Strength materials Laboratory
The Strength of Materials Laboratory focuses on the experimental evaluation of the mechanical behavior of engineering materials under various loading conditions. The laboratory supports academic research and industry‑oriented studies through tests related to tensile, compressive, flexural, and impact properties. The following equipment are available in this laboratory.
Forces in a Simple Truss
Forces in a Simple Truss
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Basic Roof Truss | FL111 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Measurement of forces in truss members
- Calculation of member forces using the method of joints
- Comparison of measured results, analytical calculations, and graphical methods
Parabolic Arch
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Parabolic Arch Apparatus | SE110.16 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Mechanical principles of the parabolic arch
- Difference between statically determinate and indeterminate arches
- Measurement of arch deformation under load
- Measurement of support reactions in statically indeterminate arches under load
- Calculation of support reactions
- Effect of point load and distributed load on support forces and arch deformation
Forces in a Suspension Bridge
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Forces on a Suspension Bridge | SE110.18 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Familiarization with a suspension bridge:
• Under dead load
• Under additional load
• Under uniformly distributed load
• Under asymmetrically distributed point loads - Calculation of the main cable force
- Comparison of calculated and measured values of the main cable force
- Investigation of the effect of internal members under asymmetric loading
- Distribution of forces between bridge supports and the main cable
Forces in a Statically Indeterminate Truss
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Forces in an Overdeterminate Truss | SE 110.22 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Measurement of member forces in a statically determinate and statically indeterminate planar truss
- Force distribution in a planar truss using an additional member
- Dependence of member forces on external load:
• Magnitude, direction, and point of application - Comparison of measured results with analytical methods:
• Method of joints
• Method of sections - Basic principles of force measurement using deflection gauges
Beam on Two Supports: Shear Force and Bending Moment Diagrams
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Shearing Force and Bending Moment Apparatus | WP 960 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Calculation of support reactions based on static equilibrium conditions
- Application of the method of sections to compute internal forces and bending moments:
• Under a single point load
• Under multiple point loads - Calculation of the shear force diagram
- Calculation of the bending moment diagram
- Comparison of calculated and measured values of shear force and bending moment
Torsion of Shafts
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Torsion of Bars | SE 110.29 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Torsion of a shaft
- Shear modulus and polar moment of inertia
- Twist angle dependency on clamped length
- Twist angle dependency on applied torque
- Effect of stiffness on torsion:
• Solid circular shaft
• Hollow circular tube
• Slotted tube
• Square tube - Calculation of twist angle
- Comparison of calculated and measured twist angles
Hooke's Law
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Apparatus for Investigating Hooks Law | TM 400 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Investigation of the proportionality between applied force and spring extension
- Determination of the spring constant
- Connecting two tension springs in series
- Examination of the effect of spring constant on the frequency of a mass-spring system
Buckling Behavior of Columns
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Buckling Test Device | WP 120 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Investigation of buckling behavior under the influence of:
• Different support conditions
• Various rod lengths
• Different materials - Verification of Euler’s theory: buckling of elastic rods
- Determination of the modulus of elasticity of an unknown material (GRP)
- Measurement of force and displacement
- Calculation of predicted buckling force using Euler’s formula
- Graphical evaluation of force and displacement
Experimental Demonstration of Euler Buckling
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Euler Strut Theory Demonstration Unit | WP 121 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Experimental demonstration of various buckling cases:
• Euler Case 1 – Cantilevered rod (one end fixed, one end free)
• Euler Case 2 – Rod with both ends pinned
• Euler Case 3 – Rod with one end fixed, one end pinned
• Euler Case 4 – Rod with both ends fixed - Understanding the relationship between buckling length, buckling force, and different support conditions
Deformation of Straight Rods
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Deflection of Beam | WP 950 | Gunt-Germany | Sound |
Educational Objectives of the Experiments:
- Investigation of deformation in statically determinate and indeterminate straight beams:
• Cantilever beam
• Single-span, two-span, and three-span beams
• Determination of the differential equation of the elastic line - Deformation of a cantilever beam:
• Measurement of deflection at the point of load application - Deformation of a two-span beam on three supports:
• Measurement of support reactions
• Measurement of deflections - Influence of material (modulus of elasticity) and cross-sectional geometry on the elastic line
- Maxwell-Betti theorem and coefficients
- Application of the principle of virtual work in statically determinate and indeterminate beams
Hardness Testing – Rockwell Method
| Equipment Specifications | Model | Manufacturer Company and Country | Device Status |
|---|---|---|---|
| Hardness Tester | AT 200 DR | ernst-Germany | Sound |
Educational Objectives of the Experiments:
- Hardness testing of metals using the Rockwell method based on scales A, B, C, D, E, F, G, H, K, N, and T.
