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What's difference between resistance, stress and strength?
- Thread starter mekafime
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LittleInch
Petroleum
Pretty basic questions...
Resistance is usually expressed as a force e.g Newtons or N
Stress is usually expressed as a pressure or force per unit area e.g N per m2 or Pascal's Pa
Strength is often the maximum stress a material can accept before it yields or breaks. Ductile materials e.g steel it's the yield stress you normally use. Brittle materials e.g glass might be the Ultimate stress where it breaks.
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Resistance is usually expressed as a force e.g Newtons or N
Stress is usually expressed as a pressure or force per unit area e.g N per m2 or Pascal's Pa
Strength is often the maximum stress a material can accept before it yields or breaks. Ductile materials e.g steel it's the yield stress you normally use. Brittle materials e.g glass might be the Ultimate stress where it breaks.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
- Thread starter
- #3
Resistance can be understood as the amount of force required to push a body or a fluid or electrons through an opening, or a pipe, or wire.
Stress is a measurement of the force one element of material applies to adjacent elements of the same body. For example when a force is applied to a fixed object, it creates internal stress, and the object deforms, also called strain.
Strength would the maximum force the object can absorb without failure.
Stress is a measurement of the force one element of material applies to adjacent elements of the same body. For example when a force is applied to a fixed object, it creates internal stress, and the object deforms, also called strain.
Strength would the maximum force the object can absorb without failure.
"Resistance can be understood as the amount of force required to push a body or a fluid or electrons through an opening, or a pipe, or wire."
Not quite true for electrical resistance, which is the ratio of the electromotive force to the amount of current supplied, and has units of ohms.
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
Not quite true for electrical resistance, which is the ratio of the electromotive force to the amount of current supplied, and has units of ohms.
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
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