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生态复合墙体在受荷过程中始终处于复杂应力状态,且使用的墙体内填材料具有多样性,使用单一的一种本构模型不能很好地反映其内填各种材料的受力情况,利用非线性有限元软件ABAQUS提供的二次开发功能,将适用于任何一种材料的统一强度理论本构模型编入ABAQUS中,完成了对生态复合墙结构体系的有限元数值分析。结果表明:在ABAQUS中增加统一强度理论本构模型,丰富了材料单元库,提高了计算精度和效率,而且,通过算例验证,说明该子程序不仅可以充分地利用该软件强大的非线性求解平台,而且还可以完成复杂的生态复合墙结构的有限元数值分析问题,对于实际工程,具有一定的准确性、经济性与适用性。
The ecological composite wall is always in a complex stress state during the loading process, and the used wall filling materials are diversified. The use of a single constitutive model can not well reflect the loading conditions of various materials . By using the secondary development function provided by the non-linear finite element software ABAQUS, the unified strength theory constitutive model applicable to any kind of material is compiled into the ABAQUS, and the finite element numerical analysis of the ecological composite wall structure system is completed. The results show that the constitutive model of uniform strength theory is added to ABAQUS, which enriches the material cell library and improves the calculation accuracy and efficiency. Moreover, the numerical example shows that this subroutine not only can make full use of the powerful non-linear solution of the software Platform, but also can finish the problem of complex numerical analysis of complex ecological composite wall structure, and has certain accuracy, economy and applicability for the actual project.