Accession Number : AD0669112

Title :   TOUGHNESS IN PLASTICS BASED ON FRACTURE SURFACE APPEARANCE.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Smith,Herschel L. ; Kies,Joseph A. ; Clark,Austin B. J.

Report Date : MAR 1968

Pagination or Media Count : 14

Abstract : Relationships between fracture toughness and fracture surface appearance in plastic materials were studied and reported on a number of years ago. The report recalls such studies in the light of renewed interest in stretched transparent plastics and shows the relationship which exists between fracture toughness and fracture appearance. (Author)

Descriptors :   (*PLASTICS, TOUGHNESS), FRACTURE(MECHANICS), SURFACE PROPERTIES, CRACK PROPAGATION, AIRCRAFT CANOPIES, STRESSES, ACRYLIC RESINS, FLEXURAL STRENGTH, TRANSPARENT PANELS, MATERIALS, PLASTIC PROPERTIES

Subject Categories : Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE