- #1
chingel
- 307
- 23
Hello
Is there some data or some formulas to calculate how much does steel wire creep at a constant stress?
If I have, for example, a 1 m steel string with 1 mm diameter under a constant tension of 1000N at a temperature of 20C, how much does it creep or lengthen in a year?
I tried searching the internet for creep rates, but I didn't find anything.
Also, how much does wood creep when I have a pin inside a hole in a wooden block under a constant torque? Let's say the pin has a radius of 5 mm, and a constant 5 Newton-metre torque is applied to it, an additional 5 Newton-metre is required to break free of static friction caused by the tight hole in the wood that the pin is in and make the steel pin turn.
Is there any way to calculate or estimate these creep rates?
Is there some data or some formulas to calculate how much does steel wire creep at a constant stress?
If I have, for example, a 1 m steel string with 1 mm diameter under a constant tension of 1000N at a temperature of 20C, how much does it creep or lengthen in a year?
I tried searching the internet for creep rates, but I didn't find anything.
Also, how much does wood creep when I have a pin inside a hole in a wooden block under a constant torque? Let's say the pin has a radius of 5 mm, and a constant 5 Newton-metre torque is applied to it, an additional 5 Newton-metre is required to break free of static friction caused by the tight hole in the wood that the pin is in and make the steel pin turn.
Is there any way to calculate or estimate these creep rates?