炸药模拟裂纹宽度的CT检测与测量分析  

CT testing and measurement analysis of prefabricating crack width of explosive specimens

作　　者：王慧[1] 戴斌[1] 陈华[1] 宫志桢[1] 吴松[1] 刘晨[1] 张才鑫 WANG Hui;DAI Bin;CHEN Hua;GONG Zhizhen;WU Song;LIU Chen;ZHANG Caixin(Institute of Chemical Materials,China Academy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院化工材料研究所,绵阳621900

出　　处：《无损检测》2024年第7期19-24,共6页Nondestructive Testing

基　　金：国家自然科学基金青年基金(12105267)。

摘　　要：炸药作为武器系统的核心部件,其内部结构质量直接关系到武器系统的可靠性,目前CT技术已被用于炸药试件的内部质量检测与评价研究,特别用于炸药试件内部裂纹的定性与定量分析中。然而选择不同的检测工艺参数会造成CT图像质量的变化,直接影响到后续定量表征的精度。通过在炸药试件表面加工不同宽度的标准尺寸线槽,再将其与相同规格的炸药试件对粘,以实现在炸药试件内部预制标准尺寸裂纹的目的。然后,改变检测参数与工艺条件,得到不同检测参数对试件裂纹宽度测量精度的影响规律,分析讨论了CT测量炸药试件(如尺寸小于10 mm的始发药等)裂纹宽度的最佳检测工艺条件。As the core component of weapon systems,the internal structural quality of explosives is directly related to the reliability of weapon systems.Currently,CT technology has been used for the internal quality detection and evaluation of explosives,especially for the qualitative and quantitative analysis of internal cracks in explosives.However,the selection of different testing parameters can cause changes in the quality of CT images,directly affecting the accuracy of subsequent quantitative characterization.This paper achieved the goal of prefabricating standard size cracks inside explosive specimens by processing standard size grooves of different widths on the surface of explosive specimens and sticking them to explosive specimens of the same specifications.By changing the testing parameters and process conditions,the influence of different detection parameters on measurement accuracy was obtained,and the optimal testing parameters for CT measurement of crack width in explosive specimens(such as initiating explosives with a size less than 10 mm)were analyzed and discussed.

关 键 词：CT技术 预制裂纹 尺寸测量 炸药 

分 类 号：TG115.28[金属学及工艺—物理冶金]