- Necmettin Erbakan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi
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- Prediction of Hardness Values of Some Wooden Materials Using Computer-Aided Tap Testing
Prediction of Hardness Values of Some Wooden Materials Using Computer-Aided Tap Testing
Authors : Imran Oral
Pages : 257-266
Doi:10.47112/neufmbd.2023.23
View : 76 | Download : 59
Publication Date : 2023-12-31
Article Type : Research
Abstract :Rapid and non-destructive determination of microhardness values for specific wood materials such as pine, poplar, and MDF laminate, which are widely used in various fields including historic buildings, artifacts, construction, home furniture, children’s playgrounds, and gardens, is crucial for assessing their quality and durability. The hardness of such wood materials is typically assessed using destructive traditional methods. Therefore, this research was conducted to determine the microhardness (HCATT) values of certain wood materials such as pine, poplar, and MDF laminate for the first time non-destructively using the Computer Aided Tap Tester (CATT) system and establishing the relationship between these HCATT values and the Brinell hardness (HB) values obtained from the literature for these materials. The HCATT values of the wood materials used in the study were determined by using the contact time between the tip of the CATT device (CATT) and the surfaces of the wood materials. Empirical equations for each wood material used in this research, representing the relationship between hardness values determined using two different hardness measurement methods, were established, including the constants (c-values). According to the results obtained from the research, the shortest contact time, with an average of 362 μs, was observed in the MDF laminate material, whereas the longest contact time, with 653 μs, was observed in the poplar material. Based on the HCATT values determined using the CATT system, the lowest hardness value was 0.34 MNm-1 in the poplar material, and the highest HCATT value was 1.10 MNm-1 in the MDF laminate material. On the other hand, the high level of correlation observed between the HB and HCATT values of the materials used in this research indicates that the non-destructive CATT system can be used instead of destructive methods for determining the microhardness values of such materials, without causing any harm to the material. CATT is expected to make a significant contribution to the relevant literature because it is both faster and more cost-effective compared to the destructive tests commonly used for microhardness measurement in materials today.Keywords : Sertlik, Vurma testi, Temas süresi, Brinell testi