Concepedia

TLDR

Working stresses in machine parts are grounded in fundamental principles, and the author argues that the engineering profession requires a general code, citing the 1927 Code for Design of Transmission Shafting as an early effort. The paper aims to encourage the A.S.M.E. to establish a general standard or code on working stress.

Abstract

Abstract This paper contains a general discussion of the fundamentals on which working stresses in machine parts should be based. The terms “failure” and “factor of safety” are also discussed. Rules for the determination of working stress as established by the East Pittsburgh Works of the Westinghouse Co. are given. It is stated as the author’s opinion that the engineering profession is in need of a general code on the subject of working stress. The beginning of such a code has been made in the “Code for Design of Transmission Shafting” approved by the American Standards Association in 1927. In an appendix, this code is also discussed. It is hoped that this paper may lead to some action on the part of the A.S.M.E. toward the establishment of a general standard or code on the subject.