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Structural Mechanics Laboratory

Located in Building 1, this lab features a 1000 kN Universal Testing Machine for strength testing steel and polymers. It includes advanced data acquisition tools for analyzing structural component behavior.

Room: 107 Floor: 1, Building: 1, BUBT Main Campus

Capacity: 35 Students

Computerized & Analogue Universal Testing Machine (UTM), Calibration Load Cell (3000 kN & 25 kN), Rockwell Hardness Testing Machine, Impact Testing Machine, Column Buckling Test Apparatus, Beam Bending Test Apparatus, Johnsons Shear Tool

About This Facility

Structural Mechanics Laboratory

Department of Civil Engineering

The Structural Mechanics Laboratory is one of the core undergraduate laboratories of the Department of Civil Engineering, dedicated to the experimental study of the mechanical behavior of engineering materials and structural elements. The laboratory is equipped with both computerized and analog Universal Testing Machines along with a range of specialized apparatus for tension, compression, shear, hardness, impact, and buckling tests. It provides students with the opportunity to directly observe and measure the strength, stiffness, ductility, and failure characteristics of materials commonly used in civil engineering construction, reinforcing the theoretical concepts covered in courses such as Mechanics of Solids, Strength of Materials, and Structural Analysis.

Objectives

Familiarize students with standard experimental procedures used to evaluate the mechanical properties of structural and construction materials.
Provide hands-on experience in operating Universal Testing Machines, hardness testers, and impact testing equipment.
Enable students to determine key mechanical properties such as tensile strength, compressive strength, shear strength, hardness, and impact toughness.
Develop a practical understanding of structural phenomena such as column buckling and beam bending.
Bridge the gap between classroom theory and real-world engineering practice through guided laboratory investigation.
Train students in accurate data recording, result analysis, and technical report writing.

Major Experiments

Tension Test on Mild Steel Rods and Reinforcement Bars
Compression Test on Structural Materials
Direct Shear Test using Johnson's Shear Tool Apparatus
Rockwell Hardness Test on Metallic Specimens
Charpy Impact Test on Simple Beam Specimens
Izod Impact Test on Cantilever Beam Specimens
Column Buckling Test on Slender Columns
Beam Bending (Flexural) Test
Calibration of Load Cells (3000 kN and 25 kN Capacity)

Major Equipment & Inventory

Sl. No.	Equipment / Item Name	Quantity	Short Description
1	Computerized Universal Testing Machine (UTM)	1 Set	Used to determine the tensile, compressive, and flexural properties of engineering materials with computerized data acquisition.
2	Analog Universal Testing Machine (UTM)	1 Set	Performs tensile, compression, and bending tests using an analog load measurement system for material strength evaluation.
3	Calibration Load Cell (3000 kN)	1 Set	High-capacity load measuring device with display used for calibrating testing machines and verifying large applied loads.
4	Calibration Load Cell (25 kN)	1 Set	Precision load cell used for calibrating low-capacity testing equipment and ensuring measurement accuracy.
5	Rockwell Hardness Testing Machine	1 Set	Measures the hardness of metallic materials based on the Rockwell indentation method.
6	Impact Testing Machine	1 Set	Determines the impact toughness and energy absorption capacity of materials using Charpy and Izod impact tests.
7	Column Buckling Test Apparatus	1 Set	Demonstrates the buckling behavior and critical load of slender columns under axial compression.
8	Helical Spring Test Setup	2 Pcs	Used to determine the stiffness (spring constant) and load–deflection characteristics of helical springs.
9	Johnson's Shear Tool Apparatus	1 Set	Used to determine the shear strength of engineering materials through direct shear testing.
10	Extensometer	1 Set	Measures small deformations and strain in specimens during tensile and compression tests with high accuracy.
11	Compressometer	1 Set	Measures compressive strain and deformation of specimens subjected to axial compression.
12	Beam Bending Test Apparatus	1 Set	Evaluates the bending behavior, deflection, and flexural strength of beam specimens under different loading conditions.

Learning Outcomes

Apply standard testing methods to determine the mechanical properties of common engineering materials.
Operate Universal Testing Machines and associated instruments safely and accurately.
Analyze experimental data, plot stress–strain relationships, and interpret hardness and impact test results.
Compare experimental findings with theoretical predictions and identify sources of error.
Understand the practical significance of structural mechanics principles in the design and safety assessment of civil engineering structures.
Prepare clear and well-organized laboratory reports based on experimental observations.