# Structural Mechanics

## Structural Mechanics Lab Experiments

Experiment # 1 To Perform Tension Test on

• Hot Rolled Deformed Steel Bar.
• Cold Twisted Deformed Steel Bar
• Cast Iron Specimen

Purpose
The purpose of this experiment is to study the stress strain behaviour of the material, To check the adequacy of specimens according to the standards )

Experiment # 2 To Perform Tension Test on

• Mild Steel Specimen
• Cast Iron Specimen

Purpose
1. To study the shear stress ~ shear strain behaviour of the material.
2. To study the failure pattern of these materials in torsion.
3. To determine the mechanical properties. e.g, Modulus of elasticity, Modulus of rigisity,
Shear strength, shear strain and ductility in torsion.

Experiment # 3 To Study the Elastic Stress Strain Behaviour In Bending Using Electrical Resistance Strain Gauges.

Purpose
To study the use of strain gauges for measuring the strain in bending

Experiment # 4 Determination of Principal Strain and Stress Using Strain Rosette Technique.

Purpose
1. To determine the principal stress σ min/max.
2. To determine the principal strain ε 1,2

Experiment # 5 To study the bending of a Z-Section.

Purpose
The purpose of this experiment is to confirm the theory that “loading a beam along the principle axis always produces symmetrical bending”.

Experiment # 6 To Determine The Shear Centre Of A Channel Section.

Purpose
The purpose of this experiment is to confirm the location of the theoretically determined shear centre.

Experiment # 7 To Determine The Elastic Critical Load Of Modal Columns with Different End Conditions.

Purpose
The purpose of this experiment is “to make comparison of experimental and theoretical elastic critical load for columns with different end conditions”.

Experiment # 8 To Determine Elastic Critical Load and Initial Imperfection Of A Pin Ended Real Column Using South Well Plot Technique.

Purpose
The purpose of this experiment is
a. To determine initial imperfection of a column just by load deformation observations.