| Q235厚钢板开孔板和缺口板断裂试验 |
| |
| 引用本文： | 王万祯,刘五峰,苏仁权,纪海涛,史艳莉.Q235厚钢板开孔板和缺口板断裂试验[J].建筑科学,2010,26(3). |
| |
| 作者姓名： | 王万祯 刘五峰 苏仁权 纪海涛 史艳莉 |
| |
| 作者单位： | 1. 兰州理工大学,土木工程学院,兰州,730050;宁波大学,建筑工程与环境学院,浙江,宁波,315211
2. 兰州理工大学,土木工程学院,兰州,730050 |
| |
| 基金项目： | 国家自然科学基金(50808098) |
| |
| 摘 要： | 对10个中心开椭圆孔和10个单侧半椭圆缺口25mm厚板进行了断裂试验,研究了开孔和缺口尖锐度对厚钢板断裂模式的影响。试验结果显示:试件的初始宏观裂纹形成于缺口顶端厚度中面,裂纹在厚度方向贯通后沿垂直加载方向迅速扩展,直至断裂。开孔或缺口愈尖锐的试件,其开裂延性愈差。断口粗糙呈暗灰色且有韧窝,断裂形式为正断与剪断混合型。本次试验为研究结构钢厚板断裂机理及抗断设防提供了较可靠的试验数据。
|
| 关 键 词： | 结构钢 缺口板 开孔板 初始裂纹 断裂机理 |
Fracture Tests of Thick Plates with Hole and Notched Plates Fabricated from Q235 |
| |
| WANG Wan-zhen,LIU Wu-feng,SU Ren-quan,JI Hai-tao,SHI Yan-li.Fracture Tests of Thick Plates with Hole and Notched Plates Fabricated from Q235[J].Building Science,2010,26(3). |
| |
| Authors: | WANG Wan-zhen LIU Wu-feng SU Ren-quan JI Hai-tao SHI Yan-li |
| |
| Affiliation: | 1.School of Civil Engineering/a>;Lanzhou University of Technology/a>;Lanzhou 730050/a>;China/a>;2.Faculty of Architectural/a>;Civil Engineering and Environment/a>;Ningbo University/a>;Ningbo 315211/a>;Zhejiang/a>;China |
| |
| Abstract: | Fracture tests were performed on 10 thick plates with elliptical hole and 10 thick notched plates.The effect of notch sharp on fracture ductility of structtural steel was studied.Experimental results indicated that the first macro crack initiated in the thickness of notch edge.The crack spread vertically towards the direction of loading until complete fracture.The fracture ductility is lower for the specimens with the sharper notch.Fracture mode is combination of shear and normal fracture and fracture secti... |
| |
| Keywords: | structural steel notched plates plate with hole initial crack rupture mechanism |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
