Publications de Thomas Keller | EPFL Graph Search

Methodology for Calibrating Fatigue Load Models for Composite Road Bridges

Current fatigue load models (FLMs) for road bridges are typically calibrated based on steel and reinforced-concrete bridges. These models are not likely applicable to fiber–polymer composite bridges, primarily because the damage rate—defined as the slope o ...

2025

Composite engineering structures in seawater − Review of durability and environmental performance

Thomas Keller, Tara Habibi

Shoreline protection systems composed of fibre-polymer composite structures immersed in seawater may efficiently contribute to mitigate impacts of climate change, such as more frequent and severe coastal flooding and storm surges, and significant rises of ...

2025

Design of fibre-polymer composite structures: Commentary to European technical specification CEN/TS 19101: 2022

Thomas Keller

The European Technical Specification CEN/TS 19101:2022, "Design of Fibre-Polymer Composite Structures", constitutes a milestone for the use of fibre-polymer composites in civil engineering works. This book comprises around 400 background reports covering t ...

CRC Press2025

Numerical investigation of two-dimensional Mode-II delamination in composite laminates

Thomas Keller, Anastasios Vassilopoulos, Congzhe Wang

Existing standards for delamination tests on composite materials typically employ one-dimensional (1D) beam specimens. However, such specimens may not represent real delamination scenarios in composite structures, where cracks tend to propagate in two dime ...

Elsevier Sci Ltd2024

Overview and Aspects of the European Technical Specification CEN/TS 19101:2022, "design of Fibre-Polymer Composite Structures"

Thomas Keller

In November 2022, the European Committee for Standardization (CEN) published the Technical Specification CEN/TS 19101:2022, "Design of Fibre-Polymer Composite Structures."These design provisions, which follow the philosophy and partial factor format of the ...

2024

A novel fatigue life prediction methodology based on energy dissipation in viscoelastic materials, synergistic effects of stress level, stress ratio, and temperature

Thomas Keller, Lulu Liu, Abdolvahid Movahedirad

This work introduces a new methodology to predict the fatigue life of viscoelastic materials by considering the creep effect on fatigue behavior under the concurrent effects of stress level, stress ratio, and temperature. The model established based on the ...

2024

Tension-tension fatigue behavior of basalt composite hybrid joints

Thomas Keller, Lulu Liu, Xin Wang

The tension–tension fatigue behavior of pseudo-ductile hybrid bonded-bolted double lap basalt composite joints, composed of pseudo-ductile adhesives and adherends with multi-directional fiber architecture, was experimentally investigated. The fatigue damag ...

2024

Composites in Structural Engineering and Architecture

Thomas Keller

This monograph is about the author’s 25-year journey as a pioneer, scientist, designer, and lecturer in the field of fibre-polymer composites, applied to structural engineering and architecture. Composites are construction materials that offer unique prope ...

EPFL Press English Imprint2024

Short-term behavior of glass fiber-polymer composite bending-active elastica beam under service load application

Thomas Keller, Tara Habibi, Landolf-Giosef-Anastasios Rhode-Barbarigos

Bending-active elastica beam is a structural configuration that is based on the elastic deformation of an initially straight beam. This deformation occurs when horizontal displacements are applied to a sliding support, causing the beam to bend into an arch ...

2024

Fire Dynamic Responses of Fiber-Reinforced Polymer Composite Buildings

Thomas Keller

Glass fiber-reinforced polymer (GFRP) composites have been used in civil construction because of their high strength, lightweight, and corrosion resistance. However, their thermal sensitivity due to the polymer resin requires further understanding of the f ...

Asce-Amer Soc Civil Engineers2024