混凝土在复杂应力状态下的应力—应变关系

非线性材料在复杂应力状态下的应力—应变关系很复杂。笔者在文献1]中提出了混凝土破坏面的数学模式,本文在此模式的基础上,进一步探讨了混凝土的应力—应变关系,计算结果与9组实验数据相比较,吻合程度较好。

Stress-Strain Relationship of Concrete under Multiaxial Stresses

On the basis of the mathematic model of the failure surface of concrete proposed in Ref(1) for tackling the complicated relationship between stress and strain of nonlinear materials under multiaxial stresses,the stress-strain relationship of concrete 5 is further explored.The calculated results turn out to be in good conformity with nine sets of experimental data.