Experimental Mechanics

, Volume 4, Issue 3, pp 84–88 | Cite as

Some low-modulus birefringent resins

The formulation and casting techniques of some low-modulus polyurethane resins are discussed by the authors
  • A. San Miguel
  • E. N. Duran


Information is given to enable the photoelastician to select and prepare his own clear, bubblefree, constant-thickness, low-modulus (500 psi or less) birefringent resins. Various urethane formulations are examined. The effects of environment, mixing, casting, molds, cure, post-cure and calibration are discussed. A procedure to select a particular formulation is suggested.


Mold Mechanical Engineer Fluid Dynamics Urethane Urethane Formulation 
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.


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Copyright information

© Society for Experimental Mechanics, Inc. 1964

Authors and Affiliations

  • A. San Miguel
    • 1
  • E. N. Duran
    • 1
  1. 1.Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadena

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