Official Answer
Answer
Dandeettiin cirrachaa gilgaala $P_r$ naannoo qaxxaamuraa gingilchaa kan walga’iin aksiyoonaan akka kufe hayyamuuf ciramuu qabuun murtaa’a. $P_r = \frac{\pi \cdot D \cdot t \cdot S_s}{S_f}$, bakka $t$ furdina gilgaala fi $S_s$ cimina cirrachaa meeshaa gilgaala ($S_s \approx 0.6 S_u$) dha. Seenaariyoota injinariingii irra caalaan alayidii cimina guddaa qabu kan akka 302 Stainless ykn 17-7PH fayyadamuun, $P_r$ dandeettii groove $P_g$ haalaan caala. Kanaafuu, dizaayiniin bottleneck yeroo hunda jechuun ni danda’ama groove deformation dha. Haalota girgiddaa baay’ee haphii ($t < 0.020$ inchii) fi mana sibiilaa meeshaa cimina guddaa qabu qofa keessatti cirrachi gingilchaa haala kufaatii jalqabaa ta’a.
