Thermal Fatigue

Charkaluk, Éric; Rémy, Luc

doi:10.1002/9781118616994.ch7

Cited by 2 publications

(2 citation statements)

References 48 publications

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“…In order to study the cyclic mechanical properties, the fatigue lifetime and the damage mechanisms of LFC materials, strain controlled Low Cycle Fatigue (LCF) and Thermo Mechanical Fatigue (TMF) 2, 3 tests have been performed. All samples were extracted from the inter‐valve zones which are considered as critical zones for TMF in the fire deck.…”

Section: Methodsmentioning

confidence: 99%

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TMF criteria for Lost Foam Casting aluminum alloys

Tabibian

Charkaluk

Constantinescu

et al. 2012

Fatigue Fract Eng Mat Struct

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The purpose of this paper is to define a thermo‐mechanical fatigue criterion in order to predict the failure of aluminum alloys components issued with the lost foam casting process and used in particular in the automotive industry. The microstructure of the studied materials (A356–A319 aluminum alloys) is clearly affected by the lost foam casting process which can directly affect the mechanical properties, the damage mechanisms and the fatigue failure of specimens and components. The major problem in defining a predictive fatigue criterion in this case is the fact that it should be applicable for the component which is submitted to complex multiaxial thermo‐mechanical loadings. Since many years, energy‐based criteria have been used to predict fatigue failure of this class of materials. Then, different energy‐based criteria are tested in order to take into account different types of triaxiality and mean stress effects corrections. The fatigue lifetime results predicted by both of them show a good agreement with experimental results.

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Section: Methodsmentioning

confidence: 99%

“…The prediction of fatigue and failure of structures subjected to thermo‐mechanical loadings is nowadays an important challenge and has been the subject of major efforts in the last few decades 1–3 . Generally, the main objective is not just safety of design, but also lifetime prediction without intermediate monitoring.…”

Section: Introductionmentioning

confidence: 99%

TMF criteria for Lost Foam Casting aluminum alloys

Tabibian

Charkaluk

Constantinescu

et al. 2012

Fatigue Fract Eng Mat Struct

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Some Recent Advances on Thermal–mechanical Fatigue Design and Upcoming Challenges for the Automotive Industry

Szmytka

Osmond

Rémy

et al. 2019

Metals

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Automotive industry faces numerous evolutions regarding environment regulations and parts reliability. Through the specific case of a cylinder head, actual and forthcoming challenges for low-cycle and thermal–mechanical fatigue design in an industrial context are presented. With a description of current design approaches and highlighting limitations, this work focuses on variable loadings, constitutive models and their interaction with the environment, fatigue criteria, and structure validations, the four major steps to meet a reliable design. The need to carry out extended experimental databases for different complexity levels is emphasized to provide a better understanding of loadings and their impact on the strength of materials and structures, as well as the production of more physically-based models that are easier to identify and lead to higher levels of reliability in the thermal–mechanical design process.

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Thermal Fatigue

Cited by 2 publications

References 48 publications

TMF criteria for Lost Foam Casting aluminum alloys

TMF criteria for Lost Foam Casting aluminum alloys

Some Recent Advances on Thermal–mechanical Fatigue Design and Upcoming Challenges for the Automotive Industry

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