Question

The final impact value is obtained by dividing the _________ by the cross-sectional area in the Charpy test.

(a) heat of the specimen

(b) cross-sectional damage

(c) energy of fracture

(d) cross-sectional area

This question was addressed to me in an interview for job.

My question is based upon Aircraft Materials topic in chapter Testing Aircraft Materials of Aerospace Materials & Processes

Answer 1

Correct answer is (c) energy of fracture

The best I can explain: There is a formula that is required to obtain the impact value from the test. In the Charpy impact test, it is found by dividing the Energy of fracture by the cross-sectional area of the specimen. The final Izod impact value is obtained by dividing the energy of fracture to the width of the specimen.