Accession Number:

ADA021121

Title:

Design Mechanical Properties Including Fracture Toughness and Fatigue, Fatigue Crack Propagation Rates and Corrosion Characteristics of Alclad 7050-T76 Sheet.

Descriptive Note:

Final rept. Oct 73-Oct 75,

Corporate Author:

ALUMINUM CO OF AMERICA ALCOA CENTER PA ALCOA LABS

Personal Author(s):

• Coursen,J. W.
• Nordmark,G. E.
• Sha,G. T.
• Walsh,J. D.

Report Date:

1976-01-01

Pagination or Media Count:

112.0

Abstract:

The tensile, compressive, shear, bearing, fracture toughness and axial-stress fatigue properties, fatigue-crack propagation rates and corrosion characteristics have been determined for 10 lots of alclad 7050-T76 sheet ranging from 0.025-in. through 0.249-in. thick. Tables of computed design mechanical properties and individual tensile and compressive stress-strain curves are presented. The effect of stretching on the tensile properties was also studied. Axial-stress fatigue strengths and fatigue-crack propagation rates were determined in ambient-air and salt-fog environments.

Descriptors:

• *ALUMINUM ALLOYS
• MECHANICAL PROPERTIES
• CORROSION
• FRACTURE(MECHANICS)
• CRACK PROPAGATION
• SHEETS
• FATIGUE(MECHANICS)
• CLADDING

Subject Categories:

• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE