摘要
运用双因素方差分析法对试验数据进行分析,选取能够敏感反映玻璃纤维(GF)增强复合材料在老化过程中性能变化的指标——弯曲强度作为预测寿命的性能指标。提出了环境综合因子的概念,并利用实验室人工加速老化试验数据分析确定环境综合因子中各因素(温度、湿度、光照强度)的比例系数。基于二元统计分析方法,建立GF增强复合材料在老化过程中弯曲强度与老化时间、环境综合因子之间的二元一次方程,通过计算可得方程的形式为y=684.13-4.071t-0.025w,利用F检验法对回归方程和回归系数的显著性进行检验,检验结果表明,在α=0.01水平下,方程的回归效果和回归系数均为显著。利用6个地区3 a试样的试验数据对方程进行验证,结果预测值和实测值很好地吻合,说明用此回归方程预测GF增强复合材料的寿命在一定条件下是可靠的。
By using two-factors variance analysis method, the data of expermentation was analysed. In order to ascertain the sensitive reflect the performance of GFRC in the aging process, The bending strength was chosen to peredict life of GFRC as the performance index. The concept of integrated environmental ingredient was put forward and the laboratory artificial accelerated aging test was applied to determine factors in the integrated environmental ingredient（ temperature, humidity, light energy）. Based on the binary regression analysis, the relation between the GFRC bending strength in the aging process and the aging time and the integrated environ- mental ingredient was obtained, the equation was y = 684. 13 -4.071 t -0. 025w. The availability of the regression equation and regres- sion coefficients were approved by using the method of F. The result of equation and coefficients were good availability in the level of 99% （ a = 0. 01 ）, Finally, the equation was validated by appling the test date of six different area（ Wanning, Mohe, Xishuangbanna, LHasa, Xiamen, Jinan） with aging 3 years time, the results for the predicted date values tallies with test date values, this showed that the results predicted by using the equation were credible for the life of GFRC in certain condition.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2011年第1期68-73,共6页
Engineering Plastics Application
基金
国防环境试验与观测重点项目(H092006A004)
