Accès ouvert
2025
article
OpenAlex
Lorena Deleanu, Ioana Gabriela Chiracu, Iulian PĂDURARU, Mario Constandache et autres
This study is among the first to characterize the tensile response of composites with quadriaxial glass fiber fabrics designed for marine structural applications. Four composite configurations were fabricated at laboratory scale, combining two matrix types (unsaturated polyester resin and epoxy resin) and …
ro
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Accès ouvert
2023
article
OpenAlex
Iulian PĂDURARU, George Ghiocel Ojoc, Horia Alexandru Petrescu, I Graur et autres
This paper presents experimental results on the behavior of a class of glass fiber composites under low velocity impacts, in order to analyze their usage in designing low velocity impact-resistant components in car and marine industries. Also, a finite element model at …
ro
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Accès ouvert
2023
conference-paper
OpenAlex
Iulian PĂDURARU, George Ghiocel Ojoc, Iulia Păduraru-graur, Horia Alexandru Petrescu et autres
Abstract This study investigates the impact behaviour of glass fiber epoxy composites with a focus on achieving enhanced safety. A drop weight impact test machine was used to perform a series of impact tests on the composite samples. Two different impactors as …
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Accès ouvert
2022
article
OpenAlex
Sebastian Marian DRĂGHICI, Irina DĂNĂILĂ ȚÎCĂU, Tamara APARECI GÎRNEȚ, Gabriel SĂRACU et autres
Recent and extensive reports on the development of preparation methods that can lead to obtaining various nanostructured polymeric materials, including the preparation of nanoparticles, nano-capsules, nano-gels, nano-fibres, dendrimers and nano-composites, have been presented in the literature to provide a picture of the …
ro
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Accès ouvert
2022
article
OpenAlex
Irina DĂNĂILĂ ȚÎCĂU, Tamara APARECI GÎRNEȚ, Sebastian Marian DRĂGHICI, Iulian PĂDURARU et autres
The main objective of this paper is to realise a review on fundamental research regarding the development of new and efficient methods to determine the mechanical, thermal, tribological, and thermo-mechanical properties of composite materials, analysing the results obtained through various graphs and …
ro
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Accès ouvert
2022
article
OpenAlex
Tamara APARECI GÎRNEȚ, Irina DĂNĂILĂ ȚÎCĂU, Iulian PĂDURARU, Adrian Cîrciumaru et autres
In recent years, the interest in using fiber reinforced composites (FRC) has increased due to their potential to replace traditional materials in various applications. The advantages of polymer composites from natural fibres are: biodegradability, high performance, market availability and low price. This …
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Accès ouvert
2021
article
OpenAlex
Iulian PĂDURARU, Vasile Bria, Adrian Cîrciumaru
In this paper impact resistance is a key parameter for composite materials. Composite structures can experience impact loads either accidentally in the designed life or in an anticipated hostile service environment. That is why the manufacturing technology is very important. For materials …
ro
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Accès ouvert
2020
conference-paper
OpenAlex
Iulian PĂDURARU, Gabriel SĂRACU, Mihaela Bogdan, I Graur et autres
Abstract The principal aim of this study is to point out the effect of organic compounds mixed with nickel nitrate in determined weight ratios on friction coefficient of two distinct types of epoxy systems.The two used organic compounds are starch and agar. …
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