Toughness and Impact Strength of Metals

Charpy test
Charpy test

Toughness and Impact Strength of Metals

Toughness is the resistance to the impact loading against fracture. If a metals is tough, then it has the ability to store large strain energy before failure, deflection curve up to fracture stage.

Modulus of Toughness

It is the total strain energy per unit volume upto fracture stage. it is equal to the area under stress strain curve upto fracture. Generally, greater the toughness, greater will be the toughness. Therefore Mild Steel is more tough than High tensile steel.

Charpy impact test is used to Measures the amount of Energy Absorbed during fracture of a specimen in a standardized test. French scientist Georges Charpy developed test in 1905.

Charpy test
Charpy test
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About Anand Paul 253 Articles
...an Engineer and Tutor. Anand Paul is a bridge engineer at ch2m Global Design Center, Hyderabad. He is responsible for regional and local design projects. Committed to quality and timely delivery, he has been assigned multiple domain projects in Middle and India. Being a programmer, he is leading in-house spreadsheet development team. Apart from his routine, he runs CivilDigital.com, an exclusive Civil Engineering website.