The GUNT Hertzian Pressure Experimental Unit demonstrates the contact area and pressure distribution between two convex bodies under load. Using a transparent plastic plate and a rubber pressure pad pressed together via a lever, the unit enables visualization of circular and elliptical contact areas caused by deformation. Force measurement with a spring balance and illumination by a halogen lamp facilitate precise analysis of contact forces and areas using grid lines on the plate.
Product Features
- When two bodies with a convex surface are pressed against each other, ideally, these bodies only come into contact linearly or at one or more points.
- In reality, an elliptical contact area occurs at the contact point due to deformation, with compressive stresses distributed proportionally.
- Heinrich Hertz developed a theory to calculate the largest pressure, known as Hertzian pressure, including contact area size, shape, and stress distribution.
- The experimental unit demonstrates the shape of the contact area under Hertzian pressure as an example.
- A rubber pressure pad is pressed against a transparent plastic plate via a lever; both are curved.
- Both circular and elliptical contact areas can be generated.
- Force at the lever is measured using a spring balance to determine the contact force.
- A halogen lamp illuminates the contact area for clear visibility.
- Grid lines on the plastic plate make it easier to measure the contact area.
Benefits
- Visualizes real-world deformation effects beyond idealized point contact.
- Enables hands-on understanding of Hertzian pressure theory.
- Accurate force and contact area measurement for educational experiments.
- Facilitates comprehension of stress distribution in engineering and physics.
Why Choose the GUNT Hertzian Pressure Experimental Unit?
This unit provides an accessible, practical demonstration of Hertzian pressure principles using clear visual feedback and precise force measurement. Perfect for teaching and research environments, it bridges theoretical concepts with real-world mechanics to enhance learning and experimentation in materials science, mechanical engineering, and physics.
