TY  - GEN
A1  - Loupos, Konstantinos
A1  - Damigos, Yannis
A1  - Tsertou, Athanasisa
A1  - Amditis, Angelos
A1  - Lenas, Sotiris-Angelos
A1  - Chatziandreoglou, Chistos
A1  - Malliou, Christina
A1  - Tsaoussidis, Vassilis
A1  - Gerhard, Reimund
A1  - Rychkov, Dmitry
A1  - Wirges, Werner
A1  - Frankenstein, Bernd
A1  - Camarinopoulos, Stephanos
A1  - Kalidromitis, Vassilis
A1  - Sanna, C.
A1  - Maier, Stephanos
A1  - Gordt, A.
A1  - Panetsos, P.
T1  - Innovative soft-material sensor, wireless network and assessment software for bridge life-cycle assessment
T2  - Life-cycle analysis and assessmanet in civil engineering : towards an integrated vision
N2  - Nowadays, structural health monitoring of critical infrastructures is considered as of primal importance especially for managing transport infrastructure however most current SHM methodologies are based on point-sensors that show various limitations relating to their spatial positioning capabilities, cost of development and measurement range. This publication describes the progress in the SENSKIN EC co-funded research project that is developing a dielectric-elastomer sensor, formed from a large highly extensible capacitance sensing membrane and is supported by an advanced micro-electronic circuitry, for monitoring transport infrastructure bridges. The sensor under development provides spatial measurements of strain in excess of 10%, while the sensing system is being designed to be easy to install, require low power in operation concepts, require simple signal processing, and have the ability to self-monitor and report. An appropriate wireless sensor network is also being designed and developed supported by local gateways for the required data collection and exploitation. SENSKIN also develops a Decision-Support-System (DSS) for proactive condition-based structural interventions under normal operating conditions and reactive emergency intervention following an extreme event. The latter is supported by a life-cycle-costing (LCC) and life-cycle-assessment (LCA) module responsible for the total internal and external costs for the identified bridge rehabilitation, analysis of options, yielding figures for the assessment of the economic implications of the bridge rehabilitation work and the environmental impacts of the bridge rehabilitation options and of the associated secondary effects respectively. The overall monitoring system will be evaluated and benchmarked on actual bridges of Egnatia Highway (Greece) and Bosporus Bridge (Turkey).
Y1  - 2019
SN  - 978-1-315-22891-4
SN  - 978-1-138-62633-1
SP  - 2085
EP  - 2092
PB  - CRC Press, Taylor & Francis Group
CY  - Boca Raton
ER  - 
TY  - GEN
A1  - Nguyen, Quyet Doan
A1  - Wang, Jingwen
A1  - Rychkov, Dmitry
A1  - Gerhard, Reimund
T1  - Depth Profile and Transport of Positive and Negative Charge in Surface (2-D) and Bulk (3-D) Nanocomposite Films
T2  - 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE 2019)
N2  - In the present study, the charge distribution and the charge transport across the thickness of 2- and 3-dimensional polymer nanodielectrics was investigated. Chemically surface-treated polypropylene (PP) films and low-density polyethylene nanocomposite films with 3 wt % of magnesium oxide (LDPE/MgO) served as examples of 2-D and 3-D nanodielectrics, respectively. Surface charges were deposited onto the non-metallized surfaces of the one-side metallized polymer films and found to broaden and to thus enter the bulk of the films upon thermal stimulation at suitable elevated temperatures. The resulting space-charge profiles in the thickness direction were probed by means of Piezoelectrically-generated Pressure Steps (PPSs). It was observed that the chemical surface treatment of PP which led to the formation of nano-structures or the use of bulk nanoparticles from LDPE/MgO nanocomposites enhance charge trapping on or in the respective polymer films and also reduce charge transport inside the respective samples.
KW  - LDPE nanocomposites
KW  - MgO nanoparticles
KW  - Space charge
KW  - Charge transport
KW  - Charge stability
KW  - Acoustic probing of electric-field profiles
KW  - Piezoelectrically generated Pressure Steps (PPSs)
Y1  - 2019
SN  - 978-1-5386-8434-4
SN  - 978-1-5386-8435-1
U6  - https://doi.org/10.1109/ICEMPE.2019.8727256
SP  - 298
EP  - 300
PB  - IEEE
CY  - New York
ER  -