混凝土是一种应用广泛的结构工程材料,其材料组份复杂、变化因素多,因而力学特性也复杂多变.动态/强冲击载荷作用下,还涉及了材料应变率敏感效应和静水压力相关特性等诸多影响因素,使得其本构理论的研究更加困难、本文中,回顾了近20多年来混凝土材料动态力学特性和本构关系研究方面的进展状况,主要总结了混凝土材料动态本构特性研究中的经验公式、强度理论和本构模型,并在分析比较的基础上给出了相应的讨论和评述.
Concrete is a geo-material used widely in engineering, and its composition is very complex. Therefore, the mechanical behavior of concrete under dynamic and impact loading is also complicated, and influenced by factors including strain rate-sensitivity and hydrostatic pressure-dependence of materials. In this paper, the developments of dynamic constitutive behavior of concrete in recent twenty years are reviewed, focusing on the empirical formula, strength theory and constitutive models.