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DEPARMENT OF NUCLEAR ENGINEERING MASSACHUSETTS INSTITUTE OF TECHNOLOGY NOTE INTRODUCTION TO STRUCTURAL MECHANICS Lothar Wolf*, Mujid S. Kazimi** and Neil E. Todreas Nominal Load Point 35 55 6569 100 1 -25 Max theory DE theory Limiting PointsMohr theory Max theory -45 -60 Load Line -100 Shear Diagonal 2 * Professor of Nuclear Engineering (retired), University of Maryland ** TEPCO Professor of Nuclear Engineering, Massachusetts Institute of Technology KEPCO Professor of Nuclear Engineering, Massachusetts Institute of Technology Rev 12/23/03 ENGINEERING OF NUCLEAR REACTORS Fall 2003 NOTE INTRODUCTION TO STRUCTURAL MECHANICS L. Wolf Revised by Kazimi and Todreas 1979, 1993, 1994, 1995, 1996, 1998, 2000, 2003 12/23/03 TABLE OF CONTENTS Page 1. Definition of 1 Concept of State of Stress ........................................ ........................................ ........... 4 Principal Stresses, Planes and Directions.

Note L.4 Page 3 F 1 + F 2 + ... + F n = ∑ F n = 0 (1.1a) n The total moment of all the forces in Fig. 3 about an arbitrary point 0 must be zero since the vector sum of forces acting on each particle is zero.

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