Module I: Introduction to Mechanics of Solids Lab [2 hours]
Brief explanation, procedure to be followed for all the experiments to be conducted in the laboratory
Module II: Tension Test [2 hours]
To study elastic and non-elastic properties of ductile material like mild steel and observe the nature of failure.
Module III: Charpy Impact Test [2 hours]
To study the impact strength of materials (brass, aluminum and mild steel) on a Charpy Impact Testing machine.
Module IV: Torsion Test [2 hours]
To study the linearly elastic behavior of mild steel under torsion and to determine its shear modulus and study of nature of fracture.
Module V: Beam deflection Test [2 hours]
To determine the Young’s modulus of elasticity of materials (mild steel, brass and aluminum) indirectly by using beam deflection equation.
Module VI: Close coiled helical spring test [2 hours]
To determine the value of the rigidity modulus of the material of the spring indirectly using spring deflection equation.
Module VII: Buckling of columns Test [2 hours]
To determine Euler’s buckling load for long columns and compare the results with the Euler theory
Module VIII: Fatigue Test [2 hours]
To test mild steel specimen in fatigue, plot S-N curve and obtain the endurance limit.
Module IX: Brinnell Hardness Test [2 hours]
To determine the Brinell’s hardness number of mild steel and brass specimens
Module X: Rockwell Hardness Test [2 hours]
To determine the Rockwell’s Hardness number of mild steel and hardened steel specimens.

To find Elastic modulus by applying a uniform rate of tension load on a mild steel (ductile) specimen till its failure. Study the stress strain curve and find the yield stress, ultimate stress and breaking stress of the test specimen. To study the failure pattern of the specimen and observe its ductility behaviour from percentage elongation and percentage reduction in cross-sectional area.

To find and compare the impact strength of the different materials. To study the nature of fracture and their behaviour under impact load.

To study the behavior of mild steel under torsion and to determine the relationship between torsional load and angle of twist for the full range of strains till failure. To study the cause of failure when subjected to pure shear for different type of materials.

To verify the experimental Euler buckling load with theoretical buckling load of a slender column for different end conditions.

After the completion of this course, students will be able to:
CO1. Find the Young’s modulus of elasticity of ductile metals like steel and can study different elastic/non-elastic properties like: proportional limit, yield point stress, ultimate stress, breaking stress, necking, ductility (from percentage elongation and percentage reduction in area)
CO2. Experimentally finding shear modulus from direct torsion test or indirectly from closed coiled helical spring test. Study the stress-strain diagram in shear and the failure pattern of the specimen subject to twisting moment.
CO3. Experimentally finding buckling load of columns of different sizes and boundary conditions.
CO4. Obtaining endurance limit of mild steel specimen from S-N curve.
CO5. Find hardness number of different metals used in structural member and its suitability for the purpose of use.

D. McLean, Mechanical Properties of Metals, Wiley

Amit Bhaduri, Mechanical Properties and Working of Metals and Alloys, Springer