| 冀晓东,宋玉普,刘建.混凝土冻融损伤本构模型研究[J].计算力学学报,2011,28(3):461~467 |
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| 混凝土冻融损伤本构模型研究 |
| Study on frost damage constitutive model of concrete |
| 投稿时间：2009-08-18 修订日期：2010-05-15 |
| DOI：10.7511/jslx201103026 |
| 中文关键词: 混凝土 冻融损伤 本构模型 破坏准则 |
| 英文关键词:concrete frost damage constitutive model failure model |
| 基金项目:国家自然科学基金(50679007)资助项目. |
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| 中文摘要: |
| 基于各向同性连续损伤力学理论,以损伤条件下的弹性模量和泊松比为变量,基于Ottosen理论模型建立了混凝土冻融损伤破坏准则,并以Ottosen本构理论模型为基础,利用建立的冻融损伤破坏准则构建了混凝土冻融损伤本构模型,并编制了本构模型有限元程序,经过试验验证模型计算结果较为准确,为有限元计算和冻融作用后混凝土结构模拟应用提供参考。 |
| 英文摘要: |
| Based on the damage mechanics and Ottosen failure model, a frost damage failure model is established in which elastic modulus and Possion ratio under damage are the damage variables. And based on Ottosen theory, a frost damage constitutive model is established and all these will be useful to the development of finite element programme. The test of the constitutive model by the experimental data shows that it is accurate comparatively. |
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