Three-Point Bending Fatigue Tests of Carbon Fiber Reinforced Plastic Using the SEM Servopulser

User Benefits

- The SEM Servopulser can perform three-point bending fatigue tests of carbon fiber reinforced plastic. - The SEM Servopulser can also be used to observe fatigue cracks. - High-accuracy dynamic control can be achieved with the Servo Controller 4830.

Introduction

Carbon fiber reinforced plastic (CFRP) has high specific strength and stiffness and is widely used in various industrial fields, including transport vehicles. In order to ascertain its long-term reliability and durability as a structural material, it is necessary to evaluate it for fatigue, one of the main causes of structural failure. However, since CFRP is composed of two types of materials, carbon fibers and matrix resin, it exhibits complex behaviors in failure, such as matrix cracking, inter-layer delamination, and fiber rupture. This article describes bending fatigue tests that used the Servopulser EHF-L tabletop dynamic and fatigue testing system. The extension of cracks during the fatigue tests was observed using the SEM Servopulser, a high-temperature fatigue testing machine with a scanning electron microscope.

3 de diciembre de 2024 GMT