Marin Lupoae

Prof. Dr. Marin Lupoae

orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 February 2021 in Sensors
Verified
Journal Article
Open access
LGLucian Ștefăniță Grigore
Lucian Ștefăniță Grigore
DGDamian Gorgoteanu
Damian Gorgoteanu
CMCristian-Constantin Molder
Cristian-Constantin Molder
OAOctavian Alexa
Octavian Alexa
Ionica OncioiuIonica Oncioiu
Ionica Oncioiu
RBRăzvan-Ionuț Bălașa
Răzvan-Ionuț Bălașa
To protect the personnel of the intervention units operating in high-risk areas, it is necessary to introduce (autonomous/semi-autonomous) robotic intervention systems. Previous studies have shown that robotic intervention systems should be as versatile as possible. Here, we focused on the idea of a robotic system composed of two vectors: a carrier vector and an operational vector. The proposed system particularly relates to the carrier vector. A simple analytical model was developed to enable the entire robotic assembly to be autonomous. To validate the analytical-numerical model regarding the kinematics and dynamics of the carrier vector, two of the following applications are presented: intervention for extinguishing a fire and performing measurements for monitoring gamma radiation in a public enclosure. The results show that the chosen carrier vector solution, i.e., the ground vehicle with six-wheel drive, satisfies the requirements related to the mobility of the robotic intervention system. In addition, the conclusions present the elements of the kinematics and dynamics of the robot.

28 June 2019 in Arabian Journal for Science and Engineering
Verified
Journal Article
Closed access
PDF file
CBCatalin Baciu
Catalin Baciu
MLMarin Lupoae
Marin Lupoae
GNGeorge Bogdan Nica
George Bogdan Nica
DCDaniel Constantin
Daniel Constantin

12 December 2022 in Applied Sciences
Verified
Journal Article
Open access
PDF file
ETEugen Trana
Eugen Trana
MLMarin Lupoae
Marin Lupoae
BIBogdan Iftimie
Bogdan Iftimie
ACAlexandru Catalin Casapu
Alexandru Catalin Casapu
The neutralization of improvised explosive devices (IEDs) involves the use of disrupting agents propelled explosively. Due to the special nature of such materials, a proper investigation of the parts most susceptible to sympathetic detonation is in order. The initiation of IEDs is caused by detonation products, shock waves, and propelled disruptive agents. In this paper, initiation of IED composition (acceptor charge) due to the neutralization system’s (donor charge’s) explosive charge detonation is evaluated based on the influence of the first two of the three above-mentioned factors. One of the most susceptible components of IEDs to sympathetic initiation is the blasting cap. Based on an experimental and numerical mix approach, blasting cap tendency to sympathetic detonation in open field had been investigated. The suitability of critical energy fluence and Chapman–Jouguet threshold criteria to the sympathetic detonation tendency of blasting caps was investigated. Experimental and numerical/analytical results describing the phenomenon are in agreement.

3 October 2025 in International Journal of Protective Structures
Verified
Journal Article
Closed access
MLMarin Lupoae
Marin Lupoae
ACAnabella Cotovanu
Anabella Cotovanu
ACAlexandru-Cătălin Casapu
Alexandru-Cătălin Casapu
CBCătălin Baciu
Cătălin Baciu
DCDaniel Constantin
Daniel Constantin
PMPatricia Murzea
Patricia Murzea
Door breaching represents a tactical procedure employed by security and civil protection forces to rapidly gain access to the interior of a structure by overcoming physical barriers using specialized methods and equipment. While metal door breaching techniques are primarily utilized by special intervention units, their application to residential metal doors remains limited due to an insufficient understanding of the breaching mechanics and the critical need to ensure personnel safety. This study presents experimental results on the breaching of residential metal doors using push-type explosive devices strategically positioned over locking mechanisms. The investigation focused on assessing the influence of the core material—polystyrene, polyurethane foam, and mineral wool—on the deformation of the door leaf and the overall breaching process. The experiments were conducted on both full-scale doors fabricated under controlled laboratory conditions and commercially available residential metal doors acquired from the local market. Additionally, the study analyzed the impact of the door leaf composition (steel sheets of 0.5 mm and 1.0 mm thickness and medium-density fiberboard (MDF)) and the role of the locking configurations, including the number of locking bolts and multi-lock points, on the breaching efficiency. Furthermore, the study investigated the spatial positioning of the explosive device on the door leaf, the effect of a 25 ms detonation delay between multiple explosive devices and the role of a Kevlar fabric in facilitating the uniform distribution of the water jet charge. Moreover, the research assessed the impact of the shock wave on intervention personnel, as well as the potential risk posed by door fragments to room occupants. Experimental findings indicate that explosive charges placed directly over the locking mechanisms effectively breach metal doors irrespective of door leaf composition. However, this breaching approach may generate significant risks to room occupants, highlighting the need for further analysis of mitigation strategies to enhance operational safety.