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001-es BibID:	BIBFORM105917
035-os BibID:	(Scopus)85138777178
Első szerző:	File Máté
Cím:	Optical Investigation of the Strain Distribution with Different Orientations on Aerospace Composite Material / File Máté, Kállai Imre, Huri Dávid, Mankovits Tamás
Dátum:	2023
ISSN:	2195-4356 2195-4364
Megjegyzések:	The orientation in composite materials determines the mechanical properties of the structure. Different orientations have different usages, and by combining multiple layers with changing orientations the best mechanical properties can be achieved for the given load case. This work aims to investigate the effects of the different orientations on the mechanical properties of a glass-fibre reinforced composite material used in aerospace components. Multiple specimens were prepared using the vacuum bagging technology with 0°, 45° and 90°orientations based on the warp direction. The laboratory measurements were done with the INSTRON 68TM-10 material testing machine and the GOM Aramis 12M full-field optical measurement system, which works based on the digital image correlation method. The Aramis system enables the real-time tracking and visualization of the displacement and strain values on the whole surface of the specimen. Under the same conditions tensile tests were performed on each specimen and the results were compared. The mechanical material properties of each orientation were determined.
Tárgyszavak:	Műszaki tudományok Anyagtudományok és technológiák konferenciacikk folyóiratcikk digital image correlation, material testing, fibre orientation, prepreg composite material
Megjelenés:	Lecture Notes in Mechanical Engineering. - 2023 (2023), p. 549-557. -
További szerzők:	Kállai Imre (mérnök) Huri Dávid (1990-) (gépészmérnök) Mankovits Tamás (1981-) (gépészmérnök)
Pályázati támogatás:	TKP2020-NKA-04 Egyéb
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM101613
Első szerző:	File Máté
Cím:	Lineárisan rugalmas anyagmodell pontosságának vizsgálata poliamid modellezésekor optikai mérőrendszer segítségével = Investigating the accuracy of the linear elastic material models when modelling PA6 using an optical measurement system / File Máté, Huri Dávid, Mankovits Tamás
Dátum:	2022
ISSN:	2668-9685
Tárgyszavak:	Műszaki tudományok Gépészeti tudományok előadáskivonat könyvrészlet
Megjelenés:	XXX. Nemzetközi Gépészeti Konferencia - OGÉT 2022. - p. 128-131. -
További szerzők:	Huri Dávid (1990-) (gépészmérnök) Mankovits Tamás (1981-) (gépészmérnök)
Pályázati támogatás:	TKP2020-NKA-04 Egyéb
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM099887
035-os BibID:	(cikkazonosító)1057 (Scopus)85123110884 (WOS)000754950800001
Első szerző:	File Máté
Cím:	Optical Investigation of the Limits of Modeling the Nonlinear Elastic Behavior of PA6 Using Linear Elastic Material Models / Máté File, Tamás Mankovits, Dávid Huri
Dátum:	2022
ISSN:	2076-3417
Megjegyzések:	Featured Application In the design of engineering polymeric products, the detailed finite element investigation is indispensable. In most cases, polymeric products are investigated with multilinear material models over the entire stress-strain range. The definition of these material models requires material parameters, which must be obtained through time and cost demanding laboratory measurements. For some applications, such as quasi-static loading, it would be sufficient to use a linear elastic material model, the material constants of which can be obtained quickly. This article can help designers to apply the right material model as the linear elastic material model can be used until the 0.96% strain value in the case of the PA6 material with sufficient accuracy. One of the most critical issues during polymer finite element simulations is the selection of the proper material models. The widely used and accepted multilinear material models require load case-specific material tests, which are time and cost demanding. Data for these characteristics must be acquired by standardized measurements. On the other hand, the parameters required to create a linear elastic material model in most cases are easy to obtain, and the establishment of the model is a shorter process. This research is aimed to provide information to engineers about the possibility of modeling the nonlinear elastic materials by using linear elastic material models and about the limits of such models. To create the most accurate material models, laboratory measurements were performed on polyamide (PA6) material, which is a widely used raw material in the industry. Test specimens were manufactured to obtain material constants according to the ISO 527-2 standard, and for validating the effectiveness of the applied material models, three different tensile specimens were created, which were tested under quasi-static loading in the elastic region. A comprehensive finite element investigation was performed, and the numerical results were then compared to laboratory measurements using the GOM Aramis digital image correlation (DIC) system. By comparing the optically measured strain data to the numerical results, it was determined that the nonlinear elastic materials can be modeled using linear elastic models in a well identifiable strain range with sufficient accuracy.
Tárgyszavak:	Műszaki tudományok Anyagtudományok és technológiák idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk polyamide 6 finite element analysis digital image correlation material model fitting
Megjelenés:	Applied Sciences-Basel. - 12 : 3 (2022), p. 1-16. -
További szerzők:	Mankovits Tamás (1981-) (gépészmérnök) Huri Dávid (1990-) (gépészmérnök)
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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