4. A triangular support bracket is shown in the figure. The bracket is modeled a

ID: 2323403 • Letter: 4

Question

4. A triangular support bracket is shown in the figure. The bracket is modeled as a

plane stress problem, which is discretized into a two elements with 4 nodes. The

displacements at the nodes 1 and 2 are found to be

(u1 v1) = (0.00195 mm -0.00111mm) and

(u2 v2) = (0.000098mm -0.00055mm)

respectively. Find the stress and the

displacement vector at the center of the second element. The thickness of the

bracket is t=10 mm, the Young’s modulus, E=70,000 MPa and the Poisson’s ratio,

v= 0.3.

30 mm 100 N 50 N 20 mm 10 mm 15 mm

need some more data

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