Which of the following are true for toughness
(a) Ability of material to absorb energy before fracture
(b) Measured by Izod & Charpy test
(c) Decreases with the increase in temperature
(d) All of the mentioned
I need to solve this question that I got in my college exam.
Query is from the Stress Strain Diagrams & Mechanical Properties of Engineering Materials section in section Engineering Materials of Machine Design