| 摘要 |
A method of assessing structural defects in a structure, the method comprising: determining 800 at least one critical damage strain value of the structure, capturing 100 a first image of a surface of the structure under a first load and capturing 200 a second image of the surface under a second load. A position matrix is assigned on the first image and a deformation matrix comprising a deformation value at each position of the position matrix is obtained 300 by using an image correlation technique on the first and second images and comparing deformation of corresponding parts of the surface. A strain matrix is calculated using the obtained deformation matrix and a micro-crack is determined to be present 400 at a position if an element of the strain matrix corresponding to the position is greater than or equal to the critical damage strain value, wherein the critical damage strain value is a strain value at which a micro-crack is detected or predicted to appear and/or propagate. |
