本发明提供一种考虑纤维滑移的钢纤维混凝土弹塑性本构模型，其特征在于，所述模型为： Δ σ i j = D i j k l t o t Δ ϵ k l ]]>本发明运用复合材料混合理论，基于热力学耗散不等式，分别得到钢纤维和基体混凝土本构方程。基体混凝土为弹塑性本构模型，钢纤维为考虑纤维界面滑移的一维弹性本构模型。基体混凝土塑性采用Hsieh‑Ting‑Chen四参数屈服准则和Drucker‑Prager经典塑性流动法则，塑性硬化/软化准则采用修正的过镇海模型。考虑界面的钢纤维一维弹性本构模型参数由钢纤维拔出试验确定。混凝土弹塑性本构模型参数可通过单轴、真三轴压缩试验进行标定。该模型在细观尺度考虑钢纤维滑移机制，利用普通混凝土和钢纤维弹性本构结合构建钢纤维混凝土弹塑性本构模型，简单可行，对纤维混凝土基础理论研究具有重要促进意义。
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