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Internal Friction in Metals


Alford, Jack Leland (1950) Internal Friction in Metals. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/J7H1-BJ17.


A summary of the current knowledge on the subject of internal friction is presented. An experimental investigation of the variation of specific damping capacity with torsional stress for three metals is described. It is found that the specific damping capacity can be represented. Calculations are made of the effect on specific damping capacity of type of stress and of non-uniform distribution of stress; the calculations are compared with the available experimental data. An expression is proposed to describe the manner in which energy dissipation varies with stress amplitude

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Mechanical Engineering and Electrical Engineering
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Mechanical Engineering
Minor Option:Electrical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Hudson, Donald E.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1950
Record Number:CaltechETD:etd-03272007-080746
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1166
Deposited By: Imported from ETD-db
Deposited On:27 Mar 2007
Last Modified:31 Mar 2023 16:52

Thesis Files

PDF (Alford_jl_1950.pdf) - Final Version
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