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Anastasios Vassilopoulos

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Publications associées (184)

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

Thomas Keller, Anastasios Vassilopoulos, Congzhe Wang

The two-dimensional (2D) delamination growth in composite laminates under the Mode-II fracture condition was experimentally investigated using a novel set-up. Circular plate specimens with a centrally embedded pre-crack of two sizes were semi-clamped along ...

2023

CRACK SHIELDING MECHANISMS OF INTERLAYERED EPOXY MATERIALS UNDER QUASI-STATIC AND FATIGUE LOADING

Anastasios Vassilopoulos, Dharun Vadugappatty Srinivasan

This research explores the capability of PEI and PVDF thermoplastic interlayers to arrest cracks in epoxy materials modified with short-glass fibers and core-shell rubber particles. It also investigates the effect of interlayer position, the number of inte ...

Queen's University Belfast2023

Effects of core air gaps and steel inserts on thermomechanical response of GFRP-balsa sandwich panels subjected to fire

Thomas Keller, Anastasios Vassilopoulos, Niloufar Vahedi

Composite sandwich panels composed of a balsa core and glass fiber-reinforced polymer (GFRP) face sheets may offer attractive applications for building slabs and bridge decks. Such composite panels may contain air-filled gaps (caused by initial defects or ...

ELSEVIER SCI LTD2023

Floating platform for a wind turbine

Anastasios Vassilopoulos

A floating platform for a wind turbine comprising a vertically arranged support; a toroidal body arranged horizontally and coaxially around said support; a plurality of connection elements which extends radially to connect the support to the toroidal body, ...

2023

Fatigue behavior and life prediction of wind turbine blade composite materials

Anastasios Vassilopoulos

Fatigue life prediction of wind turbine rotor blades is a very challenging task, as their failure is led by different failure types that act synergistically. Inherent defects like wrinkles, fiber misalignments, and voids that can be introduced during fabri ...

Woodhead Publishing (Elsevier)2023

Dataset for the hybrid non-toughened and toughened epoxy adhesive properties

Anastasios Vassilopoulos, Dharun Vadugappatty Srinivasan

In this article, the manufacturing and toughening effects on the material properties of epoxy adhesives used in wind tur-bine rotor blades are presented. Different adhesive materi-als are developed by combining SPABONDTM 820HTA (non-toughened) and SPABONDT ...

ELSEVIER2023

INFLUENCE OF VOIDS ON THICK DCB JOINT BEHAVIOR

Véronique Michaud, Anastasios Vassilopoulos, Jialiang Fan

The influence of voids on the quasi-static Mode I fracture performance of thick adhesive joints was investigated in this article. Double Cantilever Beam (DCB) joints were manufactured with glass fiber reinforced epoxy adherends and SikaPower®-830 epoxy adh ...

2023

TWO-DIMENSIONAL MODE-II DELAMINATION GROWTH IN COMPOSITE LAMINATES

Thomas Keller, Anastasios Vassilopoulos, Congzhe Wang

2023

Fatigue dataset of hybrid non-toughened and toughened epoxy adhesives

Anastasios Vassilopoulos

In this article, four different structural epoxy adhesives such as SPABOND (TM) 820HTA (non-toughened), SPABOND (TM) 840HTA (toughened) adhesives, and their two hybrid combinations are fabricated using a manual mixing method. Quasi-static tensile experimen ...

Elsevier2023

Quasi-static and fatigue performance of non toughened and toughened adhesives for wind turbine blades

Anastasios Vassilopoulos, Dharun Vadugappatty Srinivasan

2022

Effects of core air gaps and steel inserts on thermal response of GFRP-balsa sandwich panels subjected to fire

Thomas Keller, Anastasios Vassilopoulos, Niloufar Vahedi

Sandwich systems composed of combustible glass fiber-reinforced polymer (GFRP) face sheets and balsa cores must fulfill fire resistance requirements if used, for instance, in bridge or building construction. Air gaps and steel inserts in the balsa core, th ...

ELSEVIER SCI LTD2022

Proceedings of the 20th European Conference on Composite Materials - Composites Meet Sustainability (Vol 1-6)

Anastasios Vassilopoulos

This collection gathers all the articles that were submitted and presented at the 20th European Conference on Composite Materials (ECCM20) which took place in Lausanne, Switzerland, June 26-30,2022. ECCM20 is the 20th edition of a conference series having ...

Composite Construction Laboratory2022

A 5m lightweight composite atmospheric tower for extreme environments

Anastasios Vassilopoulos, Julia Schmale, Romain Pascal T van Wassenhove, Andrea Baccarini

2022

Fatigue life prediction of GFRP laminates using progressive damage modeling considering viscoelastic behavior

Anastasios Vassilopoulos, Seyed Shayan Khalooei Tafti

2022

MODE-I FRACTURE TOUGHNESS OF INTERLAYERED EPOXY ADHESIVES

Anastasios Vassilopoulos, Dharun Vadugappatty Srinivasan

2022

The challenges of quasi-static and fatigue experiments of structural adhesives

Anastasios Vassilopoulos, Valentin Perruchoud

This paper presents the results of an experimental campaign designed specifically to investigate unexpected and unwanted failures observed during the quasi-static and fatigue tensile loading of structural adhesives. Simple finite element models were also d ...

ELSEVIER SCI LTD2022

Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview

Anastasios Vassilopoulos, José Manuel de Sena Cruz

The development of new adhesives has allowed to expand the application of bonding into the most diverse industrial fields. This review article presents the commonly used experimental methods for the investigation of mechanical performance of adhesively bon ...

TAYLOR & FRANCIS LTD2022

Investigation of bamboo nodes structural characteristics with X-ray micro-CT imaging

Pascal Turberg, Anastasios Vassilopoulos, Judith Hélène Gouin

2022

Investigation of bulk adhesive material and thick adhesive joints for wind turbine applications

Véronique Michaud, Anastasios Vassilopoulos, Jialiang Fan

2022

Clip connector device and uses thereof

Anastasios Vassilopoulos

A removable clip connection device particularly adapted to bamboo structures is disclosed, as well as assemblies formed with the same and uses thereof. The clip connection features a base (100) located at a first end (10) of the device, said base having a ...

2022

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