EXPERIMENTAL INVESTIGATION ON LOCALIZATION OF CONCRETE DEFORMATION WITH WHITE-LIGHT-SPECKLE METHOD

摘要：

With white-light speckle method, evolution process of damage process zone has been investigated for a set of concrete specimen under mixed-mode loading. Geometrical parameters of the damage process zone have been measured. Double-notched specimens and 4-point shear loading conditions were adopted. The parameters measured include the width and length of the strain localization band. As the size of the concrete specimen were set as 400×150×37.5 (mm3) with a notch of 5×25(mm2) at each side, the maximum length of the damage process zone is about 54 mm. And this geometrical data basically keeps constant during stable deformation process. These data have presented an experimental basis for the determination of value of internal length parameter for a gradient-enhanced nonlocal model.

作者: Xinpu Shen Lu Yang Jihang Liu

作者单位: College of Architectural Engineering, Shenyang University of Technology, Shenyang, 110023, China.

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）