Accession Number:

AD0429300

Title:

EFFECTS OF SAMPLE INERTIA, ELASTICITY OF TEST APPARATUS AND INTERNAL HEAT GENERATION IN THE TENSILE STRESS RELAXATION EXPERIMENT,

Descriptive Note:

Corporate Author:

ALLEGANY BALLISTICS LAB HERCULES POWDER CO CUMBERLAND MD

Personal Author(s):

Report Date:

1963-12-01

Pagination or Media Count:

132.0

Abstract:

The tensile stress relaxation test is widely used to measure the mechanical properties of viscoelastic materials. For certain combinations of test conditions and materials, results from this test will be influenced by sample inertia, test apparatus elasticity, andor internal heat generation. In this investigation the magnitude of these effects are estimated and the test conditions under which they become important are specified. Theoretical solutions for a two-parameter Maxwell material are obtained by the Laplace transform method. Solutions for a real material are formulated using the Fourier transform approach and various methods of inverting the transform are outlined. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE