The Numerical Simulation Method of the Slot Crack Groups’ Effect Analysis for Solid Rocket Motor Grain

Table 1

The sizes of propellant unilateral crack specimen.

(mm)	(mm)	(mm)	(mm)
120.0	10.0	5.0	2.0, 3.0, 4.0, 5.0, 6.0

Note: the test temperature was 20°C, the humidity was 69%, and the atmospheric pressure was 103.0 kPa.