how do scientists determine material properties, e.g tensile strength, hardness, thermal coefficient, etc?

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how do scientists determine material properties, e.g tensile strength, hardness, thermal coefficient, etc?

In: Engineering

3 Answers

Anonymous 0 Comments

All sorts of ways! We have many machines to help do it too.

We pull it slowly to see how much force it takes to stretch the material, this is tensile strength.

We smack it fast to see it’s impact resistance.

We zap it will electricity to see how much and how fast it gpes through it

We heat it up to see how much energy it takes to melt it. Then cool it down to see how it turns solid. We even chop it up to see what shapes are made inside using microscopes (different shapes and patterns can br made depending on how fast you cool it).

Just a few of many many techniques we use to find material properties.

Anonymous 0 Comments

Each of these values have an equation. For tensile strength it’s something like t=s*A where t is maximum tension s is yield strength and A is cross sectional area. Get something of known cross sectional area, pull on it till it breaks, and plug in the numbers.

Anonymous 0 Comments

They put them on a rig and test them, by pulling, heating, twisting etc. they can determine the properties of a known sample.