Materials Stress Strain Wireless Physics Instrument for School, Colleges and Universities Purpose.

Stress-Strain Apparatus with Wireless Sensors

The Stress-Strain Apparatus is a laboratory testing system designed to investigate the relationship between tensile stress and strain in different materials. It stretches and, in some cases, breaks a test specimen while measuring the applied force and the resulting change in length. The collected data is used to generate a stress-strain curve, allowing students to determine Youngs Modulus, elastic region, plastic region, yield point and breaking point.

The apparatus enables the measurement and analysis of various mechanical properties, including Youngs Modulus, yield strength, tensile strength, ductility and toughness. Students can also compare stress-strain curves produced by different materials. Compatible software helps determine Youngs Modulus from 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 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 correction 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
• 1 Digital caliper

• Tensile stress and strain analysis
• Youngs Modulus determination
• Yield strength measurement
• Tensile strength testing
• Ductility analysis
• Toughness determination
• Elastic and plastic deformation studies
• Comparison of mechanical properties of different materials
• Material testing and engineering experiments

• Measures tensile stress and strain in different materials
• Determines Youngs Modulus
• Identifies elastic and plastic regions
• Determines yield strength and tensile strength
• Measures ductility and toughness
• Generates stress-strain curves
• Measures applied force using a wireless force sensor
• Measures changes in specimen length using a wireless rotary motion sensor
• Hand-operated tension adjustment mechanism
• Metal lever provides a 5:1 mechanical advantage
• Supports testing of plastic and metal specimens
• Wireless connectivity through USB or Bluetooth