Impact tester for composites and textiles

Product catalog summary

Product Overview: The document provides detailed information about the Rotational Impact Tester by Hegewald & Peschke Meß- und Prüftechnik GmbH, designed for dynamic tensile tests, particularly for fiber composites and technical textiles. It is capable of simulating material behavior at high strain rates, relevant for crash simulations in industries like automotive.

Application: The tester is used for highly dynamic tensile tests with a long linear test path, testing bonding points, and achieving strain rates up to 350 s^-1. It is particularly useful for crash simulations, simulating material behavior at speeds of 50 km/h (14 m/s).

Functionality: The tester uses a 300 kg rotating flywheel mass to store energy, which is then transferred to a linear slide with an integrated specimen holder. The test records force, displacement, and time, with data stored in a buffer memory and imported into LabMaster for evaluation.

Results: The tester provides strain rates, force-displacement diagrams, modulus of elasticity, tensile strength, and elongation at break. The area under the force-displacement diagram indicates the energy dissipated.

Specimen and Clamping: The tester can clamp fiber-plastic composites and technical textiles using a form-fitting connection. Standardized clamping devices are used for different specimen geometries.

Technical Data: The tester measures forces up to 80 kN with a resolution of 2.5 N and a measuring frequency of 400 kHz. It supports testing speeds from 1 to 14 m/s and requires specific electrical and pneumatic conditions.

Comparison with Similar Machines: The rotational impact tester offers high testing speed and impact energy in a compact size compared to pendulum impact testers, drop testers, and high-speed testing machines. It provides specific settings for high test speeds and forces but lacks a standardized procedure.

Operation and Data Transmission: The machine is operated via a touch panel, and data is transmitted to LabMaster for analysis, ensuring traceable measurement data backup.

Catalog excerpts

Impact tester for composites and textiles-1

Product information Rotational impact tester Hegewald & Peschke Meß- und Prüftechnik GmbH Am Gründchen 1, 01683 Nossen, Germany Telephone: +49 35242 445-0, Telefax: +49 35242 445-111 E-Mail: [email protected] http://www.Hegewald-Peschke.de

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Application:  Highly dynamic tensile tests with a long linear test path  Testing of fibre composites and technical textiles (optionally extendable with other rotation masses for other materials)  Testing of bonding points (e.g. seams, glued joints)  Realisation of strain rates up to 350 s-1 Material characteristics at such high strain rates are used for crash simulations, e.g. in lightweight construction or in the automotive industry. They simulate the material behaviour at 50 km/h (14 m/s). Functionality: In this rotational impact tester, a 300 kg rotating flywheel mass is decisive for the...

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Impact tester for composites and textiles-3

Specimen characteristics fibre composites (FRP):  Parallel length: 40 mm  Specimen thickness: max. 4 mm  Specimen geometry: flat specimen in accordance to DIN 50125 shape D Technical data: Force measurement Tensile load up to 80 kN Measuring range Resolution Measuring frequency Displacement measurement Measuring range Resolution Test speeds/ strain rates Testing speed Rotating mass Rotation energy Strain rate Connection conditions Electrical 400 V 3 P/N/PE 50 Hz 7.5 kVA, via 32A CEE plug on the machine, Leakage current ca. 40 mA, back-up fuse >/= 3B16 A If available, only all-current sensitive...

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Operation, data transmission, operation of the rotational impact tester: Comparison of testing machines with similar applications: In this test series, the rotational impact tester impresses with its high testing speed and high impact energy, at a comparatively small machine size. Impact energy Rotational impact tester up to 16,000 J Test energy is defined by flywheel mass and test speed Testing speed Test forces + Specific setting of relatively high test speeds + small space requirement + relatively high test forces + high energies despite small flywheel mass (300 kg) - no standardised procedure...

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