工程爆破

2001, (02) 1-4+49

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含初始损伤的水泥砂浆材料的动态本构关系研究
RESEARCH TO DYNAMIC CONSTITUTIVE RELATION OF CEMENT MORTAR WITH INITIAL DAMAGE

崔新壮,金青,李卫民,陈士海
CUI Xin zhuang 1, JIN Qing 2, LI Wei min 3, CHEN Shi hai 2 (1 Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China; 2 Shandong University of Science and Technology, Tai'an, Shandong 271019, China; 3 Shandong Constr

摘要(Abstract):

建立了含初始损伤的水泥砂浆试件的两种动态损伤演化模型及本构模型 ,然后通过霍普金森压杆对水泥砂浆试件进行了冲击压缩试验。结果表明 ,正交异性损伤演化模型更适合描述实际介质的损伤 ,从而建立了水泥砂浆材料的正交异性动态本构方程。
In this paper, two kinds of dynamic damage model, evolution model and constitutive model, for a cement mortar with initial damage are set up firstly and then the impacting experiments to the sample of cement mortar are done through the Hopkinson bars The experimental results have shown that the damage evolution model for the orthogonal isomerism is more suitable to describe the damage of actual medium Accordingly, the dynamic constitutive equation of orthogonal isomerism for the cement mortar is established

关键词(KeyWords): 水泥砂浆;初始损伤;霍普金森压杆;动态本构方程
Cement mortar; Initial damage; SHPB; Dynamic constitutive equation

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作者(Author): 崔新壮,金青,李卫民,陈士海
CUI Xin zhuang 1, JIN Qing 2, LI Wei min 3, CHEN Shi hai 2 (1 Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China; 2 Shandong University of Science and Technology, Tai'an, Shandong 271019, China; 3 Shandong Constr

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