Why do we use impact and not tensile testing to accept toughness?
Why do we use impact and not tensile testing to accept toughness?
(OP)
All,
To characterize the toughness, in my company we always use charpy to get acceptance.
From the textbook in my class the toughness of the material is also indicated by the area below the load-displacement or stress-strain curve from tensile testing.
Why we do not accept the data from the tensile testing (the area below the load-displacement or stress-strain curve) in daily life?
Regards,
Steelsjoe
To characterize the toughness, in my company we always use charpy to get acceptance.
From the textbook in my class the toughness of the material is also indicated by the area below the load-displacement or stress-strain curve from tensile testing.
Why we do not accept the data from the tensile testing (the area below the load-displacement or stress-strain curve) in daily life?
Regards,
Steelsjoe





RE: Why do we use impact and not tensile testing to accept toughness?
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"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year
RE: Why do we use impact and not tensile testing to accept toughness?
The only quantitative measure of material toughness is by standard test methods which determine the stress intensity factor (K) for material.
RE: Why do we use impact and not tensile testing to accept toughness?
If you take this further if you are trying to handle resisting explosions you need to test at 10,000x the strain rate of impact testing.
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