SK050 Elastic And Plastic Deformation - Young's Modulus

Elastic And Plastic Deformation - Young's Modulus The ratio of the normal stress to the longitudinal strain is called Young's modulus of elasticity. If a wire of length 's' and area of cross section 'a' be stretched by a force F and if a change (Increase) of length Δs is produced , then Normal stress =F/a, Longitudinal strain, ε= Δs /s Modulus of elasticity, E= Normal stress/ longitudinal strain. In the present setup the extension produced is magnified by 40 times for easy observation on a pointer scale. Features: A precision pointer indicator measures the change in length Δs, i. e. the extension. Modular Approach. Sample wire different material. Double hook weight increase the weight in steps corresponding measure the wire extension . Different length of wires can be used. Objectives: To investigate the elastic and plastic extension of metal wires Technical Data: A Base : Cast iron, Length 200 mm, Support rod upto 8-14 mm Metal Wire : Copper 34 SWG, Constantan 34 SWG Scale : Acrylic, 1 div=0.25mm, Pointer Aluminum, length = 200 mm Double Hooke : Brass, Chrome Plated, Fixed double type Mass hook, Capacity 50g. Boss Head : Aluminum alloy, Type Square & round, Object size Up-to 13mm dia Support Rod : Mild Steel L=100cm, L=50cm, L= 25cm Dia. 10mm Scope of Delivery: 1 Rod 1m 2 Rod, 50 cm 1 Rod, 35 cm 2 Rod, 25 cm 2 A’ shaped base 5 Bosshead 3 Clamp block 1 Cu wire 1 Constantan wire 1 Pulley with Banana Plug 1 Pointer Assembly 1 Acrylic Dual Scale Screen 1 Plug 4mm 24 Double hooked mass 50g