CN111413220A - 一种湿热环境下材料动态断裂应力强度因子原位测量装置 - Google Patents
一种湿热环境下材料动态断裂应力强度因子原位测量装置 Download PDFInfo
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Abstract
本发明公开了一种湿热环境下材料动态断裂应力强度因子原位测量装置,包括湿热环境箱,湿热环境箱上安装有第一透明窗口和第二透明窗口,环境控制***与湿热环境箱相连,湿热环境箱与加载装置相连,加载控制***与加载装置相连,夹具连接在湿热环境箱中心,试样安装在夹具上,夹具与加载装置相连,湿热环境箱前方设有激光器、扩束镜和第一准直镜,湿热环境箱后方设有第二准直镜和高速相机,加载控制***、环境控制***和高速相机与计算机相连;本发明通过采集激光通过试样后的图像信息,基于光力学原理计算受力前后材料应力强度因子,进而能够实时监测材料在湿热环境下服役时裂纹萌生、扩展与失效等力学行为。
Description
技术领域
本发明涉及一种湿热环境下材料动态断裂应力强度因子原位测量装置,属于材料力学技术领域。
背景技术
现有关于材料的力学行为都是在常规环境下,或者是吸湿饱和后放置于温度箱内测量力学性能,缺少湿热环境下原位力学性能测量装置。特别是对于涉及能够原位测量湿热环境下材料动态断裂性能的实验装置未见报道。
然而,材料在动态载荷作用下裂纹萌生、扩展与失效的定量测试与表征对于材料力学设计、可靠性设计以及安全服役极为重要。
发明内容
本发明提供一种湿热环境下材料动态断裂应力强度因子原位测量装置用来克服现有技术中无法原位测量湿热环境下材料动态断裂的缺陷。
为了解决上述技术问题,本发明提供了如下的技术方案:
本发明公开了一种湿热环境下材料动态断裂应力强度因子原位测量装置,包括湿热环境箱,湿热环境箱上安装有第一透明窗口和第二透明窗口,环境控制***与湿热环境箱相连,控制环境条件,湿热环境箱与加载装置相连,加载控制***与加载装置相连,控制加载大小,夹具连接在湿热环境箱中心,试样安装在夹具上,夹具与加载装置相连,湿热环境箱前面设置有激光器、扩束镜和第一准直镜,湿热环境箱后面设置有第二准直镜和高速相机,加载控制***、环境控制***和高速相机与计算机相连。
进一步的,所述湿热环境箱上设有透明窗口。
进一步的,所述加载装置包括横梁、立柱、底座、滑轨、支撑、滑轮、钢索、释放机构、落锤和卷扬机。
进一步的,所述加载控制***与加载装置相连,控制加载量。
进一步的,所述环境控制***与湿热环境箱相连,控制环境的温度与湿度。
本发明所达到的有益效果是:本发明建立湿热环境下材料动态断裂应力强度因子原位测量,通过采集激光通过试样后的图像信息,基于光力学原理计算受力前后材料应力强度因子,进而能够实时监测材料在湿热环境下服役时裂纹萌生、扩展与失效等力学行为。
附图说明
附图用来提供对本发明的进一步理解,并且构成说明书的一部分,与本发明的实施例一起用于解释本发明,并不构成对本发明的限制。在附图中:
图1是本发明的整体结构示意图;
图2是本发明加载装置的结构示意图。
图中:1、激光器;2、扩束镜;3、第一准直镜;4、湿热环境箱;5、第一透明窗口;6、试样;7、夹具;8、加载装置;8-1、横梁;8-2、立柱;8-3、底座;8-4、滑轨;8-5、支撑;8-6、滑轮;8-7、钢索;8-8、释放机构;8-9、落锤;8-10、卷扬机;9、加载控制***;10、第二透明窗口;11、第二准直镜;12、环境控制***;13、高速相机;14、计算机。
具体实施方式
以下结合附图对本发明的优选实施例进行说明,应当理解,此处所描述的优选实施例仅用于说明和解释本发明,并不用于限定本发明。
实施例1
如图1-2所示,一种湿热环境下材料动态断裂应力强度因子原位测量装置,包括湿热环境箱4,湿热环境箱4上安装有第一透明窗口5和第二透明窗口10,环境控制***12与湿热环境箱4相连,控制环境条件,湿热环境箱4与加载装置8相连,加载控制***9与加载装置8相连,控制加载大小,夹具7连接在湿热环境箱4中心,试样6安装在夹具7上,夹具7与加载装置8相连,湿热环境箱4前面设置有激光器1、扩束镜2和第一准直镜3,湿热环境箱4后面设置有第二准直镜11和高速相机13,加载控制***9、环境控制***12和高速相机13与计算机14相连。
加载装置8包括横梁8-1,横梁8-1和底座8-3通过立柱8-2相连接,立柱8-2内侧设置有滑轨8-4,外侧设置有支撑8-5,横梁8-1上设置有滑轮8-6,钢索8-7通过滑轮8-6与释放机构8-8和卷扬机8-10相连,释放机构8-8与落锤8-9相连,卷扬机8-10通过滑轮8-6和钢索8-7将连接有落锤8-9的释放机构8-8提升到设定高度,通过释放机构8-8释放落锤8-9,落锤8-9沿滑轨8-4下落,对放置于底座8-3上的试样进行加载。
工作原理:首先原位测量装置通过加载控制***9和环境控制***12调整好加载量和环境温度、湿度后,激光器1发出激光,通过扩束镜2将激光点光源扩束为激光面光源,激光通过第一准直镜3后为平行光,平行光通过带透明窗口的湿热环境箱4的第一透明窗口5到达试样6,通过试样6后的激光穿过带透明窗口的湿热环境箱4的第二透明窗口10到达第二准直镜11,通过第二准直镜11后的激光被高速相机13接收。基于光力学原理,通过高速相机13接收到的光学图像几何尺寸可以通过计算机14计算得到材料断裂应力强度因子。
原位测量装置加载之前通过高速相机接收光学图像,加载之后同样通过高速相机13接收变形后的光学图像,然后利用计算机计算加载前后光学图像尺寸差别得到应力强度因子大小。本装置能实时监测材料在湿热环境下服役时动态裂纹萌生、扩展与失效等力学行为。
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (4)
1.一种湿热环境下材料动态断裂应力强度因子原位测量装置,其特征在于,包括湿热环境箱,湿热环境箱上安装有第一透明窗口和第二透明窗口,环境控制***与湿热环境箱相连,湿热环境箱与加载装置相连,加载控制***与加载装置相连,夹具连接在湿热环境箱中心,试样安装在夹具上,夹具与加载装置相连,湿热环境箱前面设置有激光器、扩束镜和第一准直镜,湿热环境箱后面设置有第二准直镜和高速相机,加载控制***、环境控制***和高速相机与计算机相连;
加载装置包括横梁,横梁和底座通过立柱相连接,立柱内侧设置有滑轨,外侧设置有支撑,横梁上设置有滑轮,钢索通过滑轮与释放机构和卷扬机相连,释放机构与落锤相连,卷扬机通过滑轮和钢索将连接有落锤的释放机构提升到设定高度,通过释放机构释放落锤,落锤沿滑轨下落,对放置于底座上的试样进行加载。
2.根据权利要求1所述的湿热环境下材料动态断裂应力强度因子原位测量装置,其特征在于,所述湿热环境箱上设有透明窗口。
3.根据权利要求1所述的湿热环境下材料动态断裂应力强度因子原位测量装置,其特征在于,所述加载控制***与加载装置相连,控制加载量。
4.根据权利要求1所述的湿热环境下材料动态断裂应力强度因子原位测量装置,其特征在于,所述环境控制***与湿热环境箱相连,控制环境的温度与湿度。
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CN112051261A (zh) * | 2020-08-28 | 2020-12-08 | 中国航发北京航空材料研究院 | 一种高温环境下Ti2AlNb材料动态断裂测量装置 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1114746A (zh) * | 1994-12-01 | 1996-01-10 | 天津大学 | 智能干涉云纹仪 |
CN1435683A (zh) * | 2002-01-29 | 2003-08-13 | 罗至善 | 微机调控激光干涉仪 |
CN101435811A (zh) * | 2008-12-04 | 2009-05-20 | 上海大学 | 湿、热、力多场耦合下的老化测试方法及装置 |
CN102980813A (zh) * | 2012-11-30 | 2013-03-20 | 清华大学 | 一种测量高温下材料泊松比的实验装置及方法 |
CN103439199A (zh) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | 一种腐蚀环境下的疲劳裂纹扩展试验测试*** |
CN103454165A (zh) * | 2013-08-19 | 2013-12-18 | 北京航空航天大学 | 一种高/低温环境下的疲劳裂纹扩展试验测试*** |
CN206540782U (zh) * | 2017-03-03 | 2017-10-03 | 刘昭阳 | 一种简易落锤加载实验装置 |
CN109932395A (zh) * | 2017-12-15 | 2019-06-25 | 中国矿业大学(北京) | 一种动态断裂力学实验的电测-焦散线实验***及方法 |
CN110823713A (zh) * | 2019-11-07 | 2020-02-21 | 湘潭大学 | 一种材料高温力学性能的三点弯曲检测装置 |
-
2020
- 2020-05-06 CN CN202010370645.XA patent/CN111413220A/zh active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1114746A (zh) * | 1994-12-01 | 1996-01-10 | 天津大学 | 智能干涉云纹仪 |
CN1435683A (zh) * | 2002-01-29 | 2003-08-13 | 罗至善 | 微机调控激光干涉仪 |
CN101435811A (zh) * | 2008-12-04 | 2009-05-20 | 上海大学 | 湿、热、力多场耦合下的老化测试方法及装置 |
CN102980813A (zh) * | 2012-11-30 | 2013-03-20 | 清华大学 | 一种测量高温下材料泊松比的实验装置及方法 |
CN103439199A (zh) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | 一种腐蚀环境下的疲劳裂纹扩展试验测试*** |
CN103454165A (zh) * | 2013-08-19 | 2013-12-18 | 北京航空航天大学 | 一种高/低温环境下的疲劳裂纹扩展试验测试*** |
CN206540782U (zh) * | 2017-03-03 | 2017-10-03 | 刘昭阳 | 一种简易落锤加载实验装置 |
CN109932395A (zh) * | 2017-12-15 | 2019-06-25 | 中国矿业大学(北京) | 一种动态断裂力学实验的电测-焦散线实验***及方法 |
CN110823713A (zh) * | 2019-11-07 | 2020-02-21 | 湘潭大学 | 一种材料高温力学性能的三点弯曲检测装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112051261A (zh) * | 2020-08-28 | 2020-12-08 | 中国航发北京航空材料研究院 | 一种高温环境下Ti2AlNb材料动态断裂测量装置 |
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