Calculate Internal Loads in Axial Assembly

What are the internal loads in bars (1), (2), and (3) of the axial assembly?

Given data: Two loads of Q= 25 kN each at flange B, two loads of R = 15 kN at C, and a load of P = 35 kN at end A, calculate the internal loads.

Internal Loads Calculation:

The internal loads in an assembly are as follows:

• Bar (1): Internal load N1 = 35 kN upwards
• Bar (2): Internal load N2 = 15 kN upwards
• Bar (3): Internal load N3 = 15 kN downwards

Explanation:

Calculating internal loads in an assembly involves using equilibrium equations to find the forces exerted. Here's how the internal loads were determined:

At end A, a downward force of P = 35 kN is applied. To maintain equilibrium, bar (1) experiences an internal load N1 of 35 kN upwards.

At flange B, two loads of Q = 25 kN each result in an upward force of 50 kN. Subtracting the load in bar (1), the internal load in bar (2) is 15 kN upwards.

At point C, two loads of R = 15 kN each produce a downward force of 30 kN. After deducting the load in bar (2), the internal load in bar (3) is 15 kN downwards.

To visualize these internal loads, plot them against the length of the bars. Label the y-axis as 'Internal Force N (kN)' and the x-axis as 'Length (m)'. Create segments representing each bar with their respective internal loads as y-values.

For a more in-depth guide on Internal Loads Calculation, you can refer to additional resources.