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

2016 ◽  
Author(s):  
Krzysztof Malowany ◽  
Marcin Malesa ◽  
Artur Piekarczuk ◽  
Małgorzata Kujawińska ◽  
Paweł Skrzypczak ◽  
...  
2019 ◽  
Vol 9 (7) ◽  
pp. 1305 ◽  
Author(s):  
Krzysztof Malowany ◽  
Artur Piekarczuk ◽  
Marcin Malesa ◽  
Małgorzata Kujawińska ◽  
Przemysław Więch

Many building structures, due to a complex geometry and non-linear material properties, are cumbersome to analyze with finite element method (FEM). A good example is a self-supporting arch-shaped steel sheets. Considering the uncommon geometry and material profile of an arch (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 arch structures have been proposed. The methodology is based on three steps of development and validation of a FEM with utilization of a digital image correlation (DIC) method. The experiments are performed by means of 3D DIC systems adopted sequentially for each measurement step conditions from small size sections, through few segment constructions up to full scale in situ objects.


2006 ◽  
Author(s):  
Thomas Becker ◽  
Karsten Splitthof ◽  
Thorsten Siebert ◽  
Peter Kletting

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 30520-30535 ◽  
Author(s):  
Dana Solav ◽  
Kevin M. Moerman ◽  
Aaron M. Jaeger ◽  
Katia Genovese ◽  
Hugh M. Herr

2021 ◽  
pp. 002199832110565
Author(s):  
Amos Ichenihi ◽  
Wei Li ◽  
Li Zhe

Thin-ply hybrid laminates of glass and carbon fibers have been widely adopted in engineering pseudo-ductility. In this study, a Finite Element model is proposed using Abaqus to predict pseudo-ductility in thin-ply laminates consisting of three materials. These materials comprise continuous carbon (CC) and continuous glass sandwiching partial discontinuous carbon (DC). The model adopts the Hashin criterion for damage initiation in the fibers and the mixed-mode Benzeggagh-Kenane criterion on cohesive surfaces for delamination initiation and propagation. Numerically predicted stress–strain results are verified with experimental results under tensile loading. Results show pseudo-ductility increases with the increase in DC layers, and pseudo-yield strength and strain increase with the increase in CC layers. 3D-Digital Image Correlation results indicate delamination growth on pseudo-ductile laminates, and the calculated Poisson’s ratios show pseudo-ductility occurs below 0.27. Moreover, Poisson’s ratio decreases with an increase in pseudo-ductility.


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