Structural durability in automotive design

Thomas, Jean-Jacques; Nguyen-Tajan, Thi Mac-Lan; Burry, Pierre

doi:10.1002/mawe.200500934

Cited by 3 publications

(4 citation statements)

References 4 publications

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“…Bild 5 [10]. Dieser Ansatz wurde auch im Rahmen der Erstellung des Laststandards CARLOS Trailer Coupling Bike Carrier (Fahrradträger auf Anhängerkupplung) angewendet [11].…”

Section: Grundlagen Der Festigkeitsauslegungunclassified

“…Dieser Ansatz wurde auch im Rahmen der Erstellung des Laststandards CARLOS Trailer Coupling Bike Carrier (Fahrradträger auf Anhängerkupplung) angewendet [11]. Andere, mit höherem Aufwand verbundene Methoden beruhen auf der Messung von Kundenfahrzeugen im normalen Kundenbetrieb [10,12,13]. Die Zahl der beteiligten Fahrzeuge ist ein wesentlicher Erfolgsfaktor, jedoch gleichzeitig auch ein wesentlicher Kostenfaktor.…”

Section: Grundlagen Der Festigkeitsauslegungunclassified

“…Die Konzepte beinhalten dabei Messzeiten von ca. einem Monat [10] bis hin zu deutlich längeren Zeiträu-men von größer einem halben Jahr [13]. Ein weiterer Ansatz wurde in [14] vorgestellt, nach dem längere repräsentative Strekken in den unterschiedlichen Märkten ("placeholder road circuits") identifiziert werden, um die Auswirkungen der typischen Straßen-und Nutzungsprofile für die erforderlichen Lastanforderungen zu erfassen.…”

Section: Grundlagen Der Festigkeitsauslegungunclassified

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Approaches of load assumption for durability assessment of automotive structure

Heuler¹,

Frost²,

Rochlitz³

2011

Materialwissenschaft Werkst

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As an essential part of the product development and design, the derivation of load assumptions and design requirements has to reflect the concept of the product verification process. An overview is given on the key elements of the process of defining load assumptions for passenger cars where the full set of external loads acting on a vehicle has to be considered, but also the structural response, which leads to the final load requirements on a component level. Some information is presented on the process where load assumption and strength and fatigue design requirements are derived on the basis of a number of sources including systematic measurements on new vehicles, consolidation of measurements within a load data-base, numerical analyses and customer usage surveys. The topic of standardised load-time histories is added by a comparison of load requirements given by CARLOS multi to those obtained from a test track.Keywords: Normalisation of load data / load data of customer usage / MBD simulation / standardised load-time history CARLOS multi / 1 Einleitung

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“…Bild 5 [10]. Dieser Ansatz wurde auch im Rahmen der Erstellung des Laststandards CARLOS Trailer Coupling Bike Carrier (Fahrradträger auf Anhängerkupplung) angewendet [11].…”

Section: Grundlagen Der Festigkeitsauslegungunclassified

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Approaches of load assumption for durability assessment of automotive structure

Heuler¹,

Frost²,

Rochlitz³

2011

Materialwissenschaft Werkst

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“…Wannenburg (1998) describes a methodology which, by using measured data, derives a fatigue design criterion that requires only static finite-element analysis. A similar methodology is also described by Thomas et al (2005). The methodology comprises the following steps:…”

Section: Direct Integration Methodologymentioning

confidence: 99%

An overview of numerical methodologies for durability assessment of vehicle and transport structures

Wannenburg

Heyns

2010

IJVSMT

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Numerical methodologies for assessing the durability of vehicle and transport structures are reviewed. These methodologies are mapped in terms of a framework that emphasizes the relationships among them. Load inputs are obtained from either measurements or simulation. These loads are used as inputs into stress analyses, which may be either quasi-static or dynamic, and either in the time domain or in the frequency domain. The outputs of these analyses can then be used in fatigue analyses. The advantages and disadvantages of each method are analysed. A case study is described to demonstrate the insights gained from the mapping framework.

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Construction of Fatigue Criteria Through Positive‐Unlabeled Learning

Coudray,

Bristiel,

Dinis

et al. 2024

Fatigue Fract Eng Mat Struct

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The reliability of vehicles is a significant issue for automotive manufacturers, with mechanical fatigue representing a pivotal aspect of the design process. To accelerate the development of novel mechanical components, automotive manufacturers are increasingly employing numerical simulations with the objective of markedly reducing the number of prototype validation tests. This requires the utilization of efficient fatigue criteria capable of accurately identifying critical zones in numerical models. However, the current fatigue criteria frequently fail to demonstrate a satisfactory correlation with the results obtained from fatigue test rigs. In response, this paper proposes a probabilistic Dang Van criterion that accounts for variability in fatigue results within a multiaxial context. Additionally, a fatigue database comprising numerical results and test reports on automotive chassis components is introduced. A novel approach utilizing positive‐unlabeled learning is developed to enhance the predictive accuracy of the fatigue criterion. Its effectiveness is demonstrated through application to the fatigue database.

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Structural durability in automotive design

Cited by 3 publications

References 4 publications

Approaches of load assumption for durability assessment of automotive structure

Approaches of load assumption for durability assessment of automotive structure

An overview of numerical methodologies for durability assessment of vehicle and transport structures

Construction of Fatigue Criteria Through Positive‐Unlabeled Learning

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