Here we discuss about the basic concepts of engineering design. We will learn about the uncertainty and risk associated with engineering design and how safety margin should be set to avoid failure. The allowable stress method described here, uses the safety factor to achieve the required safety margin.
The main learning outcomes are:
- Distinguish between maximum stress and allowable stress
- Identify the risk and uncertainties in engineering design
- Describe safety factor
- Describe design equation and apply it in simple stress problems
0:00 Introduction
1:14 Design concepts based on strength criteria
2:32 Uncertainty and risk
6:17 Factor of safety and allowable stress
8:26 Factor of safety in existing structures
9:31 Example of designing a bolt connection
10:37 Normal stress in the gusset plate
12:56 Bearing stress between bolts and the gusset plate
14:15 Shear stress in the bolts
15:38 Maximum allowable force in the connection
Негізгі бет The Concept of Engineering Design (Method of allowable stress)
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