为生态复合墙体的填充材料分析与应用提供理论依据和研究基础,结合当前国内外生态复合墙体材料的研究趋势,对三种新型生态复合墙体填充材料进行单轴抗压性能试验研究,基于统一强度理论和相关流动法则,采用材料各向同性强化法则,推导出基于统一强度理论的本构模型的硬化函数显式表达式,并利用单轴加载试验数据求得硬化函数与硬化参数之间的微分关系,推导出材料增量弹塑性刚度矩阵的表达式。结果表明:通过硬化函数显式表达式建立的材料单向弹塑性应力-应变关系能够较好的反映材料的本构模型;为统一强度理论准则的材料硬化参数增量弹塑性刚度矩阵表达式的计算机编程提供一种思路。
For filling material analysis and the application of the ecological composite wall to provide theoretical basis and research basis, in combination with the current domestic and foreign research trend of the ecological composite wall material, the three kinds of new ecological composite wall filling materials, experimental study on uniaxial compressive performance based on unified strength theory and associated flow rule, the isotropic materials to strengthen the law, the constitutive model based on unified strength theory is deduced the hardening fimction of explicit expression, and use the hardening function under uniaxial loading test data obtained with the differential relation between the hardening parameter,material incremental elastoplastic stiffness matrix is deduced expressions.The results show that the explicit expression of hardening fimction is used in establishing material of one-way elastic-plastic stress-strain relationship can better reflect the material constitutive model.For the material hardening parameter of unified strength theory standards.