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CE 203:Structural Mechanics. Week # 1. Policy . Get to know each other Things to know about instructor policy Grading. What is structural mechanics?. Calculation of stresses i.e. relation with external loads Calculating deformations Evaluating structure stability.
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CE 203:Structural Mechanics Week # 1
Policy • Get to know each other • Things to know about instructor policy • Grading
What is structural mechanics? • Calculation of stresses i.e. relation with external loads • Calculating deformations • Evaluating structure stability
What are the important steps in structural design? • Determine internal forces from statics • Know how the material behaves • Now determine required size, deflections and stability of structural members
Types of forces • External forces : can be surface or body • Reactions • Internal
Can we calculate the stress in AC • What about at B? • What about the bolts? • What are the different types of stresses that we see here?
Concept of stress • Definition of average normal stress • Definition of average shear stress • Concept of allowable stress and safety factor
Calculate the normal stress at point A. X-sectional area of I-beam is