RT Journal Article
SR Electronic
A1 Trebuňa, František
A1 Jadlovský, Ján
A1 Frankovský, Peter
A1 Bakšiová, Zuzana
A1 Kostelníková, Anna
T1 Further Possibilities of Using Software PhotoStress for Separation of Principal Normal Stresses
JF Acta Mechanica Slovaca
YR 2010
VO 14
IS 4
SP 82
OP 91
DO 10.2478/v10147-011-0038-4
UL https://www.actamechanica.sk/artkey/ams-201004-0010.php
AB Software PhotoStress, elaborated in our laboratories allows determination of directions and magnitudes of strains or principal normal stresses in loaded photoelastically coated structural elements. It allows accelerating process of measurement and evaluation of deformations or stresses in point, along line or along curve, respectively. In those entities can be determined directions, and magnitudes of differences and separated principal deformations or stresses on the basis of photography of loaded photoelastically coated objects. In the paper is given procedure for of evaluation of separated principal normal stresses by using of separation methods: method of difference of shear stresses with using separation strain gage and method of oblique incidence.