Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Lorena Deleanu"'
Autor:
Lorena Deleanu, Constantin Georgescu, George Cătălin Cristea, Traian Florian Ionescu, Guglea Dionis, George Ghiocel Ojoc, Dumitru Dima, Iulia Paduraru
Publikováno v:
Tribology in Industry, Vol 46, Iss 3, Pp 398-417 (2024)
This paper presents an analysis of standards applied in tribology, especially concerning materials, test methods and failures of machine components, related to exploitation under load and motion. By the help of their own research and based on open li
Externí odkaz:
https://doaj.org/article/d1699e98600c4a14b4afe31a7ad5bc55
Autor:
Lorena Deleanu, Alina Cantaragiu Ceoromila, Constantin Georgescu, Mihail Botan, George Ghiocel Ojoc, Ioana Gabriela Chiracu
Publikováno v:
Tribology in Industry, Vol 46, Iss 3, Pp 447-457 (2024)
The investigation of a tribosystem failure is important in establishing its causes with the highest probability. This paper proposes a discussion on particular aspects of failure in polymeric composites sliding against steel in dry regime. At micro l
Externí odkaz:
https://doaj.org/article/58cad406944f4e8aa303755d2028fced
Autor:
Dionis GUGLEA, George Catalin CRISTEA, Lorena DELEANU, Traian Florian IONESCU, George Ghiocel OJOC, Dumitru DIMA, Constantin GEORGESCU
Publikováno v:
INCAS Bulletin, Vol 15, Iss 4, Pp 137-148 (2023)
This paper presents an analysis based on experimental data for pointing out the behavior of rapeseed oil when it is additivated with a modifier of friction and wear, the nano hexagonal Boron nitride. All tests are done on a four-ball machine, in mild
Externí odkaz:
https://doaj.org/article/b9f184d23ec74033b68746c82d2fd6b6
Publikováno v:
INCAS Bulletin, Vol 14, Iss 4, Pp 95-109 (2022)
This paper presents experimental results and a failure analysis of a composite for ballistic protection. The stratified plate is manufactured at laboratory scale, after a technology designed by the authors. The plates were tested for level FB2, takin
Externí odkaz:
https://doaj.org/article/0c789a600c494284a573fc71cb05edf1
Publikováno v:
INCAS Bulletin, Vol 12, Iss 4, Pp 145-154 (2020)
This paper presents an analysis of two cases, simulating the impact of a cylindical projectile on a perfectly rigid plate. One case is run without friction, the second one is run taking into account a friction coeficient between the plate and the pro
Externí odkaz:
https://doaj.org/article/167fe28f07594cc8b29c4fcbf389413e
Autor:
Traian Florian IONESCU, Adrian-Alin SORCARU, Dionis GUGLEA, George Catalin CRISTEA, Constantin GEORGESCU, Lorena DELEANU
Publikováno v:
INCAS Bulletin, Vol 12, Iss 2, Pp 63-72 (2020)
This paper presents the influence of hexagonal boron nitride (hBN) as additive in refined rapeseed oil in different mass concentration of 0.25%wt, 0.5%wt and 1%wt on the tribological parameters, obtained on a four-ball machine. The test parameters we
Externí odkaz:
https://doaj.org/article/d4025af06af94b7db4d3373a0af9ffcd
Autor:
Dionis GUGLEA, Traian Florian IONESCU, Constantin GEORGESCU, Dumitru DIMA, George Ghiocel OJOC, Lorena DELEANU
Publikováno v:
Proceedings on Engineering Sciences, Vol 1, Iss 1, Pp 582-589 (2019)
This paper presents the influence of BN as additive in refined rapeseed oil in a mass concentration of 1%wt on the tribological parameters. Tests are done on a four-ball machine. The test parameters were load: 100 N...300 N and the the sliding speeds
Externí odkaz:
https://doaj.org/article/7d8d3681e7164cc0a2e76358d6e9b199
Autor:
Traian Florian IONESCU, Dionis GUGLEA, Constantin GEORGESCU, Petrica ALEXANDRU, Lorena DELEANU
Publikováno v:
Proceedings on Engineering Sciences, Vol 1, Iss 1, Pp 15-23 (2019)
This paper presents the influence of ZnO as additive in refined rapeseed oil in a mass concentration of 1%wt on the tribological parameters. Tests are done on a four-ball machine from the laboratory LubriTest, at "Dunarea de Jos" University of Galati
Externí odkaz:
https://doaj.org/article/9053f5ae64d24c79aa8cdd477ca73e6a
Publikováno v:
Proceedings on Engineering Sciences, Vol 1, Iss 1, Pp 154-167 (2019)
This paper presents a review on using friction coefficient in modelling ballistic impact. The are discussed on friction introduced in modelling the impact at different levels: micro (fiber and yarns), meso (woven or unidirectional fabrics) and macro
Externí odkaz:
https://doaj.org/article/32f8f12f25ef4e54965300d58b5d47f1
Autor:
George Catalin CRISTEA, Adriana STEFAN, George PELIN, Cristina-Elisabeta PELIN, Maria SONMEZ, Sorina ILINA, Lorena DELEANU
Publikováno v:
INCAS Bulletin, Vol 13, Iss 4, Pp 47-48 (2021)
This paper presents the results of mechanical and tribological characteristics for two composites: PA6 as matrix and 5% aramid whiskers as additive material and PA6 + 10% aramid whiskers, comparing them to those made of PA6 (polyamide 6). To improve
Externí odkaz:
https://doaj.org/article/a01613a8df2c4eae99f638a9e2c4cc6c