MEC E380 Lecture Notes - Lecture 6: Polar Coordinate System, Neutral Axis, Chief Operating Officer

• School: University of Alberta
• Department: Mechanical Engineering
• Course: MEC E380
• Professor: Cagri Ayranci

Document Summary

7. 3 bending of non symmetric cross sections 7-4. 7. 3. 1 review: bending of symmetric cross section 7-4. 7. 3. 3 bending about both principal axes 7-9. 7. 4 deflection of straight beams with unsymmetrical cross section 7-18. 7. 6. 2 shear stress formula for beams 7-43. 7. 7. 2 circumferential stresses in curved bars 7-58. 7. 7. 3 radial stresses in curved bars 7-68. Mechanical engineers are often called upon to design equipment with moving parts; however one must remember that the support structure is often static or the motion simply induces static loading. Cive 270 extensively discussed simple beams structures, most of which will not be repeated here. It is imperative that the design and analysis of complex beams, of varying shape, materials and of composite structures, subjected to complex loading be thoroughly understood. This section builds on the fundamentals discussed in cive 270 and in the early sections of this course. 7. 3. 1 review: bending of symmetric cross section (7. 1) Figure 7-1: definition of bending and beam curvature.