| 摘要: |
| 通过分析各种常的的材料破坏准则，建立了一种适合混凝土非线性特性的破坏准则，采用了非线性指标βt，βc区别对待材料的不同位，压状态，引用了Sargin的一维应力应变关系，结合以上3个方面提出了一个较为合理恰当的混凝土非线性本构模型，便于有限元的实施。 |
| 关键词: 混凝土强度准则 非线性指标 本构模型 |
| DOI： |
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| Discussion on nonlinear constructive model for concrete |
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| Abstract: |
| In this article,the present strenth failure criteria of materials are compared and analyzed,and an advisable criterion is raised;Two stress nonlinear level parameters βt,βt are used.defining the various stress state;Sargin formula is adapted to express the unaxial stress-strain relationship.Thus,a rational nonlinear constructive model is formed by combining the three aspects above.It would be convenient to practice the finite element method. |
| Key words: strength failure criterion of concrete stress level parameter constructive model |
