Question

A newly designed case-bonded rocket motor with a simple end-burning grain failed and exploded on its first test. The motor worked well for about 20% of its burn time, when the record showed a rapid rise in chamber pressure.

List two possible reasons for the failed test, and suggest design changes that could prevent failure in the future.

Answer 1

The possible reasons for the failed test for designed case-bonded rocket motor and design changes are following as :

• Product deficiencies
• Poor positioning of rocket motor
• High Pullutant emission produced

The possible design changes that count prevent failure in the future are following as :

1. Report discussion is required to prevent structural failure to prevent in future.
2. Obtain timely information regarding new designed product to prevent failure in future .
3. Create failure analysis framework to prevet failure in future.