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Personne

Thomas Keller

Biographie

EDUCATION

1992 Dr. sc. techn. (PhD)

Swiss Federal Institute of Technology, Zurich (ETH)

1983 Dipl. Bauing. ETH (MS civil engineering)

Swiss Federal Institute of Technology, Zurich (ETH)

EMPLOYMENT

2007-present, Full Professor of Structural Engineering (100%)

Swiss Federal Institute of Technology, Lausanne (EPFL)

Civil Engineering Institute

1998-2007, Associate Professor of Structural Engineering (80/100%)

Swiss Federal Institute of Technology, Lausanne (EPFL)

Structural Engineering Institute

Foundation of CCLab in 2000

1996-1998, Assistant Professor of Structural Engineering (50%)

Swiss Federal Institute of Technology, Zurich (ETH)

Department of Architecture

1992-2004, Senior Project Engineer and Joint Owner

Engineering offices in Zug and Zurich

1990-1992, Research Scientist

Swiss Federal Institute of Technology, Zurich (ETH)

Structural Engineering Institute

1986-1990, Project Engineer

Architecture and engineering office Calatrava, Zurich

1983-1986, Teaching and Research Assistant

Swiss Federal Institute of Technology, Zurich (ETH)

Structural Engineering Institute

Official source

https://people.epfl.ch/thomas.keller?lang=fr

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Publications associées (346)

Design of fibre-polymer composite structures – European Technical Specification: Fatigue and detailing

Thomas Keller

2022

Chargement

Mechanical Properties of FRP Materials at Elevated Temperature. Definition of a Temperature Conversion Factor for Design in Service Conditions

Mário Alexandre De Jesus Garrido, Thomas Keller

One of the main concerns about the use of fibre reinforced polymer (FRP) materials in civil engineering structural applications is the potential reduction of their stiffness- and strength-related properties when exposed to elevated temperature. The first part of this paper presents an assessment of existing design guidelines for FRP structures, regarding the recommendations they provide about the reduction of FRP mechanical properties at elevated temperature. The second part of this paper presents a survey of test data available in the literature concerning mechanical tests at elevated temperature in FRP materials produced with different fibres, resins, shapes and manufacturing methods. The results of the survey show that the provisions available in existing design guidelines are not always accurate; moreover, in some cases, they are even non-conservative. Based on this assessment, the third part of the paper presents a method to define a temperature conversion factor for design purposes, consistent with the partial factor method of the Eurocodes, which was calibrated with the results included in the database. The method proposed takes into account not only the maximum service temperature experienced by the FRP material, but also its glass transition temperature; the method considers also the type of mechanical property, namely if it is either fibre- or matrix-dominated. The conversion factors obtained applying the method proposed presented a good agreement with the test data available in the literature.

SPRINGER-VERLAG SINGAPORE PTE LTD2022

Chargement

Rate dependent adhesive modeling of ductile adhesive composite joints

Ghazaleh Eslami, Thomas Keller

2022

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