市政技术2025，Vol.43Issue(5)：86-94,9.DOI:10.19922/j.1009-7767.2025.05.086
大应变纤维增强复合材料复合板的动态拉伸性能与本构模型参数的标定
Dynamic Tensile Behavior of LRS FRP Composite Panels and Calibration of the Constitutive Model Parameters
摘要
Abstract
To investigate the dynamic tensile properties of Large Rupture Strain Fiber Reinforced Polymers(LRS FRP)composite panels,static and dynamic tensile mechanical property tests were carried out to obtain the static and dynamic tensile stress-strain relationships under different strain rates;Based on the static test,the constitutive model parameters of the LRS FRP composite plates were calibrated,and a prediction model for the dynamic consti-tutive model was established.The results indicate that both static and dynamic tensile of LRS FRP composite plates manifest as failure of layer separation.The relationship between dynamic tensile stress-strain exhibits a size effect dependent on the thickness of the composite plate,as well as a significant strain rate effect,namely the dynamic enhancement factors for turning point stress,E1,and E2 increase with strain rate elevation,while the turning point strain decreases;The proposed FEM-empirical correction model can effectively simulate the mechanical response of LRS FRP composite plates under various tensile strain rates.关键词
LRS FRP复合板/静态拉伸试验/动态拉伸试验/本构模型/参数标定Key words
Large Rupture Strain Fiber Reinforced Polymers(LRS FRP)composite panel/static tensile test/dynamic tensile test/constitutive model/parameter calibration引用本文复制引用
杨晨,宋彦臣,彭光达,温佳年..大应变纤维增强复合材料复合板的动态拉伸性能与本构模型参数的标定[J].市政技术,2025,43(5):86-94,9.基金项目
国家重点研发计划青年科学家项目(2022YFB2602500) （2022YFB2602500）
北京市政路桥股份有限公司科技创新项目(2022-07) （2022-07）
