摘要
大学材料性能实验教学通常以棒料单向拉伸为主要内容,而未能兼顾各种型材在服役状态下的几何属性对材料属性的影响。研究小直径薄壁管直接拉伸实验技术和方法,并将其引入实验教学,使学生通过实验自主地分析塞头装配、试样类型及加载速率对拉伸结果的影响,取得了良好的实践教学效果,对管形状态下材料力学性能的准确获取与促进管材塑性成形理论研究具有重要学术意义。
Without considering the effect of geometric properties of various profiles in the service on material properties, the main content of experimental teaching on material performance in the university is based on uni- axial tensile test of a bar. Tensile test techniques and methods of thin-walled tube with small diameter are ex- plored and brought into experimental teaching to make students analyze the effects of assembly for the plugs, sample shapes and loading rates on the tensile results more independently, which can lead to better teaching results. Meanwhile, it has an important significance to obtain the tube mechanical properties accurately as well as to promote tube plastic forming theory.
出处
《实验技术与管理》
CAS
北大核心
2012年第3期56-58,共3页
Experimental Technology and Management
