Fiber reinforced composite contains carbon, glass, ceramic, as well as polymer fibers like aramid (Kevlar), poly olefin fibers in woven fabric form or aligned non-woven fibers, infiltrated by a polymeric, ceramic or metallic matrix by several processes like vacuum infusion, pressure infiltration, autoclaving, thermoforming, etc. Some new developments include also some natural fibers like cotton, flax, hemp fibers. They may be structural or semi structural composites. Physical, chemical, and mechanical properties of composite materials as well as the constituent materials are important for designing and applying these class of materials.
Capability – At Touchstone Testing Laboratory, we routinely test composite materials for aerospace, automotive and other customers. We have capability to test mechanical, physical and chemical properties of composites as well as the constituent materials like resin, fibers, etc. Typical properties we test routinely are tensile, compressive, shear, flexure properties of composites. In addition, we test for wear, erosion, water resistance, humidity resistance, swelling, etc. We also test properties of constituents like flow time, gel time, volatiles contents of the resins, as well as structural properties of individual fliers, tows, woven fiber cloth, and prepregs.
Some relevant standards:
A laminate is a type of composite material, manufactured by assembling several layers of different materials, consolidating by the application of pressure, heat and adhesives in to semi-finished products like sheets or finished shapes. A simple example is a metal polymer laminate, which has a sheet metal adhesively bonded to a polymer films or sheets.… Continue Reading
Touchstone is committed to providing its customers with quality, reliable test results. That is why we have undertaken the rigorous steps needed to meet and secure the most stringent of test lab accreditations including ISO/IEC 17025, NADCAP 7101 (Materials Test Lab) and NADCAP 7122-I (Non-Metallics Materials Testing).