首页|Data-model coupling driven stress field measurements
Data-model coupling driven stress field measurements
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
This paper presents a method for measuring stress fields within the framework of coupled data models,aimed at determining stress fields in isotropic material structures exhibiting localized deterioration behavior without relying on constitutive equations in the deteriorated region.This approach contributes to advancing the field of intrinsic equation-free mechanics.The methodology combines measured strain fields with data-model coupling driven algorithms.The gradient and Canny operators are utilized to process the strain field data,enabling the determination of the deterioration region's location.Meanwhile,an adaptive model building method is proposed for constructing coupling driven models.To address the issue of unknown datasets during computation,a dataset updating strategy based on a differential evolutionary algorithm is introduced.The resulting optimal dataset is then used to generate stress field results.Validation against finite element method calculations demonstrates the accuracy of the proposed method in obtaining full-field stresses in specimens with local degradation behavior.
Stress field measurementsData-model coupling drivenDifferential evolutionary algorithmMaterial dataset
Guangbo Wang、Jian Zhao、Jiahui Liu、Dong Zhao
展开 >
School of Technology,Beijing Forestry University,Beijing 100083,China
Key Lab of State Forestry Administration on Forestry Equipment and Automation,Beijing Forestry University,Beijing 100083,China
State Key Laboratory of Efficient Production of Forest Resources,Beijing 100083,China
NETL
NSTL
万方数据
