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Strength of Materials by V. Ramasamy, P. Purushothama Raj

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7.3 LEAF SPRINGS

Leaf springs (also called as laminated springs) are commonly used in carriages such as cars, lorries and railway wagons. Shocks of vehicles give unpleasant feeling to the passengers and hence springs are used to absorb such shocks. The energy absorbed by such springs during a shock is immediately related without contributing for any useful work.

There are two main types of leaf springs, viz., the semi-elliptic leaf spring and the quarter-elliptic leaf spring.

7.3.1 Semi-elliptic Leaf Springs

This type of spring consists of a number of parallel metal strips having different lengths and of same width which are placed one over the other. The reason for such an arrangement is to provide uniform strength in the spring. These springs ...

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