| 含预制缺陷PBX炸药裂纹扩展过程的试验研究 |
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| 引用本文： | 陈科全,蓝林钢,路中华,聂少云,胡榕希. 含预制缺陷PBX炸药裂纹扩展过程的试验研究[J]. 四川兵工学报, 2017, 0(1). DOI: 10.11809/scbgxb2017.01.031 |
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| 作者姓名： | 陈科全 蓝林钢 路中华 聂少云 胡榕希 |
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| 作者单位： | 1. 中国工程物理研究院化工材料研究所,四川绵阳621900;中国工程物理研究院安全弹药研发中心,四川绵阳621900;2. 中国工程物理研究院化工材料研究所,四川绵阳,621900 |
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| 基金项目： | 国家自然科学基金(11372293),中物院化材所青年人才培养基金(QNRC-201312) |
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| 摘 要： | 以典型HMX基PBX炸药为研究对象,采用圆弧巴西试验和数字散斑方法,通过预制缺陷的方式研究了不同缺陷条件下炸药裂纹的扩展过程.研究表明,不同缺陷下炸药裂纹扩展过程的差异较大,当缺陷位于加载轴向时,主裂纹完整贯穿试样中心,而当缺陷与加载方向存在夹角时,主裂纹从缺陷两端附近向加载面扩展,且不再通过试样中心.
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| 关 键 词： | 高聚物粘结炸药 巴西试验 数字散斑方法 预制缺陷 裂纹扩展 |
Experimental Study on the Crack Growth of Polymer Bonded Explosives with Prefabricated Defects |
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| CHEN Ke-quan,LAN Lin-gang,LU Zhong-hua,NIE Shao-yun,HU Rong-xi. Experimental Study on the Crack Growth of Polymer Bonded Explosives with Prefabricated Defects[J]. , 2017, 0(1). DOI: 10.11809/scbgxb2017.01.031 |
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| Authors: | CHEN Ke-quan LAN Lin-gang LU Zhong-hua NIE Shao-yun HU Rong-xi |
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| Abstract: | The crack growth of polymer bonded explosives with different prefabricated defects were studied by improved arc Brazilian test and digital speckle correlation method,using HMX based PBX explosive as the object,and the whole strain field and displacement vector plot were obtained.Research shows that the explosive crack propagation process under different defects are quite different,and when the defect is located in axial loading,the main crack complete throughout the center of the specimen,and when the defect is at loading direction when there is an angle between the crack defects,from near the ends to the loading surface,and the main crack is no longer pass the specimen center. |
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| Keywords: | polymer bonded explosive Brazilian test digital speckle correlation method prefabricated defects crack growth |
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