欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了配合《水工混凝土断裂试验规程》在工程界的推广使用，提出了双K断裂模型中在临界状态时分布在虚拟裂缝上的粘聚力σ（x）产生的粘聚韧度Kk的二元拉格朗日插值计算方法，进而由准脆性材料韧度三参数定律计算了混凝土起裂韧度K。与粘聚韧度KIc^c积分计算和简化计算方法的比较，表明此插值计算方法具有很高的精度，计算过程简化，使用计算器即可实现，便于工程人员实际使用。
英文摘要：
To extend the application of concrete fracture test norm in engineering, a bivariate Lagrangian interpolation function method for determining double-K fracture model cohesion toughness K, of which caused by the cohesive force σ（x） along the fictitious crack zone in the critical state, is proposed. Then the initiation toughness KIc^c can be easily evaluated using the three-parameter law of toughness in quasi- brittle materials. Compared with the values of cohesion toughness KIc^c calculated by the numerical inte- gration, this interpolation method is of high accuracy. Further, the calculation of K is simplified much more, all calculations can be performed with a pocket calculator and it is very convenient for practical engineers.
同期刊论文项目
同项目期刊论文
Seismic ductility of very-high-strength-concrete short columns subject to combined axial loading and
Theoretical analysis and experimental investigation on flexural performance of steel reinforced ultr
Experimental determination of fracture parameters for crack propagation in hardening cement paste an
Investigation on potential use of strain hardening ECC in permanent formwork with small scale flexur
期刊信息
位置：