强冲击载荷下钢筋混凝土的本构关系、破坏机理与数值方法

发布时间：2018-05-13 02:28

本文选题：钢筋混凝土 + 强冲击载荷　；参考：《中国科学:技术科学》2016年04期

【摘要】：钢筋混凝土不但在土木工程领域有着广泛的应用,而且其强动载荷下动态力学行为的研究在国家安全方面也具有十分重要的需求,其非均质、各向异性、多组分的特性亦给其动力学特性的研究带来诸多困难.本文针对强冲击载荷下钢筋混凝土的力学行为的研究进展进行了评述,具体包括:1)钢筋混凝土材料动态力学行为、破坏机理及动态本构模型;2)钢筋混凝土结构的侵彻及爆炸作用破坏机理;3)强冲击载荷下结构力学行为的数值模拟方法与软件.在此基础上,分析了针对强冲击载荷下钢筋混凝土的动态特性、侵彻机理和数值方法等方面的研究所存在的不足之处,并对需要进一步深入开展的研究工作进行了展望.
[Abstract]:Reinforced concrete is not only widely used in the field of civil engineering, but also has a very important demand in the field of national security for the study of dynamic mechanical behavior under strong dynamic load, and its heterogeneity and anisotropy are also very important. The characteristics of multicomponent also bring many difficulties to the study of its kinetic characteristics. In this paper, the research progress on the mechanical behavior of reinforced concrete under strong impact loading is reviewed, including the dynamic mechanical behavior of reinforced concrete materials. Failure Mechanism and dynamic Constitutive Model No.2) numerical simulation method and software of structural mechanical behavior under strong impact load are presented. On this basis, the shortcomings of the research on the dynamic characteristics, penetration mechanism and numerical method of reinforced concrete under strong impact load are analyzed, and the further research work that needs to be carried out is prospected.
【作者单位】：北京理工大学爆炸科学与技术国家重点实验室;宁波大学冲击与安全工程教育部重点实验室;太原理工大学应用力学与生物医学工程研究所材料强度与结构冲击山西省重点实验室;
【基金】：国家自然科学基金重大项目(批准号:11390360)资助
【分类号】：TU375

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