哈尔滨工程大学学报2016，Vol.37Issue(8)：1130-1135,6.DOI:10.11990/jheu.201505029
层合板螺栓连接结构性能影响因素与测试夹具
Influence factors and testing fixture of bolted-joint composite laminate structure
摘要
Abstract
To improve the reliability and carrying capacity of the bolted⁃joint composite laminate structure, we devel⁃oped a macro⁃micro multi⁃scale numerical model that combines the improved general unit cell model ( GMC model) , based on ABAQUS and its user subroutines. We used this model to analyze the factors influencing the bearing strength of the bolted⁃joint composite laminate structure with respect to its mesoscopic composition material. The model results show that the failure mode of the quasi⁃isotropic bolted⁃joint composite laminate structure is extrusion failure and its crushing strength is high. In addition, the crushing strength of the bolted⁃joint composite laminate structure increases with increases in the width⁃to⁃diameter ratio ( W/D ) in bolted⁃joint structures that have the same edge⁃to⁃diameter ( E/D ) ratio. When the bolt pre⁃tightening force is 4.2 N·m, the bearing strength of the bolted⁃joint structure reaches a stable value. The bearing strength of the bolted⁃joint structure is improved by a proper interference fit. In addition, the thickness of the testing fixture should not be less than 3 mm and the diameter of the convex plate located inside the testing fixture should be two times the diameter of the hole in the composite laminate.关键词
GMC模型/宏-细观多尺度/ABAQUS/用户子程序/失效模式/复合材料层合板/螺栓连接结构Key words
GMC model/macro-micro multi-scale analysis/ABAQUS/user subroutine/failure mode/composite laminate/bolted joint structure分类
通用工业技术引用本文复制引用
刘长喜,周振功,王晓宏,张博明,唐占文..层合板螺栓连接结构性能影响因素与测试夹具[J].哈尔滨工程大学学报,2016,37(8):1130-1135,6.基金项目
国家重点基础研究发展计划（11272105）． （）
