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Unformatted text preview: Exam II Next Friday 2pm (March 28) Covers Chapters 46 (L9L15) 1 page crib sheet double sided (no workedout problems) 4 problems Sample exam posted on blackboard Ch7: Stress transformation state of stress: 6 components , , normal stresses , , shearing stresses (Note: , , ) x y z xy yz zx x y y x y z z y z x x z = = = Same state of stress is represented by a different set of components if axes are rotated. Transformation Plane Stress Plane Stress state of stress in which two faces of the cubic element are free of stress. (2D stress) Happens when: thin plate subjected to forces acting in the midplane of the plate. xy , , . and x y z z x z y = = = free surface of a structural element or machine component, i.e., at any point of the surface not subjected to an external force. Transformation of Plane Stress equilibrium of a prismatic element with faces perpendicular to the x , y , and x...
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 Spring '08
 LINDASCHADLERFEIST
 Stress

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