- #1
slingboi
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I have tried it and the units end up being Nm^-2 (the unit of stress) however the unit for joules is Nm.
Calculating Stress in Joules: My Experience
- Thread starter slingboi
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In summary, stress is a measure of the force acting on a material per unit area and is calculated by dividing the force applied to an object by its cross-sectional area. The units for stress are typically expressed in pascals (Pa) or newtons per square meter (N/m^2), but can also be expressed in pounds per square inch (psi) or atmospheres (atm). Stress cannot be directly converted to joules, but can be used to calculate the strain of a material, which can then be used to determine the amount of energy required to deform the material. The factors that can affect stress calculations include the type of material, its composition and structure, the magnitude and direction of the applied force, and the dimensions of
- #2
Studiot
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How do you work this out?
Strain is length/length ie dimensionless.
Stress is force/area. ie force/m2. Multiply this by volume (m3) and you get force time distance ie work (energy).
It does work out
- #3
slingboi
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Ohhh, thanks! i get it now!
Related to Calculating Stress in Joules: My Experience
1. What is stress and how is it calculated?
Stress is a measure of the force acting on a material per unit area. It is calculated by dividing the force applied to an object by its cross-sectional area.
2. What are the units for stress?
The units for stress are typically expressed in pascals (Pa) or newtons per square meter (N/m^2). In some cases, it may also be expressed in pounds per square inch (psi) or atmospheres (atm).
3. How can I convert stress to joules?
Stress cannot be directly converted to joules, as they are different units of measurement. However, stress can be used to calculate the strain of a material, which can then be used to determine the amount of energy (in joules) required to deform the material.
4. What factors can affect stress calculations?
The factors that can affect stress calculations include the type of material, its composition and structure, the magnitude and direction of the applied force, and the dimensions of the object.
5. Can stress calculations be used for all materials?
No, stress calculations are most accurate for materials that behave in a linear elastic manner, meaning they return to their original shape once the force is removed. Materials such as plastics, metals, and ceramics are typically suitable for stress calculations, while others like rubber or foam may not be.
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