Stress and Strain Analysis on a Membrane SM-1435
Experiments – SM-1435 Stress and Strain Analysis on a Membrane
🔹 Measurement of Radial and Tangential Strain
Analyze strain distribution across the membrane using precision strain gauges mounted in radial and tangential directions.
🔹 Deflection Analysis of a Thin Membrane
Measure membrane deflection under varying compressive loads using an adjustable high-accuracy dial gauge.
🔹 Stress Calculation from Measured Strains
Determine radial stress and tangential stress by applying elasticity theory to experimentally obtained strain data.
🔹 Principal Stress Determination
Investigate the direction and magnitude of principal stresses developed within the membrane structure.
🔹 Mohr’s Strain Circle Application
Use experimental strain measurements to construct and analyze Mohr’s Strain Circle for determining principal strains.
🔹 Pressure vs. Deflection Relationship
Study how increasing hydraulic pressure affects membrane deformation and structural behavior.
🔹 Experimental Validation of Strength of Materials Theory
Compare theoretical calculations with real-world measurements to understand material response under load.
🔹 Comprehensive Stress & Strain Distribution Analysis
Evaluate the complete stress and strain field across a thin circular diaphragm using multiple strain gauge locations.
The SM-1435 provides hands-on experience in strain gauge technology, elasticity theory, stress analysis, structural mechanics, and experimental verification of engineering principles, making it an essential training system for Mechanical and Civil Engineering laboratories.
Features
- Investigation of stress, strain, and deflection in a thin membrane under compressive load
- Measurement of radial and tangential strain using strain gauges
- Determination of radial stress, tangential stress, and principal stress directions
- Application of Mohr’s Strain Circle for principal strain analysis
- Adjustable dial gauge for deflection measurements at different radial positions
- Hydraulic pressure generation with integrated pump and manometer
- Maintenance-free sealed hydraulic system
- Optional software support for data visualization and experimental evaluation
Technical Specifications
- Aluminum membrane diameter: 230 mm (200 mm effective test diameter)
- Membrane thickness: 3 mm
- 8 strain gauges, 350 Ω half-bridge configuration
- Gauge factor: 2.00 ±1%
- Power supply: 10 V
- Dial gauge range: 0–20 mm, resolution 0.01 mm
- Manometer range: 0–1 bar
- Maximum system pressure: 0.6 bar
The SM-1435 is an ideal laboratory solution for Strength of Materials, Structural Mechanics, Mechanical Engineering, and Experimental Stress Analysis courses, providing hands-on experience in modern strain measurement techniques and elasticity theory.
Stress and Strain Analysis on a Membrane (SM-1435)
The SM-1435 Stress and Strain Analysis on a Membrane is an advanced educational training system designed to demonstrate the practical principles of stress, strain, and deflection measurement in thin circular membranes. This apparatus enables students and researchers to investigate the behavior of a thin aluminum disk subjected to compressive hydraulic pressure while analyzing the resulting mechanical stresses and strains using strain gauge technology.
The system features a hermetically sealed, maintenance-free hydraulic unit with a hand-operated pump and manometer for generating controlled pressure loads. Eight high-precision strain gauges arranged as half-bridge circuits measure both radial and tangential strains, providing comprehensive insight into stress distribution across the membrane. An adjustable dial gauge allows accurate measurement of membrane deflection at any radius, enabling detailed comparison between theoretical and experimental results.
