Official Answer
Answer
Impeta zigumana impeta zishyirwaho mugukwirakwiza ibishishwa no 'kuzunguruka' muri ruhago. Kugirango wirinde guhoraho, impeta ntigomba kwagurwa kurenza imipaka yayo. Kwaguka kwinshi $ S_ {max} $ bigarukira kubibazo bya fibre $ \ sigma = \ frac {E t (D_g - D_f)} {(D_f) (D_g)} $ aho $ D_g $ ni diameter ya groove na $ D_f $ ni diameter yubusa. Gukoresha mandel yo kwishyiriraho cyangwa amaboko yapimwe birasabwa guterana amajwi menshi kugirango harebwe no gukwirakwiza impungenge zo kwaguka. Niba impeta yaguwe cyane kuburyo $ \ sigma> S_ {umusaruro} $, impeta ntizasubira inyuma cyane muri ruhago, bigabanya ubushobozi bwo gutwara ibintu $ P_a = \ frac {D d S_y \ pi} {K} $.
