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Deformation characteristics of chopped fibre composites subjected to quasi-static tensile loading
Šleichrt, J. ; Adorna, M. ; Neühauserová, M. ; Fenclová, N. ; Petráňová, Veronika
This work presents deformation behaviour of cost effective chopped fiber composites. Use of chopped fibre is advantageous for manufacturing however complex shape parts production technology could be challenging. Batches of samples with different fibres composition were subjected to uni-axial tensile loading to obtain overall materials properties and inspection of proper manufacturing based on local deformation inhomogeneities. Both crossbeam displacement and optical strain measurement were used for elastic characteristics evaluation. Deformation response was derived from full-field optical strain measurements based on digital image correlation method. Relatively large variation of mechanical properties testing of samples was found.
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Rozvoj a aplikace digitální obrazové korelace
Jandejsek, Ivan
The presented work devotes to the methodology and related software development for Digital Image Correlation (DIC). DIC is used for experimental mechanics studies. It is the non-contact technique (Optical or X-Ray) that provides full-field and high resolution measurement of displacements and strains within an object subjected to loading.
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Metoda interpolovaných elips založena na digitální obrazové korelaci
Vavřík, Daniel ; Jandejsek, Ivan
This paper presents the application of Digital Image Correlation (DIC) methodology for the measurement of strain fields using the Method of Interpolated Ellipses (MIE). It will be shown that MIE has the ability to measure strain fields with higher Signal to Noise Ratio in comparison with standard approaches of the strain field measurement. Consequently MIE is less sensitive on the measurement inaccuracy which is always present in real experiments.
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