Shearing Force & Bending Moment Apparatus SM-1405
Features
- High-quality educational apparatus for beam analysis experiments
- Designed for Strength of Materials and Structural Engineering laboratories
- Direct measurement of shear force and bending moment
- Beam supported on two bearing supports
- Low-friction hinge with two degrees of freedom
- Precise force gauges for accurate experimental results
- Adjustable beam alignment system
- Durable and rigid construction for long service life
- Suitable for undergraduate and diploma engineering education
- Enables comparison between theoretical and practical values
- Easy-to-operate laboratory setup
- Ideal for demonstration and student experiments
Educational Objectives
The SM-1405 apparatus enables students to understand and perform:
- Calculation of reactions using static equilibrium conditions
- Analysis of shear force and bending moment in beams
- Application of the method of sections
- Determination of internal forces in structural members
- Investigation of beam behavior under point loads
- Study of beam response under multiple point loads
- Preparation of shear force diagrams (SFD)
- Preparation of bending moment diagrams (BMD)
- Comparison of calculated and measured values
- Experimental verification of structural analysis theory
Experiments Performed
The apparatus supports a wide range of practical experiments, including:
- Determination of support reactions in a simply supported beam
- Measurement of shear force at a selected beam section
- Measurement of bending moment at a selected beam section
- Verification of equilibrium equations
- Construction of shear force diagrams
- Construction of bending moment diagrams
- Beam analysis under single point loading
- Beam analysis under multiple point loading
- Comparison between theoretical and experimental results
- Study of internal beam stresses caused by external loading
Technical Specifications
Beam Details
- Total Beam Length: 1000 mm
- Span Length: 800 mm
- Beam mounted on two supports
- Hinge position at one-third span
Measuring Ranges
- Shear Force Range: 0 – 50 N
- Bending Moment Range: 0 – 10000 Nmm
- Bending moment measurement through force gauge and lever arm
- Lever Arm Length: 100 mm
Measurement Accessories
- Steel Rule Length: 1000 mm
- Graduation: 1 mm
- Adjustable nuts for precise beam alignment
Weight Set Included
- 3 × 0.5 N hangers
- 9 × 5 N weights
- 6 × 2 N weights
- 3 × 1 N weights
- Maximum load per hanger: 20 N
Advantages of the Apparatus
The SM-1405 offers exceptional educational value by combining theoretical concepts with practical experimentation. Students can visualize internal beam forces that are normally impossible to observe directly. The apparatus improves analytical skills, enhances understanding of structural behavior, and develops confidence in engineering calculations.
Its robust design, precision measurement system, and user-friendly operation make it suitable for continuous laboratory use in academic environments. The apparatus also helps instructors effectively demonstrate core structural engineering concepts in an interactive and practical manner.
Shearing Force & Bending Moment Apparatus SM-1405
The Shearing Force & Bending Moment Apparatus (SM-1405) is a highly advanced and educational laboratory system designed for the detailed study of beam reactions, shear force, and bending moment behavior in structural and strength of materials engineering experiments. This apparatus provides students and researchers with a practical understanding of how internal forces develop within beams under different loading conditions, making it an essential training solution for universities, polytechnic institutes, technical colleges, and engineering laboratories.
The system demonstrates the fundamental principles of Strength of Materials and Structural Mechanics by allowing users to investigate the relationship between externally applied loads and the resulting internal shear forces and bending moments. Through accurate experimental measurements and comparison with theoretical calculations, students gain hands-on experience in static equilibrium analysis and structural behavior.
The apparatus consists of a precisely manufactured beam supported on two bearings with a specially designed low-friction hinge positioned at one-third of the span. This hinge includes two degrees of freedom and enables direct measurement of the internal shear force and bending moment generated at the section. The setup incorporates sensitive force gauges that provide accurate readings of internal reactions inside the beam when subjected to point loads and multiple loading arrangements.
One force gauge directly measures the shear force, while another force gauge connected to a fixed lever arm measures the bending moment. The apparatus also includes adjustable nuts for precise horizontal alignment of the beam, ensuring reliable and repeatable experimental results. A built-in steel rule allows accurate positioning of loads across the beam span.
The experimental setup is specifically designed to help students understand that, in many structural applications, bending moment has a more significant influence on design compared to shear force. This practical learning system bridges the gap between classroom theory and real engineering applications.
