| 钢筋宏电池腐蚀锈坑的二维模型及其断裂性能 |
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| 引用本文： | 彭修宁,韦树英,梁远忠. 钢筋宏电池腐蚀锈坑的二维模型及其断裂性能[J]. 广西大学学报(自然科学版), 2009, 34(1) |
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| 作者姓名： | 彭修宁 韦树英 梁远忠 |
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| 作者单位： | 广西电力工业勘察设计研究院博士后工作站,广西,南宁,530023;广西大学,土木建筑工程学院,广西,南宁,530004;广西大学,土木建筑工程学院,广西,南宁,530004;广西电力工业勘察设计研究院博士后工作站,广西,南宁,530023 |
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| 基金项目： | 中国博士后科学基金,广西大学科学基金 |
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| 摘 要： | 钢筋的疲劳断裂行为与其裂纹周边的局部性能密切相关,为了研究产生宏电池腐蚀后钢筋的疲劳断裂性能,本文在试验研究的基础上提出了钢筋产生局部锈蚀后纵向锈坑尺寸的二维模型;基于理论分析得到了用于表征钢筋局部锈坑处Ⅰ型裂纹端点区域应力应变场强度的应力强度因子表达式.
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| 关 键 词： | 宏电池腐蚀 二维模型 疲劳断裂 钢筋 |
Two-dimension model of macro battery corrosion pits of steel bar and its fracture performance |
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| PENG Xiu-ning,WEI Shu-ying,LIANG Yuan-zhong. Two-dimension model of macro battery corrosion pits of steel bar and its fracture performance[J]. Journal of Guangxi University(Natural Science Edition), 2009, 34(1) |
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| Authors: | PENG Xiu-ning WEI Shu-ying LIANG Yuan-zhong |
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| Affiliation: | 1.The Postdoctoral Work Station of Guangxi Electric Power Industry Investigation Design and Research Institute;Nanning 530023;China;2.College of Civil and Architectural Engineering;Guangxi University;Nanning 530004;China |
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| Abstract: | The fatigue fracture behavior has direct and close relationship with its local performance,to study fatigue fracture of steel bars with unsymmetrical corrosion pits,this paper has set up a two-dimension model to describe the shape of pits and the I pattern stress intensity factors calculating method of local corrosion pits under fatigue for the purpose loads has been determined by the theoretic analysis. |
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| Keywords: | macro-battery corrosion two-dimension model fatigue fracture steel bars |
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