Stress-Strain with Wireless Sensors Physics Instrument for School, Colleges and Universities Purpose.

Stress-Strain Apparatus with Wireless Sensors

The Stress-Strain Apparatus is a compact material testing system designed to demonstrate the relationship between tensile stress and strain throughout the stretching and breaking process. It provides an affordable, scaled-down alternative to conventional engineering testing machines, allowing students to explore important mechanical properties through practical experiments.

The apparatus displays the complete stress-strain curve, enabling the measurement and analysis of Young’s Modulus, yield strength, tensile strength, ductility and toughness. Students can also compare the stress-strain characteristics of different materials. Compatible software helps determine Young’s Modulus by measuring the slope of the initial elastic region and calculate toughness by integrating the area under the curve.

Designed and manufactured by Atico Export to meet the practical requirements of modern material testing laboratories and engineering education facilities.

Working Principle :

Tension is applied to the test specimen by manually turning the operating knob until the specimen stretches or breaks. The applied force is measured using a wireless force sensor connected through USB or Bluetooth. A metal lever provides a 5:1 mechanical advantage, increasing the maximum measurable force to 250 N.

Stress is calculated by dividing the applied force by the original cross-sectional area of the specimen. No adjustment is made for changes in cross-sectional area during stretching.

The change in specimen length is measured using a rotary motion sensor with a resolution of 0.007 mm. Strain is calculated by dividing the change in length by the original specimen length.

What's Included :

• 1 × Stress-Strain Apparatus without sensors
• 1 × Wireless force and acceleration sensor
• 1 × Wireless rotary motion sensor
• 1 × Plastic test specimen set
• 1 × Metal test specimen set

• Tensile stress and strain analysis
• Young’s Modulus determination
• Yield strength measurement
• Tensile strength testing
• Ductility analysis
• Toughness determination
• Elastic and plastic deformation studies
• Comparison of mechanical properties of different materials
• Engineering material testing experiments

• Compact and affordable material testing design
• Demonstrates the complete stress-strain curve
• Measures tensile stress and strain
• Determines Young’s Modulus
• Identifies elastic and plastic regions
• Measures yield strength and tensile strength
• Determines ductility and toughness
• Manual tension adjustment mechanism
• Metal lever provides a 5:1 mechanical advantage
• Maximum measurable force of 250 N
• Wireless force measurement through USB or Bluetooth
• Wireless measurement of specimen length changes
• Suitable for testing different material specimens