Micro-computed tomography (micro-CT) quantification of erosion wear and delamination of carbon fiber reinforced polymers (CFRP)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F25%3A00636260" target="_blank" >RIV/68081723:_____/25:00636260 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68145535:_____/25:00636260 RIV/61989100:27230/25:10259476

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0043164825002261?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0043164825002261?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.wear.2025.205957" target="_blank" >10.1016/j.wear.2025.205957</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Micro-computed tomography (micro-CT) quantification of erosion wear and delamination of carbon fiber reinforced polymers (CFRP)

Popis výsledku v původním jazyce

This research examines erosion wear on the surface and deeper layers of Carbon Fiber Reinforced Polymer (CFRP) materials using micro-computed tomography (μ-CT). CFRP composites are favored in the energy sector for wind turbine blades due to their high specific strength, rigidity, fatigue resistance, and design versatility. However, they are susceptible to erosion wear, which can degrade the aerodynamic efficiency of blade edges. This study employed a pulsating water jet at a 40 kHz frequency to generate droplets, simulating severe weathering conditions akin to heavy rain in an accelerated erosion testing mode. The CFRP samples were scanned before and after exposure to the pulsating water jet (PWJ) for durations ranging from 1 to 15 s. The progression of erosion damage was assessed using confocal, optical, and scanning electron microscopy, along with μ-CT for detailed comparison. The erosion pattern was found to depend on the initial orientation of the fiber layers. Just 1 s of exposure, equivalent to 40,000 impacts, was sufficient to penetrate the first fiber layer to a depth of approximately 250 μm. Extended exposure increased the width and depth of erosion, affecting additional fiber layers. Delamination primarily followed the direction of the first fiber layer, with the top layer lifting and fibers severing due to induced shear stress below the surface. This study's approach shows promise in quickly predicting and measuring erosive wear on composites, enhancing understanding of solid-liquid interactions during accelerated erosion testing.

Název v anglickém jazyce

Micro-computed tomography (micro-CT) quantification of erosion wear and delamination of carbon fiber reinforced polymers (CFRP)

Popis výsledku anglicky

This research examines erosion wear on the surface and deeper layers of Carbon Fiber Reinforced Polymer (CFRP) materials using micro-computed tomography (μ-CT). CFRP composites are favored in the energy sector for wind turbine blades due to their high specific strength, rigidity, fatigue resistance, and design versatility. However, they are susceptible to erosion wear, which can degrade the aerodynamic efficiency of blade edges. This study employed a pulsating water jet at a 40 kHz frequency to generate droplets, simulating severe weathering conditions akin to heavy rain in an accelerated erosion testing mode. The CFRP samples were scanned before and after exposure to the pulsating water jet (PWJ) for durations ranging from 1 to 15 s. The progression of erosion damage was assessed using confocal, optical, and scanning electron microscopy, along with μ-CT for detailed comparison. The erosion pattern was found to depend on the initial orientation of the fiber layers. Just 1 s of exposure, equivalent to 40,000 impacts, was sufficient to penetrate the first fiber layer to a depth of approximately 250 μm. Extended exposure increased the width and depth of erosion, affecting additional fiber layers. Delamination primarily followed the direction of the first fiber layer, with the top layer lifting and fibers severing due to induced shear stress below the surface. This study's approach shows promise in quickly predicting and measuring erosive wear on composites, enhancing understanding of solid-liquid interactions during accelerated erosion testing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/GA23-05372S" target="_blank" >GA23-05372S: Povrchová a podpovrchová eroze způsobená vícenásobným dopadem kapek</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Wear

ISSN

0043-1648

e-ISSN

1873-2577

Svazek periodika

570

Číslo periodika v rámci svazku

JUN

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

205957

Kód UT WoS článku

001509114000019

EID výsledku v databázi Scopus

2-s2.0-85219001700