Numerical analysis of stiffened shear webs in the postbuckling rangeThe postbuckling behavior of shear webs divided into rectangular panels by stiffeners (uprights) was studied numerically, using the STAGS program in which two-dimensional finite differences are used to solve buckling and nonlinear problems. Universal nondimensional parameters, suggested by linear buckling data, are found to hold for the postbuckling range. Results indicate that the postbuckling stiffness of shear webs with isotropic panels is roughly two thirds of the prebuckling stiffness. The postbuckling behavior of shear webs with isotropic and orthotropic material properties is compared. Some practical aspects of solving nonlinear problems of this type by the numerical method employed are examined.
Document ID
19740031136
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Stein, M.
Starnes, J. H., Jr. (NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1973
Subject Category
Structural Mechanics
Meeting Information
Meeting: Symposium on the Numerical solution of nonlinear structural problems