Toughness properties and service performance of high temperature thermoplastics and their composites

Journal Article · Mon Feb 01 04:00:00 EST 1988 · SAMPE J.; (United States)

OSTI ID:5355273

Wedgewood, A R; Su, K B; Narin, J A

Correlations were made between the fracture toughness of a series of high temperature thermoplastics and the service performance of their composite counterparts. These Du Pont resin systems include polyimide based K-II, K-III, and N polymers, as well as polyamide based J-1 and J-2 polymers. The investigation covered a wide range of resin toughness values for the K-polymer family. The good toughness characteristics of these thermoplastic resins, represented by their high mode I plane-strain fracture toughness, is directly translated into the mode I interlaminar fracture toughness of their respective composite laminates. Improvement of the residual-compressive-strength after impact of the K-polymer based composites is achieved by increasing the neat-resin fracture toughness. 12 references.

• Research Organization: Du Pont de Nemours and Co., Inc., Wilmington, DE (USA); Utah Univ., Salt Lake City (USA)
• OSTI ID: 5355273
• Journal Information: SAMPE J.; (United States), Journal Name: SAMPE J.; (United States) Vol. 24; ISSN SAJUA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
AMORPHOUS STATE
COMPOSITE MATERIALS
FRACTURE PROPERTIES
MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
RESINS
SERVICE LIFE
SYNTHETIC MATERIALS
THERMOPLASTICS