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Maximum Stress in a Cylindrical Bar of Double Wedge Cross Section Under Torsion


Williams, Max L. (1948) Maximum Stress in a Cylindrical Bar of Double Wedge Cross Section Under Torsion. Engineer's thesis, California Institute of Technology. doi:10.7907/52Z6-WX56.


A comparison of an exact calculation of maximum stress in a cylindrical rod under torsion is compared to the usual engineering approximation which takes the maximum stress as that existing on the boundary of the largest circle inscribed in the given cross section. A numerical example for a symmetrical thin double wedge cross section is calculated and essential agreement in stress magnitude found, although there was an eight degree difference in the location of the point of maximum stress.

Item Type:Thesis (Engineer's thesis)
Subject Keywords:Aeronautics
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Sechler, Ernest Edwin
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1948
Record Number:CaltechETD:etd-05222003-090841
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1932
Deposited By: Imported from ETD-db
Deposited On:23 May 2003
Last Modified:22 Mar 2023 22:30

Thesis Files

PDF (Williams__ml_1948.pdf) - Final Version
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