Torsion and Twist
The chapter covers the concept of torsion, focusing on the mechanics of twisting structural members, particularly shafts, under torque. It delves into the calculations of torsional shear stress, angle of twist, and deformation, highlighting the behavior of both solid and hollow shafts. Additionally, the chapter explores the complexities of stepped shafts, the effects of fixed supports, and the analysis of helical springs under axial loads.
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What we have learnt
- Torsion is the twisting of structural members caused by applied torque.
- The shear stress in a circular shaft can be calculated using the formula τ = Tr/J.
- The angle of twist is determined by the relationship θ = TL/GJ, applying to various shaft configurations.
Key Concepts
- -- Torsion
- The twisting of a structural member when subjected to an external torque.
- -- Torsional Shear Stress
- The shear stress experienced by a shaft at a given radius due to applied torque.
- -- Angle of Twist
- The angular deformation experienced by a shaft under the effect of torque.
- -- Stepped Shafts
- Shafts composed of multiple sections with varying diameters or materials, where the total twist is calculated as the sum of individual twists.
- -- Helical Springs
- Springs that behave as torsional elements when under axial load, characterized by specific shear stress and deflection formulas.
Additional Learning Materials
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