Influence of femtolaser notch sharpening technique in the determination of essential work of fracture (EWF) parameters
Impacte
Scholar |
Altres documents de l'autoria: Martínez, A. B.; Segovia, A.; Gamez-Perez, Jose; Maspoch, Maria Lluïsa
Metadades
Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
comunitat-uji-handle4:
INVESTIGACIONAquest recurs és restringit
http://dx.doi.org/10.1016/j.engfracmech.2009.01.015 |
Metadades
Títol
Influence of femtolaser notch sharpening technique in the determination of essential work of fracture (EWF) parametersData de publicació
2009-06Editor
ElsevierISSN
0013-7944Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://www.sciencedirect.com/science/article/pii/S0013794409000277Paraules clau / Matèries
Resum
The fracture behaviour of a 0.5 mm thick ethylene-propylene block copolymer is analyzed using the essential work of fracture method, using DENT-type specimens. The influence of three experimental parameters in the ... [+]
The fracture behaviour of a 0.5 mm thick ethylene-propylene block copolymer is analyzed using the essential work of fracture method, using DENT-type specimens. The influence of three experimental parameters in the technique is evaluated: the effect of the notch sharpening technique, the use of a videoextensometer for monitoring the deformations and the measurement of ligament lengths before or after fracture tests were carried on.
The results showed that the femtosecond pulsed laser ablation technique (femtolaser) produced sharp notches with no plastic deformation ahead of the notch tip, which yield smaller specific essential work of fracture (we) values than in the cases where the notches were sharpened with razor blades. The use of a videoextensometer has allowed removing the viscoelastic energy from the plastic work, with lower values of βwp. The measurement of the ligament lengths before or after the test did not affect the results. [-]
Publicat a
Engineering Fracture Mechanics, 76, 9, p. 1247–1254Drets d'accés
Copyright © 2009 Elsevier Ltd. All rights reserved.
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
Apareix a les col.leccions
- ESID_Articles [483]