Hybrid finite element thermal modelling of fire protected structural elements strengthened with CFRP laminates

• Type: Article in International Scientific Journal
• Date: 2014

Authors

J. A. Teixeira de Freitas (Author) Other; C. López (Author) Other; P.T. Cuong (Author) Other; Rui Faria (Author) FEUP

Journal

Title: Composite Structures

Vol. 113

Pages: 396-402

ISSN: 0263-8223

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 3 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences > Engineering > Civil engineering > Structural engineering

Associated Projects

UI0717 - PROJECTO ESTRATÉGICO - UI 717 - 2014

Other information

Authenticus ID: P-009-D9M

DOI: 10.1016/j.compstruct.2014.03.021

Abstract (EN): A hybrid formulation of the finite element method, based on the independent approximation of the temperature and heat flux fields, is used in the simulation of the thermal response of a reinforced concrete (RC) beam strengthened with carbon fibre reinforced polymer (CFRP) laminates subjected to the ISO-834 Standard Fire. Domain decomposition is strictly dictated by the adequate representation of geometry and thermo-physical properties, while the approximation of the state variables in each finite element is mainly constrained to adequately simulate the thermal response of the system. This uncoupling of the geometry mapping from the finite element approximation leads to a naturally p-adaptive formulation, well suited to parallelization, which can be implemented on unstructured, coarse meshes of high-degree elements to obtain accurate and numerically stable solutions.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7