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Quadratic shape functions give much more _______

Quadratic shape functions give much more _______

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+1 vote

asked Jan 30, 2022 in Finite Element Method by Ava (110k points)

Quadratic shape functions give much more _______

(a) Precision

(b) Accuracy

(c) Both Precision and accuracy

(d) Identity

The question was posed to me in exam.

My question comes from One Dimensional Problems in section One Dimensional Problems of Finite Element Method

finite element method
one dimensional problems

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1 Answer

+1 vote

answered Jan 30, 2022 by James (185k points)
selected Feb 2, 2022 by Ava

Best answer

Correct answer is (b) Accuracy

The best explanation: The shape function is function which interpolates the solution between discrete values obtained at the mesh nodes. The unknown displacement field was interpolated by linear shape functions within each element. Use of quadratic interpolation leads to more accurate results.

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Quadratic shape functions give much more _______

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