Accession Number:

AD0847163

Title:

Material Response Studies (MARS I). Volume 3: Development of Multiaxial Stress High Strain Rate Techniques

Descriptive Note:

Final rept.

Corporate Author:

GENERAL MOTORS TECHNICAL CENTER WARREN MI MATERIALS AND STRUCTURES LAB

Personal Author(s):

• Green, S. J.
• Leasia, J. D.
• Perkins, R. D.
• Maiden, C. J.

Report Date:

1968-01-01

Pagination or Media Count:

70.0

Abstract:

Results are reported on the development of techniques to determine material yield andor fracture under multiaxial stress loadings at strain rates to 100second. An evaluation of various methods of biaxial and triaxial loading was made in order to determine a suitable method of testing both structural and ablator materials. Hence, the loading method and tubular specimen configuration are for nonhomogeneous, nonisotropic, brittle materials as well as more conventional ductile metals. A Biaxial Strain-Rate Machine has been built and some preliminary tests conducted. Details of the design and instrumentation are presented as well as preliminary data on an aluminum alloy.

Descriptors:

• *COMPOSITE MATERIALS
• *STRAIN GAGES
• PISTONS
• ALUMINUM ALLOYS
• STRUCTURAL PROPERTIES
• LOADS(FORCES)
• SHOCK WAVES
• SHOCK(MECHANICS)
• TEST METHODS
• HIGH PRESSURE
• TEST EQUIPMENT
• FRACTURE(MECHANICS)
• IMPACT SHOCK
• BRITTLENESS
• STIFFENED CYLINDERS
• DUCTILITY
• BLAST
• HEAT RESISTANT ALLOYS
• YIELD POINT
• STRESSES
• ABLATION

Subject Categories:

• Laminates and Composite Materials
• Metallurgy and Metallography
• Test Facilities, Equipment and Methods
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE