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\begin{document}

\title{Crack growth measurement and J-integral evaluation of additively
manufactured polymer using digital image correlation and FE modeling}



\author[1]{Mohamed Ali BOUAZIZ}%
\author[1]{MARAE-DJOUDA Joseph}%
\author[1]{ZOUAOUI  Marouene}%
\author[1]{GARDAN Julien}%
\author[2]{HILD François}%
\affil[1]{EPF School of Engineers}%
\affil[2]{ENS Paris-Saclay}%


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  \date{June 14, 2024}


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\begin{abstract}
This paper presents and compares two combined experimental-numerical
techniques for the investigation of fracture properties of additively
manufactured polymer parts using digital image correlation (DIC)
measurements. The first method uses only measured kinematic fields, and
the second is based on Finite Element simulations driven by measured
boundary conditions. A micro Single Edge Notched Tensile sample
manufactured by fused filament fabrication of ABS is studied. It is
shown that both methods locally extract J-integrals, and the crack tip
is accurately located by the FE-based method. By comparing computed
displacements to those measured via DIC it is possible to locally check
the validity of the numerical model. The initiation and propagation
stages are analyzed independently thanks to two different magnifications
of acquired image series%
\end{abstract}%



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