Assuming that the component is made of a brittle steel material and fails under the given operating stresses, failure would occur along planes whose normal is oriented at ~ degrees from the horizontal direction. (Hint: brittle materials are susceptible to failure due to excessive normal stress) A) 6 B) 12 C) 18 D) 24 E) 57 F) 69 13. Assuming that the component is made of a ductile steel material and fails under the given operating stresses, failure would occur along planes whose normal is oriented at ~ degrees from the horizontal direction. (Hint: ductile materials are susceptible to shear failure)