NDT Method for the Assessment of Homogeneity of Steel Fibre Reinforced Concrete

Komárková, Tereza; Anton, O; Stonis, Patrik; Dubec, Branislav

doi:10.1109/miltechs.2019.8870065

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Non-destructive Testing (Ndt) Methods Used For Defect Identi...1

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Cited by 2 publications

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“…It is never possible to say with certainty that the parameters of both constructions are the same. Particularly in the case of non-homogeneous materials such as concrete, reinforced concrete and, in particular, reinforced concrete, it is necessary to have an NDT material quality control tool [27].…”

Section: Discussionmentioning

confidence: 99%

On Diagnostics of Military Fortification Constructions

Zezulová¹,

Kroupa²

2020

Challenges to National Defence in Contemporary Geopolitical Situation

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Section: Discussionmentioning

confidence: 99%

On Diagnostics of Military Fortification Constructions

Zezulová¹,

Kroupa²

2020

Challenges to National Defence in Contemporary Geopolitical Situation

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“…Radiography, as another example of NDT methodology, can be adopted for structure quality control purposes. Komárková et al (2019) utilized radiographic (NDT) method to evaluate uniformity of steel fibers, used as a reinforcement in concrete.…”

Section: Non-destructive Testing (Ndt) Methods Used For Defect Identi...mentioning

confidence: 99%

An Investigation Into Fundamental Frequency Of Intact And Defective 3D-Printed PLA Beams

Foroozanfar¹

2023

Preprint

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<p>3D printing manufacturing method gains significant attractions from industries due to its advantages over other production methods. Polylactic Acid (PLA), a biodegradable feedstock in 3D printing and one of the major filaments in the market, is investigated. Impulse Excitation Technique (IET) is used to obtain Young’s modulus of 3D-printed PLA specimens. The results are then compared with those achieved through experimental tensile testing. Displacement laser sensors, attached on the vertical base along cantilever 3D printed PLA cantilever beam samples, are used to capture the fundamental flexural frequencies of the beams, and are compared with those obtained from ANSYS FEM models. The effect of through-the-thickness cracks on the fundamental frequency of the defective samples is also studied, both experimentally and numerically. Samples including deliberately printed cracks of different depths and locations were examined through experiment and simulation. Results showed that the crack distance from the fixed-end has a more pronounced effect on fundamental frequency than the crack size. Finally, variation of numerically calculated fundamental frequency of defective beam models vs. crack depth and location are presented, which could be used as a database and pave the road to more elaborate crack identification techniques. </p>

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NDT Method for the Assessment of Homogeneity of Steel Fibre Reinforced Concrete

Cited by 2 publications

References 8 publications

On Diagnostics of Military Fortification Constructions

On Diagnostics of Military Fortification Constructions

An Investigation Into Fundamental Frequency Of Intact And Defective 3D-Printed PLA Beams

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