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The development of simultaneous thermo‐ and photo‐elasticity for principal stress analyses
Author(s) -
Barone S.,
Patterson E. A.
Publication year - 1999
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1999.tb01127.x
Subject(s) - photoelasticity , thermoelastic damping , principal component analysis , elasticity (physics) , principal stress , stress (linguistics) , polycarbonate , reflection (computer programming) , principal (computer security) , materials science , stress field , structural engineering , engineering , computer science , composite material , artificial intelligence , physics , thermal , thermodynamics , finite element method , shear stress , linguistics , philosophy , programming language , solid mechanics , operating system
A technique is developed for determining the individual principal stresses by measuring experimentally the sum and the difference of the principal stresses over a surface of an engineering component. This application, which results from previous research on the thermoelastic response of polycarbonate coatings typically used in reflection photoelasticity, is based upon the simultaneous use of thermoelastic stress analysis and automated photoelasticity. Full field patterns of the individual principal stresses can be evaluated, even over complex geometric surfaces, by properly processing the data obtained by the independent experimental techniques.