INVESTIGADORES
FRONTINI patricia Maria
artículos
Título:
A Simple Method for J-R Curve Determination in ABS Polymers
Autor/es:
C. BERNAL; A.N. CASSANELLI; PATRICIA M. FRONTINI
Revista:
POLYMER TESTING
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 1995 vol. 14 p. 85 - 96
ISSN:
0142-9418
Resumen:
The objective of this paper is to investigate the applicability of a very simple newmethod, based on load separation criterion, developed for evaluating J-R curves insteels, when applied to ABS polymers. This technique proposes the testing ofa singleprecracked specimen and a single blunt notched specimen. The latter provides amethod to detect the plastic displacement range during crack tip blunting in whichthe assumption of load separation criterion in the precracked specimen is valid, andalso allows determination of J Ic independently of J-R curve determination. Thedeformation material function is assumed to be a Ramberg-Osgood type lawdeformation function which leads to a very easy procedure to determine J-R curves.The J-R curve resulting from this new method is compared with one resulting froma traditional multiple specimen J-R curve determination method. Both results arein good agreement.
