Elastic and Plastic Deformation

ELASTIC AND PLASTIC DEFORMATION SK050

Exp-1 To investigate the elastic and plastic extension of metal wires.

Easy setup.
Modular approach.

Young's modulus.
Strain.
Stress.
Elastic Limit.
Hooke's law.

Principle and Working:
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.

Contents:

Cat. No.	Item Name	Qty.
C9807	Rod 1m	1
C9812	Rod, 50cm	3
C9808	Rod, 25 cm	2
C2942	A’ shaped base, small	2
SW092	Bosshead	5
C9809	Clamp block	3
SP640	Cu wire, 34 SWG	1
SG436	Constantan wire, 34 SWG	1
C9810	Pulley with 4mm plug	1
C9816	Pointer	1
C8228	Scale	1
C0510	Support clip	1
SW088	Double hooked mass 50g	24

Support Rod

SPECIFICATIONS

Cat No.	Material	Length	Diameter
C9807	Mild Steel	100cm	10mm
C9812	Mild Steel	50cm	10mm
C9808	Mild Steel	25cm	10mm

'A' Shaped Base SG101
- SPECIFICATIONS Mount : Support rod upto 8-14mm.
  Material : Cast iron
  Length : 200mm
Metal Wires
- SPECIFICATIONS
  
  Cat No. Material SWG
  
  SP640 Copper 34
  
  SG436 Constantan 34
Scale C8228
- SPECIFICATIONS Material : Acrylic
  Scale : 1 div=0.25mm
  Pointer : Aluminium, length=200mm
Double Hooked Mass SW088
- SPECIFICATIONS Material : Brass, Chrome Plated.
  Type : Fixed double hook.
  Capacity : 50g.
Bosshead SW092
- SPECIFICATIONS Object type : Square & round shape
  Object size : Up-to 13mm dia
  Material : Aluminium alloy
  Object can be held both vertically and horizontally.

ELASTIC AND PLASTIC DEFORMATION SK050

Mechanics Experiments

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