This page is the parent page for the Phoenix Fin Can
Size: 0.75 inch radius fillet
¾” radius fillets and bigger, the fin breaks before fillet
Epoxy: systems 3000
higher temperature epoxy, better structural properties than alternatives
Risks: air bubbles weaken fillet (mitigation: 9% cabosil, vacuum epoxy for 45 minutes)
Later Testing: Make fillets with radii ¾” and under
INSTRON test fins, identify breaking points
Identify smallest radius feasible → reduce drag
...
EPOXY
...
TENSILE STRENGTH
...
ELONGATION AT BREAK
...
COMPRESSIVE STRENGTH
...
GLASS TRANSITION TEMP (K)
...
Systems 3000
...
>36,500 PSI
...
1.7-1.9%
...
>15,000 PSI
...
427
...
Proline
...
9,500 PSI
...
15,000 PSI
...
408
...
Aeropoxy
...
8,000 PSI
...
7%
...
11,500 PSI
...
443
...
MATERIAL
...
Service Temp (K)
...
Density (g/in^3)
...
Weight (g)
...
Therm. Conductivity
(W/mK)
...
Machinability (%)
...
Cost
($/lb)
...
CTE (µm/mK)
...
Stainless Steel
...
1143
...
127.819
...
63.143
...
16-24
...
40-55
...
$0.65
...
16
...
Aluminum
...
623
...
44.2451
...
21.86
...
205
...
75-450
...
$0.33
...
23
...
