| 一种测试胶体与钢质基体间粘结剪切性能的新方法 |
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| 引用本文： | 全学友,刘连杰,王仁燕,马松,严勇. 一种测试胶体与钢质基体间粘结剪切性能的新方法[J]. 土木与环境工程学报, 2011, 33(3): 31-37 |
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| 作者姓名： | 全学友 刘连杰 王仁燕 马松 严勇 |
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| 作者单位： | 全学友,QUAN Xue-you(重庆大学土木工程学院,重庆400045;重庆大学山地城镇建设与新技术教育部重点实验室,重庆400045);刘连杰,王仁燕,LIU Lian-jie,WANG Ren-yan(重庆大学土木工程学院,重庆,400045);马松,MA Song(重庆市设计院,重庆,400015);严勇,YAN Yong(中国中铁八局集团第一工程有限公司,重庆,400050) |
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| 基金项目： | 重庆市建设科技计划项目，重庆市交委计划项目 |
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| 摘 要： | 中国现行国家标准试验方法中的单层金属片搭接接头拉伸剪切试件,由于粘结区剪应力分布极不均匀,并在粘结面上产生很高的拉应力,试验结果不能真实反映胶体与金属基体之间的粘结强度,只能作为胶体质量的检验指标,不能作为强度条件使用。该文采用的组合圆盘粘结试件用于胶层粘结剪切性能测试时,胶层及结合面剪应力分布很均匀,均匀系数可达0.97以上;胶层端部引入圆弧面并对钢质基体进行倒角处理后,粘结面正拉应力可以降低到20 MPa以下,不致引起受拉破坏,因此组合圆盘的测试结果能真实反映胶体与金属基体之间的粘结剪切强度或剪压复合强度,可作为粘结构件承载力设计的强度条件使用。
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| 关 键 词： | 胶体 钢质基体 粘结剪切性能 组合圆盘粘结试件 |
| 收稿时间： | 2010-10-11 |
A New Method for Measuring Bonding Shear Properties of Adhesives on Steel Substrates |
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| QUAN Xue-you,LIU Lian-jie,WANG Ren-yan,MA Song and YAN Yong. A New Method for Measuring Bonding Shear Properties of Adhesives on Steel Substrates[J]. Journal of Civil and Environmental Engineering, 2011, 33(3): 31-37 |
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| Authors: | QUAN Xue-you LIU Lian-jie WANG Ren-yan MA Song YAN Yong |
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| Affiliation: | QUAN Xue-you1a,b,LIU Lian-jie1a,WANG Ren-yan1a,MA Song2,YAN Yong3(1a.College of Civil Engineering,1b.Key Laboratory of New Technology for Construction of Cities in Mountain Area,Ministry of Education,Chongqing 400045,P.R.China,2.Chongqing Architectural Design Institute,Chongqing 400015,3.No.1 Engineering Company of China Railway No.8 Engineering Group Co.,Ltd,Chongqing 400050,P.R.China) |
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| Abstract: | Single-lap-joint adhesively bonded metal specimen which is the national standard experimental method in use has an extremely non-uniform distribution of shear stresses along the joint,and tensile stress concentration of high values is produced on the steel substrate interfaces.Therefore the test result,which is not the real bonding shear strength between adhesive and steel substrates,can only be used as a test index for qualities of adhesives not the strength criterion for load is capacity evaluation.The co... |
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| Keywords: | adhesive steel substrates bonding shear properties combined bonding disc specimen |
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