Answer
Fatsawa yayin shigarwa kusan koyaushe yana faruwa saboda haɓakawa (na waje) ko matsawa (na ciki) fiye da madaidaicin fashewar kayan. Don babban karfen carbon, ana danganta wannan da 'Quench Cracks' daga masana'anta ko haɓakar hydrogen. Idan tsaga saman ya kasance crystalline kuma mai haske, karaya ce. Dole ne a sake ƙididdige damuwar shigarwa $S_{inst}$. Misali, idan $S_{inst} = \frac{E t (D_g - D_i)}{(D_g - t) D_i}$ ya wuce UTS, zoben zai gaza. Yin amfani da ƙarin ductile abu kamar 302 Stainless ko rage girman bangon radial na iya hana wannan.