seminar 2 solutions
Post on 14-Jul-2016
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DESCRIPTION
Solutions to various design problems.
TRANSCRIPT
January 12/14th, 2016 Seminar #2 Mec E 360
Problem 1: Find the principal stresses given
𝜎𝜎𝑥𝑥𝑥𝑥 = 50 MPa
𝜎𝜎𝑦𝑦𝑦𝑦 = 30 MPa,
𝜏𝜏𝑥𝑥𝑦𝑦 = 20 MPa
𝜎𝜎𝑧𝑧𝑧𝑧 = 10 MPa
January 12/14th, 2016 Seminar #2 Mec E 360
Problem 2: Determine the material index for a light, strong, simply supported beam with a point load at the centre with a fixed length 𝑙𝑙.
January 12/14th, 2016 Seminar #2 Mec E 360
Problem 3 Find the material index for a telescope mirror of diameter 2𝑅𝑅. The self-weight deflection of the centre cannot exceed the wavelength of light.
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