Strength of Materials

SALIENT POINTS

• A spring is a device, made out of particular material, which can undergo considerable angular and linear deformation without undergoing permanent distortion.
• Stiffness of a spring is a measure of its capacity and is defined as the load required to produce unit deflection.
• A spring which is subjected to only bending and the resilience is also due to the same is called the bending spring.
• A spring which is subjected to a twisting moment or torsion and the resilence is only due to the same is called the torsion spring.
• Leaf springs (also called as laminated springs) are commonly used in carriages such as cars, lorries and railway wagons.
• Semi-elliptic leaf spring consists of a number of parallel metal strips having different lengths ...