Metal

Rebar (reinforcing bar), usually made from ridged carbon steel, is a construction product mechanically anchored in reinforced concrete and masonry structures to improve tension. Rebar testing is a basic tensile test, where an escalating tensile load is applied to a rebar specimen until it yields or breaks, revealing important data about the specimen’s strength.

Our complete solutions for rebar tensile testing include:

• Highly stiff, floor-standing servo hydraulic load frames for a range of force requirements
• Intuitive, versatile and user-friendly software with powerful test design capabilities
• Digital controllers with high channel density, high capacity and superior configurability
• Hydraulic grips with special inserts for rebar specimens
• Comprehensive selection of accessories including grips, extensometers, and furnaces

The Charpy impact test is a destructive method and standardized high strain rate test which determines the amount of energy absorbed by a material during fracture. Absorbed energy is a measure of the material’s notch toughness.

With pendulum energies from 150 to 450 Joules, this metal impact test system is designed to comply with ASTM and ISO standards. Equipped with powered pendulum retrieval, precision bearings, machine enclosure with interlock and several other safety features. Optional auto specimen feeder and integrated cooling chamber increase productivity and minimize operator error.

Many metal pipes or vessels have rubber or other linings on the inside diameter for transport or mixing of certain fluids. There is a common requirement to be able to inspect the bonding between the metal and liner.

By using a transducer that can penetrate the rubber through the bondline, the amplitude of the interface can be measured with a flaw gate. Good bonding will attenuate the signal. A disbond will return a higher amplitude echo since the sound cannot now penetrate the rubber.

Initial tests with a 5MHz tranducer showed that we did not penetrate the rubber since a known disbond was not resolved. Therefore a lower frequency 2.25MHz was used with a composite construction to give better penetration and an improved signal to noise ratio. A dual-element was also required because of the curvature of the pipe; a single element was too sensitive to rocking of the transducer.

Ultra-stiff, four-column servo hydraulic load frames, dynamically rated to deliver loads ranging from 1 to 30 MN. Higher capacity load frames and unique features can be custom engineered to order.

Applications:

• Bend
• Compression
• Dynamic Testing
• Fatigue
• Fatigue and Fracture
• Tension
• Stiffness and Strength Measurement