湿热老化后碳纤维复合材料层间剪切强度实验方法对比研究

通过短梁法和双切口法研究湿热老化对TV00/TDE-85复合材料层间剪切强度的影响,讨论两者吸湿规律随老化时间的变化关系,并对试件断口形貌进行分析.结果表明：两种试件吸湿规律均符合Flck第二定律,但两者平衡吸湿率和吸湿时间有所差别,双切口法试件的吸湿速率和平衡吸湿率均比短梁法试件高;双切口试件所测层间剪切强度受湿热老化影响比短梁明显,短梁试件每隔500h层间剪切强度保持率为74.5%,61.0%,53.2%,50.6%,双切口每隔500h层间剪切强度保持率为60.9%,38.3%,42.6%,33.0%;短梁试件失效模式随着湿热老化时间的增长变化比双切口更为复杂....

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Bibliographic Details
Published in航空材料学报 Vol. 37; no. 5; pp. 90 - 98
Main Author 双超 刘璐璐 赵振华 关玉璞 陈伟
Format Journal Article
LanguageChinese
Published 先进航空发动机协同创新中心,南京 210016 2017
南京航空航天大学 能源与动力学院 江苏省航空动力系统重点实验室,南京,210016%南京航空航天大学 能源与动力学院 江苏省航空动力系统重点实验室,南京 210016
Subjects
双切口法
复合材料
失效模式
层间剪切强度
湿热老化
短梁法
层间剪切强度
composites
湿热老化
失效模式
short-beam method
failure mode
复合材料
double-incision method
双切口法
interlaminar shear strength
短梁法
hygrothermal aging
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Summary:通过短梁法和双切口法研究湿热老化对TV00/TDE-85复合材料层间剪切强度的影响,讨论两者吸湿规律随老化时间的变化关系,并对试件断口形貌进行分析.结果表明：两种试件吸湿规律均符合Flck第二定律,但两者平衡吸湿率和吸湿时间有所差别,双切口法试件的吸湿速率和平衡吸湿率均比短梁法试件高;双切口试件所测层间剪切强度受湿热老化影响比短梁明显,短梁试件每隔500h层间剪切强度保持率为74.5%,61.0%,53.2%,50.6%,双切口每隔500h层间剪切强度保持率为60.9%,38.3%,42.6%,33.0%;短梁试件失效模式随着湿热老化时间的增长变化比双切口更为复杂.
Bibliography:SHUANG Chao1, LIU Lulu1, ZHAO Zhenhua1, GUAN Yupu1, CHEN Wei1,2（1. Nanjing University of Aeronautics and Astronautics, Jiangsu Province Key Laboratory of Aero-space Power System, Nanjing 210016, China; 2. Collaborative Innovation Center of Advanced Aero-engine, Nanjing 210016, China）
hygrothermal aging; composites; short-beam method; double-incision method; interlaminar shear strength; failure mode
The effects of hygrothermal aging on the interlaminar shear strength of T700 / TDE-85 composites were studied by shortbeam method and double-incision method. The relationship between moisture absorption and aging time was discussed, and the fracture surface morphology was analyzed. The experimental results show that the moisture absorption law of the two specimens is in accordance with Fickle,s second law, but the saturated moisture absorption rate and moisture absorption time are different. The moisture absorption rates and saturated moisture absorption rates of the specimens of double incision method are higher tha
ISSN:1005-5053
DOI:10.11868/j.issn.1005-5053.2017.000009