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4.2.4.2 OPTIONAL BURST PRESSURE TESTING
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TESTING
Desired Performance
The piston must be able to supply enough force at its operating pressure to break the shear pins with a 2x safety factor, which is the safety-critical guideline for parachute components presented by NASA (Section 3.3.1.5). The same source (Section 3.3.1.6) dictates a design burst pressure factor of 2x the maximum design pressure, which aligns with DTEG requirement 4.2.2. [5] Then, to determine when the cylinder will burst, we make use of thin-walled pressure vessel theory [2], paraphrased below:
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