SOME OBSERVATIONS ON PHOTOELASTIC MATERIALS STRESSED BEYOND THE ELASTIC LIMIT Open PDF Document Details Document Type Technical Report Publication Date Sep 30, 1953 Accession Number AD0020052 Entities People Bernard Fried Tags Communities of Interest Air Platforms DTIC Thesaurus Topics Bending Moments Creep Creep Tests Crystal Structure Elastic Properties Materials Measurement Mechanical Properties Mechanics Nitrocellulose Optical Properties Physical Properties Plastic Flow Plastic Properties Stress Analysis Stress Strain Relations Stresses