Some field applications of the photoeleastic stressmeter

Theory and application of the hard inclusion technique for the measurement of in situ stresses in prestressed concrete box-girder bridges

“…However I would like to refer him to the papers by Roberts et al 20,21 which show that the photoelastic method of measuring stresses has considerable drawbacks. The use of photo-elastic methods is very limited in the fields of civil and structural engineering.…”