Application of Ultraviolet (UV) Radiation and Fluorescence for DIC Measurements - Quality Improvement

König, Kristian; Reis, Martin; Vielhaber, Michael; Jung, Anne

doi:10.1016/j.optlaseng.2022.107140

Cited by 3 publications

(1 citation statement)

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“…Consequently, the experiments were recorded with an infrared (IR) camera system (ImageIR9360, Infratec GmbH, Dresden, Germany) on one side and a 9 Megapixel charged coupled device (CCD) camera (Manta G-917B, Allied Visions Technologies GmbH, Puchheim, Germany) on the other side (Figure 3). The applied UV-DIC according to König et al [44] improves not only the quality of the DIC measurements but also improves the IRT results measured on the opposite side by avoiding reflections of visible light. The whole setup was covered with a black box to minimize environmental influences and supports a dull and dark environment without light reflections.…”

Section: Uniaxial Compression Experimentsmentioning

confidence: 99%

Applicability of correlated digital image correlation and infrared thermography for measuring mesomechanical deformation in foams and auxetics

et al. 2022

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Cellular materials such as metal foams or auxetic metamaterials are interesting microheterogeneous materials used for lightweight construction and as energy absorbers. Their macroscopic behavior is related to their specific mesoscopic deformation by a strong structure‐property‐relationship. Digital image correlation and infrared thermography are two methods to visualize and study the local deformation behavior in materials. The present study deals with the full‐field thermomechanical analysis of the mesomechanical deformation in Ni/PU hybrid foams and Ni/polymer hybrid auxetic structures performing a correlative digital image correlation and infrared thermography. Instead of comparing and correlating only the primary output variables of both methods, strain and temperature, also strain rates and temperature rates occurring during deformation were compared. These allow for a better correlation and more conclusive results than obtained using only the primary output variables.

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Section: Uniaxial Compression Experimentsmentioning

confidence: 99%