The Imperfection Sensitivity of Sheet Space Structure Based on the Contact Interactive

Abstract:

The initial geometric imperfections and the contact problem between sheets and skeletons are two key issues of the stability analysis of sheet space structures. In this paper ,the distribution law of the critical load is found out, the appropriate sample number and the critical load value formula are chosen for stochastic imperfection method, while the value of probability reliability is ensured. The results of contact model and fully coordinated model are compared to indicate that the effect of contact must be considered in the imperfection sensitive analysis of the structure after stochastic imperfection sensitivity analysis of sheet space structures. The paper also raises the quantitative indicators to characterize the imperfection sensitivity of sheet space structure, and it is the necessary preparation to quantify the sensitivity of structures.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 1260-1266
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.1260
• Online since: October 2012
• Authors: Tian Jiao Jin, Xiao Ming Guo, Wei Sun
• Keywords: Contact, Sensitivity Imperfection, Sheet Space Structures, Stochastic Imperfection Method

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