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玻璃纤维增强复合材料在湿热环境下的耐久性试验及性能衰减模型
doi: 10.13204/j.gyjz201410010
DURABILITY TEST AND ATTENUATION MODEL OF GFRP PERFORMANCE IN HOT AND HUMID ENVIRONMENT
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摘要: 对工程中常用的玻璃纤维增强复合材料(GFRP)进行湿热环境下的耐久性试验,根据25个试件在6 000 h中测试的拉伸强度、伸长率及弹性模量的结果,分析了性能变化规律和趋势,以此建立了抛物线-直线的性能衰减模型,并得到相关的模型参数。可以用于预测GFRP在湿热环境作用后的寿命,为耐久性设计方法的建立提供了基础资料。
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关键词:
- 湿热环境 /
- 玻璃纤维增强复合材料 /
- 衰减模型
Abstract: The durability tests were done for GFRP commonly used in engineering in hot and humid environ-ment． based on the test results of tensile strength，elongation and modulus of elasticity that 25 specimens were tested in 6 000 h，the variation and trends of behaviors were analyzed ，parabolic-linear attenuation model was built and model parameters were derived． Which could be used to predict the life of GFRP after hot and humid environment，which provided basic data for building durability design method．-
Key words:
- hot and humid environment /
- GFRP /
- attenuation model
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