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Investigations on the fracture mechanical behaviour of ferritic nodular cast iron in dependence on the applied load and temperature

Journal Article:

Abstract

The focus of the investigations of ferritic nodular cast iron with varying graphite morphology was the determination of fracture mechanical characteristics and crack resistance curves of the J-integral and Crack Tip Opening Displacement (CTOD) concept under static and dynamic load. The experiments were performed at various temperatures down to 40 degrees below zero. The results show a close correlation between static crack initiation toughness values as well as crack resistance curves and quantitative graphite morphology parameters. The practised low-blow technique allowed the reproducible determination of dynamic R curves of the J-integral and CTOD concept. First results of the R curve investigations under dynamic load draw attention to a correlation between crack initiation toughness and graphite morphology that is comparable to the results under static load. A comparison of static and dynamic crack initiation toughness shows a loss of toughness with the dynamic values due to the higher loading rate. An influence of temperature on the static fracture mechanical crack resistance data in the investigated range of temperature was found to depend on the size of the graphite nodules. (author).
Authors:
Baer, W; Pusch, G; Michael, A [1] 
  1. Freiberg Univ., of Mining and Technology (Germany). Inst. of Materials Engineering
Publication Date:
Sep 01, 1995
Product Type:
Journal Article
Report Number:
CONF-9410134-
Reference Number:
SCA: 360103; 420204; PA: AIX-26:062567; EDB-95:130125; SN: 95001457703
Resource Relation:
Journal Name: International Journal of Radioactive Materials Transport; Journal Volume: 6; Journal Issue: 2-3; Conference: Brittle fracture safety assessment, Krefeld (Germany), 27-28 Oct 1994; Other Information: PBD: 1995
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; CAST IRON; FRACTURE MECHANICS; CRACK PROPAGATION; DYNAMIC LOADS; EXPERIMENTAL DATA; FRACTURE PROPERTIES; STATIC LOADS; TEMPERATURE DEPENDENCE
OSTI ID:
100398
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: IJRTER; ISSN 0957-476X; TRN: GB9501346062567
Submitting Site:
GBN
Size:
pp. 149-154
Announcement Date:
Oct 04, 1995

Journal Article:

Citation Formats

Baer, W, Pusch, G, and Michael, A. Investigations on the fracture mechanical behaviour of ferritic nodular cast iron in dependence on the applied load and temperature. United Kingdom: N. p., 1995. Web.
Baer, W, Pusch, G, & Michael, A. Investigations on the fracture mechanical behaviour of ferritic nodular cast iron in dependence on the applied load and temperature. United Kingdom.
Baer, W, Pusch, G, and Michael, A. 1995. "Investigations on the fracture mechanical behaviour of ferritic nodular cast iron in dependence on the applied load and temperature." United Kingdom.
@misc{etde_100398,
title = {Investigations on the fracture mechanical behaviour of ferritic nodular cast iron in dependence on the applied load and temperature}
author = {Baer, W, Pusch, G, and Michael, A}
abstractNote = {The focus of the investigations of ferritic nodular cast iron with varying graphite morphology was the determination of fracture mechanical characteristics and crack resistance curves of the J-integral and Crack Tip Opening Displacement (CTOD) concept under static and dynamic load. The experiments were performed at various temperatures down to 40 degrees below zero. The results show a close correlation between static crack initiation toughness values as well as crack resistance curves and quantitative graphite morphology parameters. The practised low-blow technique allowed the reproducible determination of dynamic R curves of the J-integral and CTOD concept. First results of the R curve investigations under dynamic load draw attention to a correlation between crack initiation toughness and graphite morphology that is comparable to the results under static load. A comparison of static and dynamic crack initiation toughness shows a loss of toughness with the dynamic values due to the higher loading rate. An influence of temperature on the static fracture mechanical crack resistance data in the investigated range of temperature was found to depend on the size of the graphite nodules. (author).}
journal = {International Journal of Radioactive Materials Transport}
issue = {2-3}
volume = {6}
journal type = {AC}
place = {United Kingdom}
year = {1995}
month = {Sep}
}