Question

Calculate the direct compressive stress when the reaction force is 15340N and the thickness and width of the crank web are 46mm and 75mm?

(a) 8.43N/mm^2

(b) 4.44N/mm^2

(c) 5.54N/mm^2

(d) 3.68N/mm^2

This question was posed to me in semester exam.

Enquiry is from IC Engine topic in chapter Design of IC Engine Components of Automotive Engine Design

Answer 1

Correct choice is (b) 4.44N/mm^2

Explanation: σc=\(\frac{(R_1)_v}{W_t}\)

               \(\frac{15340}{46\times 75}\)   

                =4.44N/mm^2