CAJ | 학술논문

纤维增强复合材料具有轻质、高强、耐腐蚀等优点，广泛应用于工程结构加固中。针对双向纤维增强复合材料的特点设计单轴拉伸试验装置，对双向纤维增强复合材料进行拉伸试验，研究破坏特征、抗拉强度、弹性模量及伸长率等，分析双向纤维增强复合材料力学性能的影响因素。试验表明，纤维原丝的抗拉强度不可直接作为编织纤维增强复合材料抗拉强度的设计值用于加固设计，其破坏表现出明显的脆性断裂，而且纤维材料的种类、纤维材料的制作工艺对纤维增强复合材料的力学性能具有一定的影响。
섬유증강복합재료구유경질、고강、내부식등우점，엄범응용우공정결구가고중。침대쌍향섬유증강복합재료적특점설계단축랍신시험장치，대쌍향섬유증강복합재료진행랍신시험，연구파배특정、항랍강도、탄성모량급신장솔등，분석쌍향섬유증강복합재료역학성능적영향인소。시험표명，섬유원사적항랍강도불가직접작위편직섬유증강복합재료항랍강도적설계치용우가고설계，기파배표현출명현적취성단렬，이차섬유재료적충류、섬유재료적제작공예대섬유증강복합재료적역학성능구유일정적영향。
Fiber reinforced polymer ( FRP ) composite materials have been widely employed in engineering structure retrofit, due to their advantages, which include high strength-to-weigh ratio, high erosion-resist-ance, and etc.In this paper, a uniaxial tension test device for two -way FRP composite materials was de-signed, and then the uniaxial tensile tests of two-way FRP composite materials were finished.The failure char-acteristics, tensile strength, elasticity modulus, and elongation rate were tested and the influence factors of the two-way FRP composite material mechanics property were also analyzed.The test results showed that the ten-sile strength of fiber raw could not be directly used as the design value of the tensile strength of FRP composite material in structure strengthening design.The failure of tensile strength was brittle fracture.The types of textile fibers and the production technology of the FRP composite materials affect the mechanics properties of the FRP composite material.