Engineering Studies – H1 Civil Engineering – Mechanical Analysis
This topic investigates the stress and strain in structures and methods of analysing the magnitude of those forces and deformations.
- Types of stress
- Defining strain
- Young’s modulus of elasticity
- Load /extension graphs
- Tension and compression Forces
- Define stress and list the common types of stress.
- Explain the units used in stress values.
- What defines the difference between shear stress and compressive stress?
- What test is being performed to create a load / extension diagram?
- What material properties can be identified by the curve produced by a tensometer?
- What criteria are used to determine a factor of safety (FoS)?
- Define the Modulus of Elasticity and why it is relevant.
- Define material properties such as strength, elasticity, plasticity, ductility, brittleness, yield strength, proportional limit, ultimate tensile strength and toughness.
- What shape and features of a stress/strain diagram are used to identify the type of material that was tested?
- Why is the value for true stress different from the value we commonly calculate for stress?