Fracture test and numerical analysis of E50 solder notched bars at low temperature

摘要：

Fracture tests at low temperature (-47°C~-43°C) were performed on 20 notched bars fabricated from ?50 solder. The effect of notch radius, r, and notch depth, d/D, on fracture mode of solder was studied. The experimental results demonstrate that the notched bars fracture at the notched section at low temperature. The fracture mode is cleavage fracture and the fracture sections are coarse. Specimens with a sharper notch radius (a smaller r) and a larger notch depth (a smaller d/D ratio) show poor ductility. The 3-D fracture stress field at the notch section of the tested specimens, which was computed from finite element analysis using an elliptical yield model, proves the accuracy of the proposed elliptical fracture model.

关键词： solder notched bars low temperature fracture test yield model fracture model

作者: Wanzhen Wang Wufeng Liu Xuchang Hao Xintang Wang

作者单位: Faculty of Architectural, Civil Engineering and Environment, Ningbo University, Ningbo City, P. R. C School of Civil Engineering, Lanzhou University of Technology, Lanzhou City, P. R. China

会议类型: 国际会议

会议名称: The Third International Conference on Modelling and Simulation(第三届国际建模、计算、仿真、优化及其应用学术会议 ICMS 2010)

会议地点: 无锡

会议语种:英文

页码: 237-240

在线出版日期: 2010-06-04（万方平台首次上网日期，不代表论文的发表时间）