Determination of the full-field stress and displacement using photoelasticity and sampling moirémethod in a 3D-printed model

作     者：Zhangyu Ren Qi Zhang Yang Ju Huimin Xie Zhangyu Ren;Qi Zhang;Yang Ju;Huimin Xie

作者机构：School of Emergency Management and Safety EngineeringChina University of Mining and Technology at BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe MiningChina University of Mining and Technology at BeijingBeijing 100083China Qiantang Science and Technology Innovation CenterZhejiang 310018China School of Aerospace EngineeringTsinghua UniversityBeijing 100084China 

出 版 物：《Theoretical & Applied Mechanics Letters》 (力学快报（英文版）)

年 卷 期：2022年第12卷第6期

页      面：409-418页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：financial support from the National Natural Science Foundation of China(Nos.52004137,52121003,51727807,12032013 and 11972209) Fundamental Research Funds for the Central Universities(No.2022XJAQ01) 

主　　题：Stress fields Displacement fields Photoelasticity Sampling moirémethod 3D printing technique 

摘      要：The quantitative characterization of the full-field stress and displacement is significant for analyzing the failure and instability of engineering *** optical measurement techniques such as photoelasticity,moiréand digital image correlation methods have been developed to achieve this ***,these methods are difficult to incorporate to determine the stress and displacement fields simultaneously because the tested models must contain particles and grating for displacement measurement;however,these elements will disturb the light passing through the tested models using *** this study,by combining photoelasticity and the sampling moirémethod,we developed a method to determine the stress and displacement fields simultaneously in a three-dimensional(3D)-printed photoelastic model with orthogonal ***,the full-field stress was determined by analyzing 10 photoelastic patterns,and the displacement fields were calculated using the sampling moiré*** results indicate that the developed method can simultaneously determine the stress and displacement fields.