Review of photoelastic image analysis applied to structural birefringent materials: glass and polymers

Michele Scafidi; Giuseppe Pitarresi; Andrea Toscano; Giovanni Petrucci; Sabina Alessi; Augusto Ajovalasit

doi:10.1117/1.OE.54.8.081206

18 March 2015 Review of photoelastic image analysis applied to structural birefringent materials: glass and polymers

Michele Scafidi, Giuseppe Pitarresi, Andrea Toscano, Giovanni Petrucci, Sabina Alessi, Augusto Ajovalasit

Author Affiliations +

Optical Engineering, Vol. 54, Issue 8, 081206 (March 2015). https://doi.org/10.1117/1.OE.54.8.081206

Abstract

Photoelasticity is particularly suitable for the analysis of the stress state in structural materials that are transparent and birefringent. Some techniques of digital photoelasticity (phase shifting and RGB) are applied to the analysis of stress field in two classes of structural materials. The first one consists of tempered glasses, such as those used in the automotive and architectural fields. The second one consists of thermoset polymers, typically used as matrices in fiber reinforced plastic structural composites. The birefringence of such resins is, in particular, exploited to investigate the development of swelling stresses and changes in fracture toughness as induced by water uptake aging.

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Michele Scafidi, Giuseppe Pitarresi, Andrea Toscano, Giovanni Petrucci, Sabina Alessi, and Augusto Ajovalasit "Review of photoelastic image analysis applied to structural birefringent materials: glass and polymers," Optical Engineering 54(8), 081206 (18 March 2015). https://doi.org/10.1117/1.OE.54.8.081206

Published: 18 March 2015

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