Fatigue Analysis of Greenhouse Structure under Wind Load and Self-Weight
AbstractThe design strength of a greenhouse structure is generally determined by analyzing strength after applying wind load using the wind pressure coefficient according to a design guide. Until now, the stability analysis for wind load has been performed through static structural analysis. However, a greenhouse is subjected to dynamic wind loads of various amplitudes, and it is reasonable to judge stability through fatigue analysis. For fatigue analysis, a stress-normalized model was constructed based on the square of wind speed, and the value obtained by squaring wind speed was used as dynamic load time data. Life cycle was calculated under stress generated by self-weight by compensating fatigue estimation stress. Furthermore, the effect of self-weight was examined and errors of up to 21% were obtained depending on the configuration of the stress-normalized model. When self-weight and wind speed were applied simultaneously, the effect of self-weight reduced when the stress-normalized model was used at high wind speed. Therefore, it is appropriate that the fatigue analysis is based on the fatigue stress model normalized by the square of wind speed, fatigue estimation stress is corrected to the static stress due to self-weight, and the square of wind speed is used as the dynamic load. View Full-Text
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Hur, D.-J.; Kwon, S. Fatigue Analysis of Greenhouse Structure under Wind Load and Self-Weight. Appl. Sci. 2017, 7, 1274.
Hur D-J, Kwon S. Fatigue Analysis of Greenhouse Structure under Wind Load and Self-Weight. Applied Sciences. 2017; 7(12):1274.Chicago/Turabian Style
Hur, Deog-Jae; Kwon, Sangyoup. 2017. "Fatigue Analysis of Greenhouse Structure under Wind Load and Self-Weight." Appl. Sci. 7, no. 12: 1274.