondly, the fatigue properties of CMCs can be highly frequency-dependent. The fatigue evaluation method for the random vibration case is adopted to evaluate the fatigue damage of a representative stiffened panel structure. The frequency effect through S-N curves on random fatigue damage is numerically verified. Finally, a parameter is demonstrated to characterize the mean vibration frequency of a random pro...cess, and hence this parameter can further be considered as a reasonable loading frequency in the fatigue tests of CMCs to obtain more reliable S-N curves. Therefore, the influence of vibration frequency can be incorporated in the random fatigue model from the two perspectives.
Кључне речи:
S-N curve / Random fatigue / Loading frequency / Frequency effect / Ceramic matrix composites (CMCs)Извор:
Acta Mechanica Solida Sinica, 2017, 30, 2, 165-173Издавач:
- Springer, New York
Финансирање / пројекти:
- National Natural Science Foundation of China [11572086, 11402052]
- New Century Excellent Talent in University [NCET-11-0086]
- Natural Science Foundation of Jiangsu province [BK20140616]
- Fundamental Research Funds for the Central Universities
- Scientific Research Innovation Program of Jiangsu Province College Postgraduates [KYLX_0093, KYLX15_0092
- China Scholarship Council [201506090047]
- Интегритет опреме под притиском при истовременом деловању замарајућег оптерећења и температуре (RS-MESTD-Technological Development (TD or TR)-35011)
- Динамика хибридних система сложених структура. Механика материјала (RS-MESTD-Basic Research (BR or ON)-174001)
DOI: 10.1016/j.camss.2017.03.010
ISSN: 0894-9166
WoS: 000405607500006
Scopus: 2-s2.0-85017440432
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Zhou, Yadong AU - Hang, Xiaochen AU - Wu, Shaoqing AU - Fei, Qingguo AU - Trišović, Nataša PY - 2017 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2546 AB - The panel-type structures used in aerospace engineering can be subjected to severe high-frequency acoustic loadings in service. This paper evaluates the frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites (CMCs) under acoustic loadings. Firstly, the high-frequency random responses from the broadband random excitation will result in more stress cycles in a definite period of time. The probability density distributions of stress amplitudes will be different in different frequency band-widths, though the peak stress estimations are identical. Secondly, the fatigue properties of CMCs can be highly frequency-dependent. The fatigue evaluation method for the random vibration case is adopted to evaluate the fatigue damage of a representative stiffened panel structure. The frequency effect through S-N curves on random fatigue damage is numerically verified. Finally, a parameter is demonstrated to characterize the mean vibration frequency of a random process, and hence this parameter can further be considered as a reasonable loading frequency in the fatigue tests of CMCs to obtain more reliable S-N curves. Therefore, the influence of vibration frequency can be incorporated in the random fatigue model from the two perspectives. PB - Springer, New York T2 - Acta Mechanica Solida Sinica T1 - Frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites EP - 173 IS - 2 SP - 165 VL - 30 DO - 10.1016/j.camss.2017.03.010 ER -
@article{ author = "Zhou, Yadong and Hang, Xiaochen and Wu, Shaoqing and Fei, Qingguo and Trišović, Nataša", year = "2017", abstract = "The panel-type structures used in aerospace engineering can be subjected to severe high-frequency acoustic loadings in service. This paper evaluates the frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites (CMCs) under acoustic loadings. Firstly, the high-frequency random responses from the broadband random excitation will result in more stress cycles in a definite period of time. The probability density distributions of stress amplitudes will be different in different frequency band-widths, though the peak stress estimations are identical. Secondly, the fatigue properties of CMCs can be highly frequency-dependent. The fatigue evaluation method for the random vibration case is adopted to evaluate the fatigue damage of a representative stiffened panel structure. The frequency effect through S-N curves on random fatigue damage is numerically verified. Finally, a parameter is demonstrated to characterize the mean vibration frequency of a random process, and hence this parameter can further be considered as a reasonable loading frequency in the fatigue tests of CMCs to obtain more reliable S-N curves. Therefore, the influence of vibration frequency can be incorporated in the random fatigue model from the two perspectives.", publisher = "Springer, New York", journal = "Acta Mechanica Solida Sinica", title = "Frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites", pages = "173-165", number = "2", volume = "30", doi = "10.1016/j.camss.2017.03.010" }
Zhou, Y., Hang, X., Wu, S., Fei, Q.,& Trišović, N.. (2017). Frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites. in Acta Mechanica Solida Sinica Springer, New York., 30(2), 165-173. https://doi.org/10.1016/j.camss.2017.03.010
Zhou Y, Hang X, Wu S, Fei Q, Trišović N. Frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites. in Acta Mechanica Solida Sinica. 2017;30(2):165-173. doi:10.1016/j.camss.2017.03.010 .
Zhou, Yadong, Hang, Xiaochen, Wu, Shaoqing, Fei, Qingguo, Trišović, Nataša, "Frequency-dependent random fatigue of panel-type structures made of ceramic matrix composites" in Acta Mechanica Solida Sinica, 30, no. 2 (2017):165-173, https://doi.org/10.1016/j.camss.2017.03.010 . .