学术报告

Multiscale Mechanical Analysis of Reinforced Concrete Structures with Multiple Spatial Scales

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题目:Multiscale Mechanical Analysis of Reinforced Concrete Structures with Multiple Spatial Scales
报告人:杨自豪 教授 (西北工业大学)
时间:2019年4月18日13:30-14:30
地点:宁静楼117室
摘要:The statistical multiscale method coupling with extended finite element method is presented to analyze the damage and fracture of FRP(fiber reinforced polymer) reinforced concrete structures. The FRP reinforced concrete material is composed of plain concrete and FRP reinforcement structure. Firstly, the statistical multiscale method is applied to predict the stiffness and strength parameters of plain concrete. In the FRP reinforced concrete material, the plain concrete is equivalent to homogeneous material through the homogenization process and stirrups and longitudinal reinforcement are enhancement phase. And then, the extended finite element method is introduced to analyze the four-point bending process of different FRP reinforced concrete material structure. The crack growth paths of the structures are compared with experimental results and the effectiveness of the statistical multiscale coupling method is verified.

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