crwdns2933803:026crwdne2933803:0
crwdns2933797:0Anthony Kouttroncrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Anthony Kouttron
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| - | [* black] Why did this simulation not fail? Was the part designed right all along and it was simply user abuse that caused it to fail? The answer can be yes or no. |
|---|---|
| - | [* black] The force on the end cap will vary depending on the mass of the entire body and the angle of impact. In this case, the type of plastic plays an important role in discovering the failure mode of the part. PC-ABS is a blend of Polycarbonate and ABS and varies based on PC:ABS concentration, recycled content concentration, and manufacturer preferences. |
| - | [* black] Overall, the PC-ABS blend has a greater tensile strength than normal ABS, but has a lower fatigue endurance. Thus, the part may be able to endure impact and rough handling, but continued exposure to impact damage can lead to sustained damage and eventual failure. |
| + | [* black] Why did this simulation pass? Was the part designed right all along or was it simply user abuse that caused it to fail? The answer is more complicated than "yes" or "no." |
| + | [* black] Of course the force on the end cap will vary depending on the mass of the entire body and the angle of impact incidence, but in this case the type of plastic plays an important role in discovering the failure mode of the part. |
| + | [* black] PC-ABS is a blend of Polycarbonate(PC) and ABS and varies based on PC:ABS concentration, recycled content concentration, quality of recycled content and manufacturer preferences. |
| + | [* black] Overall, a pure PC-ABS blend has a greater tensile strength than pure ABS and shares a similar high-strength and high impact resistance common to PC. According to [https://web.statler.wvu.edu/~rliang/paper688.pdf|this] study, the yield strength of 50:50 pure PC:ABS is 51.78MPa while pure abs is 42.8MPa. |
| + | [* black] The stock yield strength of PC-ABS provided with Fusion360 is 54.4MPa. This would put the fusion360 PC-ABS on par with the 70:30 pure PC:ABS yield strength included in the study. |