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| Experimental Study on Adhesive Joints With J299 Film Under Different Environments |
| LEI Anmin，DENG Fanchen，ZOU Peng |
| (AVIC Aircraft Strength Research Institute, Xi’an 710065, China) |
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Abstract The tensile shear experiments of two types of single-lap composite joints processed respectively by T700 and ZT7H fibers under three different environments are carried out to investigate the influence of different environments on shear strength of adhesive joints with J299 film. The experimental results proved that: The shear strengths of T700 and ZT7H adhesive joints in Elevated Temperature Wet (ETW) environment are respectively about 78% and 79% of that in Room Temperature Dry (RTD) environment, and the shear strengths in Cold Temperature Dry (CTD) environment are about 1.11 times and 1.04 times of that in RTD environment. Moreover, in RTD, CTD and ETW environments, the shear strength of ZT7H adhesive joints is 1.32 times, 1.23 times and 1.34 times of that of T700 adhesive joints.
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2020, 
