THE EFFECTS OF INELASTIC ACTION ON THE RESISTANCE TO VARIOUS TYPES OF LOADS OF DUCTILE MEMBERS MADE FROM VARIOUS CLASSES OF METALS PART VI. A DIGITAL COMPUTER ANALYSIS OF BENDING MOMENT-AXIAL LOAD INTERACTION CURVES

摘要

This paper presents the results of a study undertaken to determine the feasibility of using the digital computer to make the time-consuming calculations necessary to con?struct moment-load interaction curves. A strip method of numerical integration was set up to solve the equations of equilibrium for the members, this method allowed a general?ization of the procedure to all shapes of cross-section.nIn setting up the problem for the digital computer, it was not convenient to work with the actual stress distributions. Instead, it was found that the actual stress distri?bution could be represented by three linear stress distribu?tions having the same stress gradient. Load- and moment-functions were computed from these stress distributions and the actual load and moment in the section were determined from these load- and moment-functions.nLoad- and moment-functions for some 86 different condi?tions for T-, angle-, and channel-section members were deter?mined using the digital computer. The great number of additional computations required to construct the interaction curves once the load- and moment-functions are available renders the digital computer method reported herein of ques?tionable use. Further study of the problem could possibly produce methods by which these additional computations could be made by the computer and thereby make the method more efficient and useful.