Experimental Mechanics

, Volume 23, Issue 1, pp 21–29 | Cite as

Experimental study of inelastic strain patterns in a model of a tube-plate ligament using an interferometric moiré technique

Elasto-plastic strain patterns were measured in a model element of a heat-exchanger tube plate, with the ultimate objective of gaging the effect of plasticity on strain-concentration factors
  • C. A. Walker
  • J. McKelvie
  • A. McDonach


A sensitive moiré interferometer has been developed for measuring elasto-plastic strain distributions. No rigid connection with the specimen was required, and the fringe patterns could be seen by eye as loading progressed. The system has been applied to the measurement of strain patterns in a stainless-steel model of a tube-plate ligament. The model was loaded in tension and in bending, with the eventual aim of measuring strain-intensification factors which could be used as basic design data.


Experimental Study Mechanical Engineer Fluid Dynamics Strain Distribution Basic Design 
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Copyright information

© Society for Experimental Mechanics, Inc. 1983

Authors and Affiliations

  • C. A. Walker
    • 1
  • J. McKelvie
    • 1
  • A. McDonach
    • 1
  1. 1.Centre for Industrial InnovationUniversity of StrathclydeGlasgowUK

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