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Hybrid glass mat reinforced polypropylene-montmorillonite nanocomposites

Publications associées (30)

Post-wrinkling behavior of webs in GFRP cell-core sandwich structures

Thomas Keller, Behzad Dehghan Manshadi, Anastasios Vassilopoulos

Similarly to the post-buckling behavior of steel girder webs, the post-wrinkling behavior of glass fiber reinforced polymer (GFRP) cell-core sandwich webs can increase their ultimate shear strength. Post wrinkling is, however, different from post-buckling ...

Elsevier2016

Effect of service temperature on the shear creep response of rigid polyurethane foam used in composite sandwich floor panels

Thomas Keller, Mário Alexandre De Jesus Garrido

This paper presents an experimental and analytical study about the effect of temperature on the shear creep response of a rigid polyurethane (PUR) foam within the scope of sandwich panel application in building floors. Shear creep tests were carried out on ...

Elsevier2016

Scaling for hard-sphere colloidal glasses near jamming

Eric DeGiuli

Hard-sphere colloids are model systems in which to study the glass transition and universal properties of amorphous solids. Using covariance matrix analysis to determine the vibrational modes, we experimentally measure here the scaling behavior of the dens ...

IOP Publishing - EPL Association2016

Biodegradable HEMA-based hydrogels with enhanced mechanical properties

Dominique Pioletti, Mohamadreza Nassajian Moghadam

Hydrogels are widely used in the biomedical field. Their main purposes are either to deliver biological active agents or to temporarily fill a defect until they degrade and are followed by new host tissue formation. However for this latter application, bio ...

Wiley-Blackwell2016

A Monolithic Micro-Tensile Tester for Investigating Silicon Dioxide Polymorph Micromechanics, Fabricated and Operated Using a Femtosecond Laser

Yves Bellouard, Christos Edouardos Athanasiou

Mechanical testing of materials at the microscales is challenging. It requires delicate procedures not only for producing and handling the specimen to be tested, but also for applying an accurate and controlled force. This endeavor is even more challenging ...

MDPI2015

Temperature effects on material properties and structural response of polymer matrix composites

Wei Sun

Structural components used in civil engineering applications are often subjected to compressive loads. Unlike the tensile strength of fiber-reinforced polymer (FRP) materials, their compressive strength is resin-dominated, exhibiting lower values and more ...

EPFL2015

Analytical modeling of local stresses at Balsa/timber core joints of FRP sandwich structures

Julia De Castro San Roman Fest, Thomas Keller, Anastasios Vassilopoulos, Michael Osei-Antwi

In order to optimize sandwich structures, core materials of different density and thus different stiffness and strength are often combined. The material discontinuities at joints of dissimilar core materials may lead to abrupt changes of the shear angles a ...

Elsevier2014

Multi-factorial models of a carbon fibre/epoxy composite subjected to accelerated environmental ageing

Joël Cugnoni, Thomas Gmür, Enrique René Guzman Solares

Among materials being introduced in the aerospace industry, the carbon fibre reinforced plastics (CFRP) have a place of privilege because of their exceptional stiffness-to-mass ratio. However, the polymer-based matrix is vulnerable to damages by environmen ...

Elsevier2014

Structural performance of complex core systems for FRP-balsa composite sandwich bridge decks

Michael Osei-Antwi

Based on current fiber-reinforced polymer (FRP) composite construction principles, FRP decks fall into two categories: pultruded decks and sandwich decks. Sandwich decks comprise face sheets and either honeycombs or foams reinforced with internal FRP webs ...

EPFL2014

Angled microfiber arrays as low-modulus, low Poisson's ratio compliant substrates

This paper presents a novel fabrication method for producing high-aspect-ratio, angled polymer microfiber arrays by directional pulling of polyethylene from low-aspect-ratio, microporous polycarbonate templates. These arrays represent a novel substrate for ...

Iop Publishing Ltd2014