Thermomechanical fatigue test of cast iron GGG SiMo 4.05 and its numerical evaluation
Result description
Evaluation of uniaxial thermomechanical fatigue (TMF) test of cast iron GGG SiMo 4.05 is presented. The rod specimen is fixed into Coffin apparatus and cyclically heated and cooled until the rupture. The mutual approach of specimen's ends is measured. The dependence mechanical strain range - cycles to failure is obtained. Temperature along the specimen isn't constant in the same time. Evaluated strain is "average". The general usage of such tests is problematical. It was proposed methodology that generalizes the results of such TMF tests. The principle of this methodology is finite element simulation of real test. Local strain range is determined in the middle of the specimen. This is the typical location of the rupture. Computed local mechanical strain range is assigned to experimentally obtained cycles to failure. Localized lifetime curve is obtained. The proposed methodology allows the evaluation of TMF test on Coffin apparatus for more general application.
Keywords
Thermomechanical fatigueFatigue test, Coffin apparatusFE simulationGGV SiMo 4.05 cast iron
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Thermomechanical fatigue test of cast iron GGG SiMo 4.05 and its numerical evaluation
Original language description
Evaluation of uniaxial thermomechanical fatigue (TMF) test of cast iron GGG SiMo 4.05 is presented. The rod specimen is fixed into Coffin apparatus and cyclically heated and cooled until the rupture. The mutual approach of specimen's ends is measured. The dependence mechanical strain range - cycles to failure is obtained. Temperature along the specimen isn't constant in the same time. Evaluated strain is "average". The general usage of such tests is problematical. It was proposed methodology that generalizes the results of such TMF tests. The principle of this methodology is finite element simulation of real test. Local strain range is determined in the middle of the specimen. This is the typical location of the rupture. Computed local mechanical strain range is assigned to experimentally obtained cycles to failure. Localized lifetime curve is obtained. The proposed methodology allows the evaluation of TMF test on Coffin apparatus for more general application.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
1M0568: Josef Božek Research Center of Engine and Automotive Technology II
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Fatigue Design 2011 Recueil de conférences Conference Proceedings
ISBN
978-2-85400-946-0
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
"nečíslov. (ArtNo=W2.5)"
Publisher name
Centre technique des industries mécaniques
Place of publication
Senlis
Event location
Senlis
Event date
Nov 23, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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Basic information
Result type
D - Article in proceedings
CEP
JL - Fatigue and fracture mechanics
Year of implementation
2011