Accession Number:

AD0752496

Title:

Aircraft Glazing Materials. Resistance to Crack Propagation. Glazing Materials.

Descriptive Note:

Memorandum rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

• Kies,Joseph A.
• Smith,Herschel L.

Report Date:

1954-10-01

Pagination or Media Count:

23.0

Abstract:

The toughness of stretched acrylics measured in terms of the work for crack propagation is discussed in relation to improvements in serviceability of aircraft canopies. A test method for measuring the resistance to crack propagation is described. The use of a birefringence test in quality control is also discussed. Author

Descriptors:

• (*AIRCRAFT CANOPIES
• ACRYLIC RESINS)
• (*ACRYLIC RESINS
• CRACK PROPAGATION)
• FRACTURE(MECHANICS)
• QUALITY CONTROL
• BIREFRINGENCE
• TEST METHODS

Subject Categories:

• Aircraft
• Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE