公开(公告)号：US20210199637A1

公开(公告)日：2021-07-01

申请号：US17049194

申请日：2019-11-25

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Fanxiu CHEN ,  Bin ZHANG ,  Pengfei GUO ,  Zuquan JIN

IPC: G01N33/38 ,  G01N17/00 ,  G01L5/1627 ,  H04N5/247 ,  H04N5/225 ,  G06T7/00

Abstract: A method for measuring corrosion-expansion force during cracking of concrete due to corrosion and expansion of reinforcing steel; wherein, deformation on a surface of reinforced concrete is photographed based on a digital image correlation (DIC) method, a full-field displacement and a full-field strain on a surface of the concrete are analyzed and calculated, a relationship between corrosion-expansion force and the strain on the surface of the concrete is found through an established theoretical model, and corrosion-expansion force of reinforcing steel and a change rule of the corrosion-expansion force are calculated. Therefore, the method is simple and includes with safe and reliable operations, scientific principles, and low costs, so that a change in corrosion-expansion force during corrosion and expansion of reinforced concrete can be monitored in real time.