Loading Transfer in Structure of Aluminum Alloy Plate Bonded by CFRP

Journal of Aeronautical Materials

YU Zhouhui¹  ZHAO Peizhong¹  HU Fangyou¹ 

[1] Department of Aeronautical and Mechanical Engineering, Qingdao Branch, Naval Academy of Aeronautical Engineering, Qingdao 266041, Shandong, China;

关键词: CFRP sheet;    aluminum alloy;    tensile strain;    load transfer;   

DOI  :  10.11868/j.issn.1005-5053.2016.000128

来源: DOAJ

【 摘 要 】

Tensile tests of aluminum plate repaired with carbon fiber sheet were conducted, the effects of bonding length, layer number and bonding way on load transfer had been discussed, the failure process, failure characteristics, strain distribution and change law were also analyzed, Effects of CFRP reinforced intact specimens and damaged specimens were compared. Test results indicate that adopt double adhesive, the load of damaged specimen can be greatly increased while has no significant effect on intact sample. Increasing layer number can improve the bearing capacity of repaired specimen and reduce the strain gradient at the end and damaged region, also the stress concentration problem is eased. Although the improvement of bearing capacity is limited through increasing the length of carbon fiber sheet, the stress distribution of glue layer has been improved, the strain gradient at the end and damaged region are also reduced, so it is conducive to improve the whole performance of repaired component.

【 授权许可】

Unknown