Acoustic emission for interlaminar toughness testing of CFRP: Evaluation of the crack growth due to burst analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F18%3A00481723" target="_blank" >RIV/68145535:_____/18:00481723 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1359836817313720" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1359836817313720</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compositesb.2017.10.012" target="_blank" >10.1016/j.compositesb.2017.10.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Acoustic emission for interlaminar toughness testing of CFRP: Evaluation of the crack growth due to burst analysis

Popis výsledku v původním jazyce

The paper deals with interlaminar fracture toughness testing of three different types of specimens from unidirectionalnaerospace laminate M21/T800S (autoclaved and hot pressed) and the woven fabric ECG Carbon 12knwith respect to the ASTM Standard D5582. Simultaneously the materials were monitored by acoustic emission tonevaluate the results via burst analysis. CFRP-specimens were mounted in a CNC-machining center by a choppernwire. The lower wire was fixed at a load cell (KISTLER 9257 B) to measure the force development. Standardnspecification the movement speed in z-direction was set to 5 mm/min. The acoustic emission sensor iMPact XSnwith accuracy is±5% with a reference sensitivity of>1200 pC/N was fixed on the DCB-specimens with a twosidednadhesive tape with thickness of 0,5 mm. The sensor iMPact XS has a frequency range from 1 mHz up ton1 MHz limited to a maximum of 500 kHz. It has been found that the material properties correlate well with thenresults of the acoustic emission analysis. The burst rate reflects the manufacturing processes as it is influencedndirectly by the fibre bridging which occurs particularly for autoclaved composites. In contrast, the burst energynis not affected by the manufacturing process. It is only depending from the matrix properties.

Název v anglickém jazyce

Acoustic emission for interlaminar toughness testing of CFRP: Evaluation of the crack growth due to burst analysis

Popis výsledku anglicky

The paper deals with interlaminar fracture toughness testing of three different types of specimens from unidirectionalnaerospace laminate M21/T800S (autoclaved and hot pressed) and the woven fabric ECG Carbon 12knwith respect to the ASTM Standard D5582. Simultaneously the materials were monitored by acoustic emission tonevaluate the results via burst analysis. CFRP-specimens were mounted in a CNC-machining center by a choppernwire. The lower wire was fixed at a load cell (KISTLER 9257 B) to measure the force development. Standardnspecification the movement speed in z-direction was set to 5 mm/min. The acoustic emission sensor iMPact XSnwith accuracy is±5% with a reference sensitivity of>1200 pC/N was fixed on the DCB-specimens with a twosidednadhesive tape with thickness of 0,5 mm. The sensor iMPact XS has a frequency range from 1 mHz up ton1 MHz limited to a maximum of 500 kHz. It has been found that the material properties correlate well with thenresults of the acoustic emission analysis. The burst rate reflects the manufacturing processes as it is influencedndirectly by the fibre bridging which occurs particularly for autoclaved composites. In contrast, the burst energynis not affected by the manufacturing process. It is only depending from the matrix properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Composites Part B-Engineering

ISSN

1359-8368

e-ISSN

—

Svazek periodika

136

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

55-62

Kód UT WoS článku

000425077600007

EID výsledku v databázi Scopus

2-s2.0-85032200414