STRENGTH OF DUCTILE METAL MOTOR CASES.
LOCKHEED MISSILES AND SPACE CO SUNNYVALE CALIF
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Experimental data for steel motor cases which behaved in a ductile manner to burst, are compared with theories both for yield behavior, and behavior at plastic instability. It is concluded that end domes of actual vessels affect behavior of cylindrical sections in a manner which departs from present theories when lengthdiameter ratios of motor cases approach small values. Present theories require modification for finite-length, closed-end vessels. Author