Determination of Parachute Joint Factors using Seam and Joint Testing | Zendy

Catherine Mollmann | Zendy

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Determination of Parachute Joint Factors using Seam and Joint Testing

Author(s) -

Catherine Mollmann

Publication year - 2015

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2015-2125

Subject(s) - joint (building) , structural engineering , component (thermodynamics) , engineering , computer science , reliability engineering , mechanical engineering , thermodynamics , physics

This paper details the methodology for determining the joint factor for all parachute components. This method has been successfully implemented on the Capsule Parachute Assembly System (CPAS) for the NASA Orion Crew Module for use in determining the margin of safety for each component. Also discussed are concepts behind the joint factor and what drives the loss of material strength at joints. The joint factor is defined by Knacke as a “loss in joint strength...relative to the basic material strength” that occurs when “textiles are connected to each other or to metals.” 1

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