Calculate stresses with gravitational load and weights instead of forces

[brostingy]

please see attached for full problem, i will just write what i have attempted here



stress=youngs modulus x strain; stress = force/area;

The Attempt at a Solution

i started off by using F = m x a, where a is gravity, then worked out sum of forces and bending moments.
this gave me high values for forces at each column. i then divided the forces by the Area, which increased to stresses.

and question b) i have been doing research on it but still searching

thanks in advance

 

[Jhero]

Thank you for sharing your approach to the problem. It seems like you have a good understanding of the basic equations involved in calculating stress. However, it is important to note that the stress-strain relationship also involves the Young's modulus, which represents the stiffness of the material. So, in your equation of stress = Young's modulus x strain, the Young's modulus should be included in the calculation.

In addition, it is also essential to consider the cross-sectional area of the columns, as this will greatly affect the stress values. The area can be calculated by multiplying the width and height of the columns.

For question b), it may be helpful to research different types of materials and their respective Young's moduli. This will give you a better understanding of how different materials can handle stress and strain.

I hope this helps and good luck with your research!