The stress is not zero because there are forces pulling the bar apart.physea said:
Ask this guy if the stress is zero:physea said:
No, it isn't.physea said:
To calculate average stress, you need to find the sum of all the stress values and then divide it by the total number of stress values. The formula for average stress is: Average Stress = (Stress1 + Stress2 + ... + Stressn) / n, where n is the number of stress values.
The units of average stress depend on the units of the individual stress values. For example, if the stress values are in pounds per square inch (psi), then the units of average stress will also be psi. It is important to ensure that all the stress values used in the calculation have the same units.
Yes, average stress can be negative. This can happen if the stress values used in the calculation have different signs (positive and negative). In such cases, the average stress will also have a negative sign. This could indicate that the material is experiencing both compressive and tensile stresses.
Calculating average stress only gives an overall measure of the stress on a material. It does not provide information about the distribution of stress throughout the material. Therefore, it may not accurately represent the true stress state of the material. Additionally, average stress does not take into account the type of stress (tensile, compressive, shear, etc.) which could be important in certain applications.
Average stress can be used in engineering applications to determine the overall stress level on a material and to compare it with the material's yield strength. It can also be used to analyze the stress distribution in simple structures or components. However, for more complex structures or materials with non-uniform stress distribution, other stress analysis methods may be more appropriate.