BrainMap

Mr. Anton Hadar

Professor

Professor - UNIVERSITATEA NAŢIONALĂ DE ŞTIINŢĂ ŞI TEHNOLOGIE POLITEHNICA BUCUREŞTI

Other affiliations

Membru corespondent - ACADEMIA OAMENILOR DE STIINTA DIN ROMANIA (Romania)

Membru corespondent - ACADEMIA DE STIINTE TEHNICE DIN ROMANIA (Romania)

Researcher | Teaching staff | Scientific reviewer

Web of Science ResearcherID: U-1700-038W-1774

Expertise & keywords

Reactive Inkjet Printing of Epoxy Thermoset Composites Call name: P 3 - SP 3.2 - Proiecte ERA.NET
ERANET-M-RIPE4TEC-1 2020 - 2023

Role in this project:

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); JOANNEUM RESEARCH Forschungsgesellschaft m.b.H. (AT); bto-Epoxy GmbH (AT); Montanuniversität Leoben (AT)

Affiliation:

Project website: http://www.ripe4tec.upb.ro/

Abstract:

The core technology to be developed in the project is reactive inkjet printing as a technology to enable the additive manufacturing of novel thermoset composites based on epoxy-polyamine resins. The technology will allow not only for printing parts of complex shape without the need for casting or subsequent processing, but also the control of the microstructure. We will pioneer heterogeneous epoxies, composed from hard and soft microscale subdomains, with contrast and spatial distribution, which will be designed by modelling such to enhance the overall material toughness, without compromising its strength and modulus. Functionalized nanoparticles will be introduced at specific sites to either produce reinforcement or to enhance energy dissipation. The work will greatly broaden the range of applications of epoxies, will lead to a new thermoset printing technology and will introduce new material design concepts with diverse applications.

Functional hierarchical composites for structural applications Call name: P 3 - SP 3.2 - Proiecte ERA.NET
ERA-M-HIEROCOMP 2015 - 2018

Role in this project:

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); COMPOZITE S.R.L. (RO)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: http://www.hierocomp.at

Abstract:

It is proposed to develop a new class of composite materials: functional, hierarchical composites for structural applications. Mechanical properties of these materials will be enhanced by controlling the state and properties of interfaces between reinforcements and matrix at both nano and microscales. The engineered microstructure will also allow monitoring the state of damage while in service. Epoxy-based composites, which have a broad range of structural application in various industries will be considered. The need for epoxies with superior toughness is significant in applications in which vibrations are important (e.g. wind turbine and helicopter blades), in glues and other applications in the automotive industry. The consortium is a close collaboration between two academic partners and three industrial partners from Austria and Romania, with complementary expertise and with the capability to bring the proposed advances from the concept state to specific products.

Development of a new type of external additional fuel tank, attached to the IAR 330 PUMA helicopter, using advanced composite materials Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1173 2014 - 2017

Role in this project:

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE TURBOMOTOARE - COMOTI (RO); CENTRUL DE CERCETARE PROIECTARE SI PRODUCTIE REFRACTARE S.A. (RO)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: http://www.upb-phact.webs.com

Abstract:

Aeronautic industry currently makes large investments in research and development of new solutions for efficient energy consumption while improving aircraft performances. Extend of the flight range completes the researchers concerns in the field.

Both metal matrix and especially the polymer matrix composite materials successfully respond to these requirements and therefore worldwide professionals focus their attention on them.

Due to their properties, reduced specific weight, high mechanical properties, stiffness, anisotropy, and design flexibility, composite materials are subject to extended research, both structurally and technologically, for their use on aircraft.

The project objectives were generated by the industrial partner needs and are part of his development strategy for the design and development of a new generation aircraft.

The project aims to develop an auxiliary fuel tank made in an advanced polymeric matrix composite materials, which satisfy the aviation industry requirements, from design, structural design, technology implementation and ending with a complex set of tests, inspection and testing in accordance with the applicable procedures to the aircraft.

Laboratory scale technological tests, associated with extensive investigations will lead to the determination of an optimal composite through an innovative and performant technology.

Innovative solutions will be the basis for a complex experimental model achievement that will have the characteristics of an aircraft auxiliary jettison fuel tank. The experimental model will be subject to a complex set of tests and trials based on relevant aerospace procedures and standards agreed by potential end-users of the project results.

Thus the main objective "Development, testing and implementation of an innovative technology to achieve an aircraft auxiliary jettison fuel tank made in advanced composite materials" will certainly be achieved.

During the project implementation significant results are expected: innovative technology for achieving aircraft auxiliary jettison fuel tanks in advanced composite materials; achievement of a fuel tank experimental model made in an advanced composite material; characterization of the proposed technical solutions, and of the advanced composite materials promoted through the experimental testing in accordance with the aircraft procedures and standards that will be the basis of the assessment and validation of the proposed innovative solutions.

Intelligent colaborative online platform for design and manufacturing personalized guides in orthopedic surgery Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-0251 2014 - 2017

Role in this project:

Coordinating institution: UNIVERSITATEA POLITEHNICA DIN BUCURESTI

Project partners: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); SPITALUL CLINIC "COLENTINA" BUCURESTI (RO); OSF GLOBAL SERVICES SRL (RO)

Affiliation: UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)

Project website: http://poigo.osf-demo.com/

Abstract:

The approach of using surgical guides based on patient specific data enrolls in the current trend of personalized medicine in which the focus is on individuals by tailoring the medical interventions according to their characteristics and needs. The need of patient specific surgical instruments can arise from routine activities – in order to ease/simplify certain procedures or to improve performances – or be determined by new and complicated procedures, for situations not encountered before, leading to important decrease of operation time and help to avoid complications. In orthopedic applications, patient-specific guides can exactly match patient bone structures, materializing the planned trajectory for drilling, tapping, cutting or aligning. Therefore, their use improve the accuracy of different procedure (e.g. for trauma surgery as inserting pedicle screws in vertebrae, knee or hip, for inserting plates for osteotomies around the knee or applying guides for different steps in arthroplasty, etc.), helping the surgeons to better orient during intervention, decreasing the surgery time, costs and risks of infections and reduce x-ray radiation exposure during surgery.

Currently, the processes of designing and manufacturing patient specific instruments and guides are hampered by the difficulty to quantify and to translate the surgeon requirements in terms of design/manufacturing specifications, in the context of a complicated communication between physician and engineer. Thus, there is a need of bridging the gap between surgeons’ ideas and needs and their practical materialization in new medical tools. Surgeon-engineer cooperation and information sharing for correctly establishing the correspondence between requirements and design, material and manufacturing issues is mandatory for all the process steps, the use of intelligent decision support systems representing the best solution for overcoming the miscommunication problems and ensuring a degree of automation to a design process which otherwise has to be totally resumed for each patient/clinical case.

In this context, the project proposes the development of an e-health platform which provides, in a collaborative environment, all the necessary knowledge and computer-aided tools for translating the surgeons’ needs in technical specifications required for the design and manufacturing of patient specific guides for orthopedic surgery.

The surgical needs are structured using different sets of questions adapted to the intervention type. The answers to these questionnaires will support capturing design intents, as correctly and complete as possible. In this purpose, an inference engine is developed and implemented in the platform. Rules which corroborate medical knowledge and design, material and manufacturing specifications are set in order to be used as input for the inference engine. Moreover, the platform integrates communication tools between surgeon and engineer, needed to solve different situations such as conflicting criteria or eliminate unfeasible designs from early stages. These tools are specific to web communication, but include also a 3D viewer which offers the possibility to visualize the guides’ designs, measure some geometrical features, etc., offering visual aids for collaborative virtual design.

Thus, the design/manufacturing workflow uses as input the patient CT/MRI data, clinical principles, current practices and available evidence incorporated in a medical knowledge database, questionnaires answers, and supplementary information provided through the conversation surgeon-engineer – all these in a “visible” manner using the platform interface, while the design process itself uses and integrates specific knowledge and tools for medical and mechanical modeling. The manufacturing specifications (material, process, surface quality, accuracy etc.) are also deployed from the surgeons input and are adapted based on the surgical specificity and patient characteristics.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator
List of research grants as partner team leader
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects