The 3-dimensional state of stress at a point in a mechanical part is given by the 40 20 -181 20 28 12 kpsi L-18 12 14 matrix S = = • Find the principal normal stresses (eigenvalues) in kpsi. Use the roots () function in MATLAB. • Find the principal directions (unit eigenvectors).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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The 3-dimensional state of stress at a point in a mechanical part is given by the
40 20 -181
20 28
L-18 12 14
matrix S =
12 kpsi
●
Find the principal normal stresses (eigenvalues) in kpsi. Use the roots ()
function in MATLAB.
• Find the principal directions (unit eigenvectors).
Transcribed Image Text:The 3-dimensional state of stress at a point in a mechanical part is given by the 40 20 -181 20 28 L-18 12 14 matrix S = 12 kpsi ● Find the principal normal stresses (eigenvalues) in kpsi. Use the roots () function in MATLAB. • Find the principal directions (unit eigenvectors).
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