Fracture Toughness Reliability in Polycarbonate : Notch Sharpening Effects
Joint Authors
Rodríguez, J.
Martínez, A. B.
Salazar, A.
Source
Indian Journal of Materials Science
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-22
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
The effect of the notch sharpening on the fracture toughness obtained under linear elastic fracture mechanics has been analyzed in an amorphous polycarbonate.
The samples for fracture characterization were sharpened via the traditional contact steel razor blade technique and the noncontact femtosecond laser ablation technique.
The values of the fracture toughness of the specimens sharpened through femtosecond laser ablation were lower than those measured on samples sharpened using a steel razor blade.
Moreover, the former was in plane strain state, but the latter did not verify the size criterion.
The damage produced ahead of the crack tip through plastic deformation in the steel razor blade sharpened samples over the lack of damage in the femtolaser sharpened specimens explains the differences in the fracture toughness.
It has been proven that there is a relationship between the plastic deformation at the crack front and the stress state.
This has been assessed through the application of a fracture criterion for dissipative systems with small scale yielding.
American Psychological Association (APA)
Salazar, A.& Rodríguez, J.& Martínez, A. B.. 2013. Fracture Toughness Reliability in Polycarbonate : Notch Sharpening Effects. Indian Journal of Materials Science،Vol. 2013, no. 2013, pp.1-4.
https://search.emarefa.net/detail/BIM-453010
Modern Language Association (MLA)
Salazar, A.…[et al.]. Fracture Toughness Reliability in Polycarbonate : Notch Sharpening Effects. Indian Journal of Materials Science No. 2013 (2013), pp.1-4.
https://search.emarefa.net/detail/BIM-453010
American Medical Association (AMA)
Salazar, A.& Rodríguez, J.& Martínez, A. B.. Fracture Toughness Reliability in Polycarbonate : Notch Sharpening Effects. Indian Journal of Materials Science. 2013. Vol. 2013, no. 2013, pp.1-4.
https://search.emarefa.net/detail/BIM-453010
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-453010