Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Stefan-Dan Pastrama"'
Autor:
Anton Hadăr, Andrei-Daniel Voicu, Florin Baciu, Daniel Vlăsceanu, Daniela-Ioana Tudose, Ştefan-Dan Pastramă
Publikováno v:
Aerospace, Vol 10, Iss 7, p 647 (2023)
This paper describes the transition towards a composite structure, with the same overall aerodynamic characteristics, for a tail rotor blade of an IAR330 helicopter. The newly proposed structure of the composite blade is made of a carbon-roving spar
Externí odkaz:
https://doaj.org/article/6f8606ac345c471d9774de12232efde7
Ballistic protection plates for military helicopters structures: Experimental and numerical research
Autor:
Catalin Adetu, Anton Hadar, Vasile Nastasescu, Alina Elena Adetu, Andrei Daniel Voicu, Stefan-Dan Pastrama
Publikováno v:
Materials Today: Proceedings.
Publikováno v:
Materials Today: Proceedings.
Publikováno v:
Materials Today: Proceedings. 62:2587-2593
Publikováno v:
Materials Today: Proceedings. 62:2404-2408
Publikováno v:
Materials Today: Proceedings. 32:128-132
Tensile testing is one of the most important types of engineering tests used for all metallic materials that provides material characteristics. In this paper, experiments were performed on grade PC52 (0.22% C) steel specimens using an INSTRON 8801 un
Publikováno v:
Materiale Plastice. 57:140-151
The paper presents a numerical study regarding the mechanical response of the body of a freight wagon to the usual loads encountered during service. The main goal of the present research is to investigate the possibility to replace the steel walls of
Autor:
Catalin Ciobirca, Lucian Gheorghe Gruionu, Anca Loredana Udristoiu, Stefan Dan Pastrama, Cătălin Constantinescu, Gabriel Gruionu, Andreea Şoimu-Iacob
Publikováno v:
Materials Today: Proceedings. 12:304-308
During lung cancer screening, suspected nodules are detected using computed tomography. Although most nodules are benign, a tissue diagnostic is still required. Currently, all diagnostic procedures that use image-guided tools expose both the patient
Autor:
Stefan Dan Pastrama
Publikováno v:
ACTA Universitatis Cibiniensis. 69:16-22
In this paper, the experimental determination of the stress intensity factor in thick walled cylinders subject to uniform internal pressure and having longitudinal non-penetrating cracks is presented. Photoelastic measurements were used together with
Autor:
Håkon Olav Leira, Gabriel Gruionu, Lucian Gheorghe Gruionu, Thomas Langø, Catalin Ciobirca, Tore Amundsen, Stefan Dan Pastrama, Emil Nutu
Publikováno v:
Materials Today: Proceedings. 4:5761-5766
The paper presents an algorithm proposed by the authors in order to obtain a theoretical model of the bronchial and used to test the virtual bronchoscopy procedure implemented in an innovative system for bronchoscopy with electromagnetically tracked