![一种材料动态压痕实验方法](/CN/2012/1/73/images/201210366332.jpg)
基本信息:
- 专利标题: 一种材料动态压痕实验方法
- 专利标题(英):Method for testing dynamic indentation of material
- 申请号:CN201210366332.2 申请日:2012-09-28
- 公开(公告)号:CN102928309A 公开(公告)日:2013-02-13
- 发明人: 宋力 , 梁浩哲 , 秦焜 , 赵坤 , 任睿 , 杨黎明
- 申请人: 宁波大学
- 申请人地址: 浙江省宁波市江北区风华路818号
- 专利权人: 宁波大学
- 当前专利权人: 宁波大学
- 当前专利权人地址: 浙江省宁波市江北区风华路818号
- 代理机构: 宁波奥圣专利代理事务所
- 代理人: 蔡菡华
- 主分类号: G01N3/48
- IPC分类号: G01N3/48
The invention discloses a method for testing dynamic indentation of a material. The method is characterized by comprising the following steps of: fixedly arranging a tested piece on the end face of one end, which faces a transmission bar, of an incident bar, and fixedly arranging a tested piece on the end face of one end, which faces the incident bar, of the transmission bar; sticking a first strain gauge to the incident bar; sticking a second strain gauge to the transmission bar; electrically connecting the first strain gauge and the second strain gauge with an ultra-dynamic strain indicator respectively; striking the incident bar by using a striking bar to ensure that the two test pieces and a stress ball extrude one other to form indentations; and processing the indentations to obtain a time travel curve of press-in force and press-in displacement of the tested pieces. The method has the advantages that the dynamic mechanical performances of the material are measured by using an experimental method, the phenomenon of impedance mismatch of the connecting part of a pressure head and a pressure bar in the prior art is avoided, and the problem that part of the connecting part of the incident bar and the pressure bar generates plastic deformation during dynamic loading in the prior art is solved, so that the measurement accuracy of the method is high, and the maximum indenting velocity can be higher than 30 m/s.
公开/授权文献:
- CN102928309B 一种材料动态压痕实验方法 公开/授权日:2014-11-12
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01N | 借助于测定材料的化学或物理性质来测试或分析材料 |
------G01N3/00 | 用机械应力测试固体材料的强度特性 |
--------G01N3/30 | .用一次冲击力 |
----------G01N3/48 | ..用压头在冲击载荷下压印,例如使球下落 |