Publications

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2022
Fonseca, Amândio, Corneliu Cismasiu, and Ildi Cismasiu. "Avaliação da vulnerabilidade sísmica de um edifício pombalino através de análise dinâmica incremental." Jornadas Portuguesas de Engenharia de Estruturas (JPEE). Lisboa: LNEC, APEE, GPBE, SPES, 2022. art_jpee2022_266_afccic_v8.pdf
Gomes, G. J., V. J. G. Lúcio, and C. Cismasiu. "Development of a high-performance blast energy-absorbing system for building structures." AuxDefense2022 - 3rd World Conference on Advanced Materials for Defense. Guimarães, Portugal 2022.
Rebelo, Hugo, and Corneliu Cismasiu. "Análise Comparativa entre Modelos Constitutivos para a Simulação de Elementos Estruturais de Betão Armado sujeitos a Cargas de Explosão." PROTEDES2022. Região Sul da Ordem dos Engenheiros, Lisboa 2022.
Oliveira, Tiago, Pedro Matias, and Corneliu Cismasiu. "Comportamento de painéis de vidro laminado à ação de explosões - Geração de curvas Pressão-Impulso." PROTEDES2022. Região Sul da Ordem dos Engenheiros, Lisboa 2022.
Gomes, G. J., Válter Lúcio, and Corneliu Cismasiu. "Full Scale Blast testing of a High-Performance Energy-Absorbing System." PROTEDES2022. Região Sul da Ordem dos Engenheiros, Lisboa 2022.
Buru, Stefan Marius, Válter Lúcio, and Corneliu Cismasiu. "PROTEDES - Protection of Strategic Buildings Against Blast - Final Report." PROTEDES2022. Região Sul da Ordem dos Engenheiros, Lisboa 2022.
Silva, Pedro, José Nuno Varandas, and Corneliu Cismasiu. "AVALIAÇÃO DA VULNERABILIDADE SÍSMICA DE UM PASSADIÇO PEDONAL PARTINDO DA SUA IDENTIFICAÇÃO MODAL DINÂMICA." TEST&E 2022 3rd Conference on Testing and Experimentation in Civil Engineering Smart Technologies. Campus da Caparica, Portugal 2022. 046.pdf
Oliveira, Tiago, Pedro Matias, and Corneliu Cismasiu. "Análise Experimental e Numérica de Painéis de Vidro Laminado Sujeitos à Ação de Explosões." 4.o ENCONTRO DE I&D EM CIÊNCIAS MILITARES – ECM 2022. Sintra: Academia da Força Aérea, 2022.
2021
Rebelo, H. B., and C. Cismasiu. "Robustness assessment of a deterministically designed sacrificial cladding for structural protection." Engineering Structures. 240 (2021): 112279. AbstractWebsite

Being able to efficiently mitigate the effects of blast loads on structures, sacrificial cladding solutions are increasingly used to protect structural elements from the effects of accidental explosions and/or terrorist attacks. The present study analyses the loss of effectiveness of a deterministically designed sacrificial cladding when variability in the material properties and uncertainties in the mechanical model are considered. The results of an experimental campaign are used to validate the numerical models that allow the deterministic design of a sacrificial cladding which successfully improves the blast resistant capabilities of a given structural element. Nonetheless, it is shown that, taking into account the probabilistic variability of key parameters is of vital importance when designing sacrificial cladding solutions, since, when not properly designed for the structural element it intends to protect, adding a sacrificial cladding might negatively impact its blast resistant capabilities. Additionally, it is concluded that the deterministic approach might be against safety. In the reported case study, when comparing the admissible charge weight yielding from the deterministic and probabilistic approaches, one verifies that the former allows a higher charge weight.

Cismaşiu, Corneliu, Pedro B. S. Silva, José V. Lemos, and Ildi Cismaşiu. "Seismic Vulnerability Assessment of a Stone Arch Using Discrete Elements." International Journal of Architectural Heritage (2021): 1-15. AbstractWebsite
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2020
Santos, F. A., H. Rebelo, M. Coutinho, L. S. Sutherland, C. Cismasiu, I. Farina, and F. Fraternali. "Low velocity impact response of 3D printed structures formed by cellular metamaterials and stiffening plates: PLA vs. PETg." Composite Structures (2020): 113128. AbstractWebsite

This work studies the low-velocity impact response of 3D-printed layered structures made of thermoplastic materials (PLA and PETg), which form sacrificial claddings for impact protection. The analyzed structures are composed of crushable cellular cores placed in between terminal stiffening plates. The cores tessellate either honeycomb hexagonal unit cells, or hexagonal cells with re-entrant corners, with the latter exhibiting auxetic response. The given results highlight that the examined PETg protectors exhibit higher energy dissipation ratios and lower restitution coefficients, as compared to PLA structures that have the same geometry. It is concluded that PETg qualifies as an useful material for the fabrication of effective impact protection gear through ordinary, low-cost 3D printers.

2019
da Silva, Pedro Boto Semblano, Corneliu Cismasiu, and José Vieira de Lemos. "Avaliação da vulnerabilidade sísmica de um arco em alvenaria utilizando o método dos elementos discretos." SÍSMICA 2019 - 11º Congresso Nacional de Sismologia e Enhenharia Sísmica. Lisboa 2019. final_sismica2019.pdf
Rebelo, H. B., D. Lecompte, C. Cismaşiu, A. Jonet, B. Belkassem, and A. Maazoun. "3D printed PLA sacrificial honeycomb cladding blast mitigation." 18th International Symposium for the Interaction of Munitions with Structures (ISIEMS). Panama City Beach, FL, USA 2019.
Rebelo, H. B., D. Lecompte, C. Cismasiu, A. Jonet, B. Belkassem, and A. Maazoun. "Experimental and numerical investigation on 3D printed PLA sacrificial honeycomb cladding." International Journal of Impact Engineering. 131 (2019): 162-173.Website
Rebelo, Hugo Bento, Filipe Amarante dos Santos, Corneliu Cismasiu, and Duarte Santos. "Exploratory study on geodesic domes under blast loads." International Journal of Protective Structures (2019).
2018
Gomes, G., V. Lúcio, C. Cismasiu, and H. Rebelo. "Blast Assessment – A Methodology." ISMS 2018 10th Anniversary Conference: Military Sciences and Future Security Challenges. War Studies University, Warsaw 2018. gomes.pdf
Rebelo, H. B., A. Gregório, P. A. R. Rosa, D. Lecompte, and C. Cismaşiu. "Experimental characterization of 3D-printed PLA under uniaxial high strain-rate loading." AuxDefense 2018 – 1st World Conference on Advanced Materials for Defense. Lisbon 2018. auxdefense_extabstract_v2.pdf
G, Gomes, Lúcio V, Cismasiu C, and Rebelo H. B. "Blast Assessment - uma metodologia de avaliação." Construção Magazine.86 (2018): 18-23.
Amarante dos Santos, Filipe, Corneliu Cismasiu, and Francisco Braz Fernandes. "Cyclic Instability of Shape-Memory Alloys in Seismic Isolation Systems." International Journal of Structural Glass and Advanced Materials Research (2018): 1-14.
Santos, Filipe, Corneliu Cismasiu, Ildi Cismasiu, and Chiara Bedon. "Dynamic Characterisation and Finite Element Updating of a RC Stadium Grandstand." Buildings. 8.10 (2018): 141, 1-19.
Cismasiu, C., J. R. G. Ferreira, and H. B. Rebelo. "Modelação tridimensional de ondas de choque em LS-DYNA." Construção Magazine.86 (2018): 24-28.
Cismaşiu, Corneliu, Filipe Amarante Dos P. Santos, Rui Da Silva A. Perdigão, Vasco M. S. Bernardo, Paulo X. Candeias, Alexandra R. Carvalho, and Luís M. C. Guerreiro. "Seismic Vulnerability Assessment of a RC Pedestrian Crossing." JOURNAL OF EARTHQUAKE ENGINEERING. X.X (2018): 1-19.
2017
Rebelo, Hugo Bento, and Corneliu Cismasiu. "A Comparison between Three Air Blast Simulation Techniques in LS-DYNA." 11th European LS-DYNA Conference 2017. Salzburg, Austria: DYNAMORE, 2017.
Joaquim, Ana, Corneliu Cismasiu, Filipe Santos, and Elsa Caetano. "Estimation of the tensile force in the stay-cables of Salgueiro Maia Bridge using ambient vibration tests." ISDAC2017 - International Symposium on the Dynamics and Aerodynamics of Cables. Porto: FEUP, 2017. artigo_isdac_v5_ec.pdf
Campian, C., M. Pop, C. Cismasiu, T. Josza, and A. Popa. "Seismic retrofitting of an existing steel structure." 17th International Multidisciplinary Scientific GeoConference SGEM 2017. Albena; Bulgaria 2017.