Application of 3D digital image correlation for development and validation of FEM model of self-supporting metal plates structures

Many building structures due to complex geometry and nonlinear material properties are difficult to be analyzed with FEM methods. A good example is a self-supporting metal plates structure. Considering uncommon geometry and material characteristic of a metal plate (due to plastic deformations, cross section of a trough, a goffer pattern), the local loss of stability can occur in unexpected regions. Therefore, the hybrid experimental-numerical methodology of analysis and optimization of metal plates structures has been developed. The methodology is based on three steps of development and validation of a numerical model with utilization of Digital Image Correlation measurements. In each step, the measurements are performed in different environments, with different accuracies and different scales. In this paper, the results of analysis performed with Digital Image Correlation, that enabled development and validation of FEM model are presented. The performed modification of a measurement setup is also described.

[1]  Roger Xu,et al.  Cluster approach based multi-camera digital image correlation: Methodology and its application in large area high temperature measurement , 2014 .

[2]  K-H. Laermann,et al.  Hybrid Techniques in Experimental Solid Mechanics , 2000 .

[3]  Malgorzata Kujawinska,et al.  Application of 3D digital image correlation in maintenance and process control in industry , 2013, Comput. Ind..

[4]  Malgorzata Kujawinska,et al.  Stability and bearing capacity of arch-shaped corrugated shell elements: experimental and numerical study , 2015 .

[5]  Jean-José Orteu,et al.  Multiple-Camera Instrumentation of a Single Point Incremental Forming Process Pilot for Shape and 3D Displacement Measurements: Methodology and Results , 2011 .

[6]  Michael A. Sutton,et al.  Error Assessment in Stereo-based Deformation Measurements , 2011 .

[7]  Paul J. Besl,et al.  A Method for Registration of 3-D Shapes , 1992, IEEE Trans. Pattern Anal. Mach. Intell..

[8]  Malgorzata Kujawinska,et al.  Application of Hybrid FEM-DIC Method for Assessment of Low Cost Building Structures , 2012 .

[9]  Timothy J. Miller,et al.  On Error Assessment in Stereo-based Deformation Measurements , 2011 .

[10]  Malgorzata Kujawinska,et al.  Non-destructive testing of industrial structures with the use of multi-camera Digital Image Correlation method , 2016 .

[11]  Hubert W. Schreier,et al.  Image Correlation for Shape, Motion and Deformation Measurements: Basic Concepts,Theory and Applications , 2009 .

[12]  George Lampeas,et al.  A hybrid framework for nonlinear dynamic simulations including full-field optical measurements and image decomposition algorithms , 2013 .

[13]  Robert Cybulski,et al.  Local buckling of cold-formed elements used in arched building with geometrical imperfections , 2014 .

[14]  Christopher M Sebastian,et al.  Comparison of Numerical and Experimental Strain Measurements of a Composite Panel Using Image Decomposition , 2011 .