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" In most cases, the joints being tested are sewn. Occasionally, components are joined with a looped connection or tied. Joints between textiles and the spacecraft structure (typically metal pins) are also tested using accurate interface geometry." Tests are meant to analzie analyze one joint at a time.

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Since we do not have one of these machines, a modified version using our Instron machine would be advised to perform these tests.

Fore more specific testing procedures and designs go to pages 9-12:  For an in depth look of joint testing check out: https://ntrs.nasa.gov/api/citations/20150003409/downloads/20150003409.pdf

Extra info: https://arc.aiaa.org/doi/abs/10.2514/6.2017-4200#:~:text=A%20parachute%20joint%20is%20defined,called%20seam%20and%20joint%20testing.

 

Tensile Testing

We have already previously used Instron machines for tensile testing, stretching materials to test their strength and elasticity.

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 - Parachutes, https://www.cimne.com/parachutes

 


Sources:

 https://ntrs.nasa.gov/api/citations/20150003409/downloads/20150003409.pdf

https://arc.aiaa.org/doi/abs/10.2514/6.2017-4200#:~:text=A%20parachute%20joint%20is%20defined,called%20seam%20and%20joint%20testing.

https://www.cimne.com/parachutes

https://www.vorticity-systems.com/disciplines/parachutes-and-aerodynamic-decelerators/

Instron Testing