Third Edition MECHANICS OF MATERIALS - …（第三版材料力学-u2026）.pdf

Third Edition MECHANICS OF CHAPTER MATERIALS Ferdinand P. Beer E. Russell Johnston, Jr. Analysis and Design John T. DeWolf of Beams for Bending Lecture Notes: J. Walt Oler Texas Tech University Beer • Johnston • DeWolf Analysis and Design of Beams for Bending Introduction Shear and Bending Moment Diagrams Sample Problem 5.1 Sample Problem 5.2 Relations Among Load, Shear, and Bending Moment Sample Problem 5.3 Sample Problem 5.5 Design of Prismatic Beams for Bending Sample Problem 5.8 5 - 2 Beer • Johnston • DeWolf Introduction • Objective - Analysis and design of beams • Beams - structural members supporting loads at various points along the member • Transverse loadings of beams are classified as concentrated loads or distributed loads • Applied loads result in internal forces consisting of a shear force (from the shear stress distribution) and a bending couple (from the normal stress distribution) • Normal stress is often the critical design criteria My M c M