Publications associées à Variations on R-curves and traction-separation relations in DCB specimens loaded under end opening forces or pure moments

Novel multi-crack damage approach for pultruded fiber-polymer web-flange junctions

This paper aims to propose a novel approach to assess the multi-crack behavior of layered fiber-polymer composites. The Compliance and R-curves generated from this novel approach were useful to understand the multiple delamination process, enabling to eval ...

London2023

New SIDH Countermeasures for a More Efficient Key Exchange

Tako Boris Fouotsa, Andrea Basso

The Supersingular Isogeny Diffie-Hellman (SIDH) protocol has been the main and most efficient isogeny-based encryption protocol, until a series of breakthroughs led to a polynomial-time key-recovery attack. While some countermeasures have been proposed, th ...

Springer2023

A comparative study of mode I delamination behavior of unidirectional glass fiber-reinforced polymers with epoxy and polyurethane matrices using two methods

John Botsis, Georgios Pappas

The mode I delamination behavior of a unidirectional glass-fiber reinforced polymer with a prototype elasto-plastic polyurethane matrix (GF/PU) was investigated and compared with that of glass/epoxy (GF/EP) using double cantilever beam specimens. Fracture ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Many touchings force many crossings

János Pach

Given n continuous open curves in the plane, we say that a pair is touching if they have finitely many interior points in common and at these points the first curve does not get from one side of the second curve to its other side. Otherwise, if the two cur ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2019

Micromechanical study on the origin of fiber bridging under interlaminar and intralaminar mode I failure

John Botsis, Georgios Pappas, Fernando Naya Montans

Fiber reinforced polymers (FRPs) subjected to mode I fracture show important toughening due to the development of large scale bridging (LSB). Experimental studies of this phenomenon in unidirectional carbon/epoxy laminates using double cantilever beam spec ...

ELSEVIER SCI LTD2019

Studies on Traction Separation Relations in Fracture of Layered Composites

Georgios Pappas

Layered fiber reinforced composite materials are prone to fracture in planes parallel to the direction of fibers leading to extensive delamination or intralaminar fracture. This phenomenon of crack propagation is frequently accompanied by significant incre ...

EPFL2017

Distinct Distances on Algebraic Curves in the Plane

János Pach, Frank de Zeeuw

Let S be a set of n points in R-2 contained in an algebraic curve C of degree d. We prove that the number of distinct distances determined by S is at least c(d)n(4/3), unless C contains a line or a circle. We also prove the lower bound c(d)' min{m(2/3)n(2/ ...

Cambridge Univ Press2017

We describe a methodology for the interactive definition of curves and motion paths using a stochastic formulation of optimal control. We demonstrate how the same optimization framework can be used in different ways to generate curves and traces that are g ...

2017

Damage recovery after impact in E-glass reinforced poly(epsilon-caprolactone)/epoxy blends

Véronique Michaud, Amaël Maximilien Cohades

Damage recovery after low-velocity impact has been assessed in woven E-glass fibre-reinforced polymer composites with an epoxy matrix and a blend of epoxy and 25 vol% of poly(e-caprolactone) (PCL). Impact was carried out at three energy levels (8.5, 17, 34 ...

Elsevier2017

An Inner-Product Calculus for Periodic Functions and Curves

Michaël Unser, Daniel Andreas Schmitter, Anaïs Laure Marie-Thérèse Badoual

Our motivation is the design of efficient algorithms to process closed curves represented by basis functions or wavelets. To that end, we introduce an inner-product calculus to evaluate correlations and

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distances between such curves. In partic ...

2016

Variations on R-curves and traction-separation relations in DCB specimens loaded under end opening forces or pure moments

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Novel multi-crack damage approach for pultruded fiber-polymer web-flange junctions

New SIDH Countermeasures for a More Efficient Key Exchange

A comparative study of mode I delamination behavior of unidirectional glass fiber-reinforced polymers with epoxy and polyurethane matrices using two methods

Many touchings force many crossings

Micromechanical study on the origin of fiber bridging under interlaminar and intralaminar mode I failure

Studies on Traction Separation Relations in Fracture of Layered Composites

Distinct Distances on Algebraic Curves in the Plane

Damage recovery after impact in E-glass reinforced poly(epsilon-caprolactone)/epoxy blends

An Inner-Product Calculus for Periodic Functions and Curves

New SIDH Countermeasures for a More Efficient Key Exchange

Novel multi-crack damage approach for pultruded fiber-polymer web-flange junctions

Micromechanical study on the origin of fiber bridging under interlaminar and intralaminar mode I failure

Distinct Distances on Algebraic Curves in the Plane

A comparative study of mode I delamination behavior of unidirectional glass fiber-reinforced polymers with epoxy and polyurethane matrices using two methods

Many touchings force many crossings

Studies on Traction Separation Relations in Fracture of Layered Composites

Damage recovery after impact in E-glass reinforced poly(epsilon-caprolactone)/epoxy blends

An Inner-Product Calculus for Periodic Functions and Curves