Test Background
fiber reinforced plastic extrusion test can measure the bolt connection extrusion strength of carbon fiber, glass fiber, aramid fiber and other reinforced plastic laminates under static load at room temperature.
Zhongke Testing Reliability Experiment Center has the capability of reliability testing of various fiber-reinforced plastics and provides professional extrusion testing services for fiber-reinforced plastics.
Scope of tests
Commonly used fiber-reinforced plastics include polypropylene (PP), polyethylene (PE), polyester (PET) and other high-molecular polymers and high-purity natural wood, as well as some man-made fibers (cellulose fibers), glass-reinforced resins and metal fibers.
It can be divided into three categories according to its molding methods: thermoplastic resin, thermosetting resin, and polycarbonate.
Test method
1. When clamping a tensile specimen, the longitudinal center axis of the specimen should coincide with the clamping center line of the chuck. The compression loading device requires the specimen to be centered so that the central axis of the specimen is aligned with the center of the upper and lower platens. Use a torque wrench to apply a tightening torque of 1.96 N·m, or determine the tightening torque value according to the requirements of the design department.
2. The test point of the displacement sensor should be aligned with the center of the end face of the sample.
3. Preload the initial load (about 5% of the failure load).
4. Check and adjust the sample and displacement measurement system to keep the entire system in normal working condition.
5. Load at the specified speed, draw the load-hole deformation curve, and indicate the failure mode of the sample.
Test standard:
GB/T 7559-2005 Fiber reinforced plastic laminates - Test method for extrusion strength of bolted connections
GB/T 1446-2005 General principles for performance test methods of fiber reinforced plastics
