Experimental Mechanics

, Volume 7, Issue 1, pp 36–40 | Cite as

Stress-fit applications to experimental shell analyses

A procedure is described for accurately determining complete stress distributions in shells from a minimum of experimental data
  • F. J. Witt
  • R. W. Maxwell


The stress-fit method is a procedure for determining complete stress distribution in shells from experimental data. Displacement, slope and shearing-force distributions may also be calculated. The method is applicable to all shell configurations for which closed-form solutions have been formulated and may be applied to certain asymmetrically loaded shells as well as those loaded axisymmetrically. Application to cylindrical and spherical shells is discussed in detail, and the procedure is shown to be verfied experimentally.


Experimental Data Mechanical Engineer Fluid Dynamics Stress Distribution Spherical Shell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



radius at middle surface of cylinder (in.)


the integration constants associated with the analysis of the cylindrical shell


thickness of cylinder (in.)


bending moment (lb-in./in.)


normal force on cylinder (lb/in.)


internal pressure (psi)


axial coordinate of cylinder (in.)


reciprocal of characteristic length of cylinder\((in.^{ - 1} ) = [3(1 - \mu ^2 )/a^2 h^2 ]^{{\raise0.7ex\hbox{$1$} \!\mathord{\left/ {\vphantom {1 4}}\right.\kern-\nulldelimiterspace}\!\lower0.7ex\hbox{$4$}}} \)


Poisson's ratio


stress (psi)



circumferential designation of cylinder


designation of membrane component


axial designation of cylinder


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Copyright information

© Society for Experimental Mechanics, Inc. 1967

Authors and Affiliations

  • F. J. Witt
    • 1
  • R. W. Maxwell
    • 1
    • 2
  1. 1.Applied Mechanics Section, Reactor DivisionOak Ridge National LaboratoryOak Ridge
  2. 2.The University of TennesseeKnoxville

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