Research Status and Prospects on the Strength Variation Coefficient of Large Diameter Thin-Walled Structures
This article focuses on the analysis of thin-walled structures with respect to buckling failure,providing an overview of simulation and estimation techniques for strength variation coefficients.It reviews the parameters influencing structural strength uncertainty,their measurement,and statistical characterization methods.To address the significant impact of primary geometric defects on the buckling strength of thin-walled structures,it investigates high-precision finite element simulation methods that consider primary geometric imperfections.In order to efficiently calculate the load-bearing capacity of thin-walled structures,it also studies the construction of commonly used surrogate models and their applicability.Recognizing the limitations of the current solutions for simulating and estimating strength variation in thin-walled structures,it proposes relevant technical approaches to address these challenges.