摘要
通过分析各种常用的材料强度破坏准则，建议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拉、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。
In this article,the present strength failure criteria of materials are compared and analyzed, and an advisable criterion is raised3 Two stress nonlinear level parameters βt, βc 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.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2001年第3期111-114,共4页
Journal of Northwest A&F University(Natural Science Edition)
