Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

For the state of stress defined in Example 3, determine the magnitudes and direction cosines of the principal stresses.
(Answers: 147.4 /m²,=+0.7382,m=+0.1266,=+0.6625;76.6 /m²,=-0.6456,m=+0.4172,=+0.6397;-86.1 / m²,= +0.1954,m=+0.9000,=-0.3897.)
from the principal stress.
₁=-86.05/m²
₂=147.4,m/m²
₃=76.61,/m²