Responsible: Jack Ansley
Facilitated by Timothy Stubbs
Conducted in the Aerospace Materials and Structures Laboratory
Goal:
Determine which method of turning the tecnora lines into loops will be strong enough to withstand the opening shock force, and secondarily determine if easier methods of looping the lines will be sufficiently strong and can be used instead of insertion joints.
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Media:
Google Drive Folder with videos of each test
Analysis:
- Insertion joints maxed out the instron (5 kN), which was to be expected
- Figure 8 did second best, broke near knot around 4.3 kN and 3.3 kN
- Bowline was the worst, broke around 3 kN (and broke inside the knot, not on the rest of the cord)
- Expected slippage of the figure 8 knot but did not observe any, which is interesting (indicates stopper knots would not be required)
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