Official Answer
Answer
Rashin gajiya yakan faru ne a magudanar igiyar ruwa (diamita na ciki ko na waje) inda damuwan lankwasawa ya fi yawa. Don nazarin wannan, muna amfani da ma'auni na Goodman: $_x000c_rac{S_a}{S_e} + _x000c_rac{S_m}{S_u} = _x000c_rac{1}{FS}$, inda $S_a$ shine madaidaicin danniya $(S_${max}-S_{min $S)/2 $(S_{max}+S_{min})/2$, $S_e$ shine iyakar juriya, kuma $S_u$ shine maƙarƙashiyar ƙarfi. Idan igiyar ruwa ta gaza da wuri, ana amfani da SEM (Scanning Electron Microscope) don nemo 'alamomin rairayin bakin teku' da striations. Yawancin gazawar suna haifar da $S_a$ suna da yawa, galibi yana haifar da bugun jini da ba a ƙididdigewa ba ko rashin ɗaukar nauyi, yana barin bazara ya 'tsaye' ko girgiza sosai.
