Plastic and nonmetallic article shaping or treating: processes – Explosive or propellant article shaping or treating – Rolling to form sheet or rod
Patent
1983-10-05
1985-11-12
Lechert, Jr., Stephen J.
Plastic and nonmetallic article shaping or treating: processes
Explosive or propellant article shaping or treating
Rolling to form sheet or rod
73788, 102290, 102291, 149 199, C06B 2100, C06B 4510
Patent
active
045527067
ABSTRACT:
A method of determining tensile bond strength and lap shear strength betw a liner/insulation material and a propellant composition which is cured to portions of the liner/insulation material.
The liner/insulation material is bonded to a propellant composition in a dogbone configuration by positioning a predetermined size of the liner/insulation material in a groove that is constructed in a mold in a transverse direction for a tensile bond strength specimen whereby the propellant is bonded to each side of the exposed liner/insulation material. The lap shear specimen is formed in a mold wherein a predetermined size of the liner/insulation material is longitudinally positioned in a groove that is constructed in a mold. The liner/insulation material is centered with a pair of spacers having about one-half of the length of the liner/insulation material to prevent a cast propellant composition from binding to the portion covered by the spacers but to permit the remaining portion of the liner/insulation material to be embedded and cured in the propellant composition that is cast and cured in the mold. After curing the tensile strength specimen and the lap shear specimen having the liner/material bonded to the cured propellant, each specimen is tested in an Instron testing machine to determine bond strength and bond characteristics of the test specimens by evaluating the strain at maximum stress, maximum strain, type of break and total area under the stress strain curve.
REFERENCES:
patent: 3010354 (1961-11-01), Adelman
patent: 3813308 (1974-05-01), Skidmore
patent: 3904715 (1975-09-01), Sieg et al.
patent: 4042441 (1977-08-01), Wasserman et al.
patent: 4120153 (1978-10-01), Schaffling
patent: 4180535 (1979-12-01), Rhoades
patent: 4209351 (1980-06-01), Pierce et al.
patent: 4337218 (1982-06-01), Byrd et al.
patent: 4361526 (1982-11-01), Allen
patent: 4429634 (1984-02-01), Byrd et al.
patent: 4458595 (1984-07-01), Gerrish, Jr. et al.
Gibson Robert P.
Lane Anthony T.
Lechert Jr. Stephen J.
Locker Howard J.
The United States of America as represented by the Secretary of
LandOfFree
Liner-propellant bond tests does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liner-propellant bond tests, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liner-propellant bond tests will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1878969