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Unique Configuration Enables Standard Compression Tests on Composite Materials
MALVERN, Pa. — August 02, 2016 — Micro-Measurements®, a Vishay Precision Group, Inc. (VPG) brand, today announced the release of three CEA-Series strain gages designed to perform standard compression tests on polymer matrix composite materials. The new sensor patterns feature a unique configuration that is ideal for any strain measurement requiring close proximity to one-sided features, such as weld joints, structural discontinuities or stress risers like holes and cracks.
“Structural designers have told us that finding the compression strength of composite materials is necessary and is the subject of ASTM Standard Test Method D6641,” said Bob Watson, director of engineering, Micro-Measurements®. “The loading device recommended for use in this standard provides a 12.7 mm (0.5 in.) test section length, and a test section width range of 12.7 – 30 mm (0.5 – 1.2 in.), making our new UB pattern geometry ideal for this testing.”
The 062UB, 125UB and 250UB patterns are designed with both solder tabs placed on one side of the linear sensing grid, which allows these foil strain sensors to be properly oriented on the composite specimen, keeping the sensing grid centered in the test zone.
Available in 350 ohm to minimize self-heating, the UB patterns are made in the popular CEA-Series construction, which features a thin, flexible, cast polyimide carrier backing and encapsulation, and rugged, copper-coated solder tabs that provides quick and simple soldering. The UB patterns are also available with optional pre-attached lead wires, eliminating the chance of heat damage to the test specimen during soldering.
Vishay Precision Group, Inc. is an internationally recognized designer, manufacturer and marketer of: components based on its resistive foil technology; sensors; and sensor-based systems specializing in the growing markets of stress, force, weight, pressure, and current measurements. VPG is a market leader of foil technology products, providing ongoing technology innovations in precision foil resistors and foil strain gages, which are the foundation of the company’s force sensors products and its weighing and control systems. The product portfolio consists of a variety of well-established brand names recognized for precision and quality in the marketplace. To learn more, visit VPG at www.vpgsensors.com
, a Vishay Precision Group, Inc. (VPG) brand, is dedicated to the development, manufacture, and marketing of resistive-foil sensors for high-precision strain measurement. Micro-Measurements®
offers a full complement of strain gages, PhotoStress®
equipment and coatings, data acquisition systems, and supplies necessary to obtain accurate, reliable stress data. Our products are used throughout the industrialized world — both in the practice of stress measurements analysis and as the sensing elements in a wide variety of transducers for measuring physical variables (weight, force, torque, pressure, etc.). More information about Micro-Measurements is available at www.micro-measurements.com
Micro-Measurements and PhotoStress are registered trademarks of VPG.