| 碳纤维水泥砂浆柱体轴压下力电性能尺寸效应研究 |
| |
| 引用本文： | 童谷生,吴秋兰.碳纤维水泥砂浆柱体轴压下力电性能尺寸效应研究[J].华东交通大学学报,2011(5):46-51. |
| |
| 作者姓名： | 童谷生 吴秋兰 |
| |
| 作者单位： | 华东交通大学土木建筑学院; |
| |
| 基金项目： | 江西省自然科学基金项目(2009GZC0019); 铁路环境振动与噪声教育部工程研究中心项目(10TM07) |
| |
| 摘 要： | 采用54个3种尺寸的几何相似碳纤维水泥砂浆试样,在给定电压下测试柱体电极间的电流；测试轴向应变下电阻率和柱体的极限荷栽,分析给定应力下试件的灵敏度系数,计算轴压下柱体的抗压强度.研究表明:碳纤维水泥砂浆棱柱体具有压敏特性,可以利用电阻变化率来监控构件的自损伤；碳纤维水泥砂浆棱柱体的电阻率随着试件尺寸的增大而减小,即试样...
|
| 关 键 词： | CFRM 力电效应 体积电阻率 强度 |
Size Effect of Electrical Properties of Carbon Fiber Reinforced Mortar Prism under Axial Pressure |
| |
| Tong Gusheng,Wu Qiulan.Size Effect of Electrical Properties of Carbon Fiber Reinforced Mortar Prism under Axial Pressure[J].Journal of East China Jiaotong University,2011(5):46-51. |
| |
| Authors: | Tong Gusheng Wu Qiulan |
| |
| Institution: | Tong Gusheng,Wu Qiulan(School of Civil Engineering andArchitecture,East China Jiaotong University,Nanchang 330013,China) |
| |
| Abstract: | The 54 geometrically similar carbon fiber reinforced mortar prism specimens are adopted and electri-cal current at given voltage,electrical volume resistivity under axial strain,extreme load are tested.The gauge factor(fractional change in resistance per unit strain)at a given stress is analyzed and the strength of mortar prism specimen is calculated.The experimental results show that carbon fiber reinforced mortars have compres-sion sensibility and the change rate of electrical volume resistivity can be us... |
| |
| Keywords: | CFRM(carbon fiber reinforced mortar) electrical volume resistivity electromechanical effect strength |
| 本文献已被 CNKI 维普 等数据库收录！ |
