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Question

Consider a 4 node rectangular finite element given earlier in the class notes with x

dimension a=3 cm and y dimension b-4 cm, and a thickness of 1 cm. For steel which has

a mass density of 8 g/cm³, find the first row of the consistent mass matrix (8 terms) for

the element and the first diagonal entry of the lumped mass matrix using the row-sum

technique.

Fig: 1