Example Question

Example Question

Conservation of Energy example question

Calculate the horizontal displacement of point B (Δ_B →).

Calculate the horizontal displacement of point B (Δ_B →).

Click below to show answer. X

Step 1:
Calculate internal forces in truss members using method of joints

Step 1:
Calculate internal forces in truss members using method of joints

Conservation of Energy solution step 1

Step 2:
Construct table of N, L and N²L for all members

Step 2:
Construct table of N, L and N²L for all members

Conservation of Energy solution step 2

Step 3:
U_e = U_i to calculate Δ_B (→)

Step 3:
U_e = U_i to calculate Δ_B (→)

Conservation of Energy solution step 3

Useful formula:

Useful formula:

Conservation of Energy formula

Now that you've mastered this question, you can try Question 1.