Till Vallée

2008

Modeling of stiffness properties of FRP composites under elevated and high temperatures

When subjected to elevated and high temperatures, the mechanical properties of FRP composites, such as the E- modulus and viscosity, experience significant changes. At a certain temperature, a composite material can be considered a mixture of materials tha ...

2008

Modeling of thermal responses for FRP composites under elevated and high temperatures

Based on temperature-dependent thermo-physical property models developed previously, a one-dimensional model was proposed to predict the thermal responses of FRP composites in time and space domain, up to high temperatures. An implicit finite differential ...

2008

Function-integrated GFRP sandwich roof structure – Experimental validation of design

2008

Dynamic behavior of an all-FRP pedestrian bridge

2007

Bridge deck from FRP-composites and ligtweight and high performance concrete

2007

Flexural behavior of a hybrid FRP and lightweight concrete sandwich bridge deck

This paper presents a new concept for a lightweight hybrid- FRP bridge deck. The sandwich construction consists of three layers: a fiber-reinforced polymer composite (FRP) sheet with T-upstands for the tensile skin, lightweight concrete (LC) for the core a ...

2007

Long-term performance of the Pontresina GFRP pedestrian bridge

2007

Modeling of thermo-physical properties for FRP composites under elevated and high temperatures

A decomposition model for resin in glass fiber-reinforced polymer composites (GFRP) under elevated and high temperature was derived from chemical kinetics. Kinetic parameters were determined by four different methods using thermal gravimetric data at diffe ...

2007

Modeling of thermo-physical properties and thermal responses for FRP composites in fire

2007

Function-integrated GFRP sandwich roof structure

2007

Long-term performance of a glass fiber-reinforced polymer truss bridge

In the summer of 2005, after eight years of use as a temporary bridge during the winter, the Pontresina Bridge for pedestrians was transported to the Swiss Federal Institute of Technology Lausanne for a detailed assessment of the structural safety, service ...

2007

A Weibull-based method to predict the strength of adhesivly bonded joints of pultruded FRPs

2006

A new concept for a ligthweight hybrid-FRP bridge deck

2006

Probabilistic strength prediction for double lap joints composed of pultruded GFRP profiles, part II: Strength prediction

A probabilistic method for the strength prediction of adhesively bonded double lap joints composed of pultruded GFRP adherends subjected to quasi-static axial tensile loading is presented. The prediction method is based on the experimentally determined mat ...

2006

Probabilistic strength prediction for double lap joints composed of pultruded GFRP profiles, part I: Experimental and numerical investigations

Experimental and numerical investigations were carried out on adhesively bonded full-scale double lap joints composed of pultruded GFRP profiles with relatively thick adhesive layers. Thick adhesive layers are often used in infrastructure applications in o ...

2006

Adhesively bonded lap joints from pultruded GFRP profiles. Part III: Effects of chamfers