SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data

The service life of materials and components exposed to repeated mechanical loads is limited, which is why the understanding of the damage evolution and estimating its fatigue life is of high importance for its technical application. This paper shows how temperature and magnetic field measurement me...

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Main Authors: Ruth Acosta, Haoran Wu, Ramanan Sridaran Venkat, Fabian Weber, Jochen Tenkamp, Frank Walther, Peter Starke
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/10/6/798
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author Ruth Acosta
Haoran Wu
Ramanan Sridaran Venkat
Fabian Weber
Jochen Tenkamp
Frank Walther
Peter Starke
author_facet Ruth Acosta
Haoran Wu
Ramanan Sridaran Venkat
Fabian Weber
Jochen Tenkamp
Frank Walther
Peter Starke
author_sort Ruth Acosta
collection DOAJ
description The service life of materials and components exposed to repeated mechanical loads is limited, which is why the understanding of the damage evolution and estimating its fatigue life is of high importance for its technical application. This paper shows how temperature and magnetic field measurement methods can be used to describe the cyclic deformation behaviour of metallic materials and to derive parameters from this, which are used in short-term methods to calculate the fatigue life. Within the SteBLife (stepped-bar fatigue life) approach, only three to five fatigue tests with a stepped fatigue specimen are required to determine a complete S–N or Woehler curve with scatter bands for different failure probabilities. If only a trend S–N curve is required, the number of tests can be reduced to a single fatigue test only. In the framework of this paper, these approaches will be presented for normalised SAE 1045 (C45E) and quenched and tempered SAE 4140 (42CrMo4) steels.
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spelling doaj.art-d462359914e54aad8dc6efc65f40afba2023-11-20T04:01:09ZengMDPI AGMetals2075-47012020-06-0110679810.3390/met10060798SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue DataRuth Acosta0Haoran Wu1Ramanan Sridaran Venkat2Fabian Weber3Jochen Tenkamp4Frank Walther5Peter Starke6Department of Materials Science and Materials Testing (WWHK), University of Applied Sciences Kaiserslautern, Schoenstraße 11, D-67659 Kaiserslautern, GermanyDepartment of Materials Science and Materials Testing (WWHK), University of Applied Sciences Kaiserslautern, Schoenstraße 11, D-67659 Kaiserslautern, GermanyChair of Nondestructive Testing and Quality Assurance (LZfPQ), Saarland University, Am Markt 4., D-66125 Saarbrücken, GermanyChair of Nondestructive Testing and Quality Assurance (LZfPQ), Saarland University, Am Markt 4., D-66125 Saarbrücken, GermanyDepartment of Materials Test Engineering (WPT), TU Dortmund University, Baroper Str. 303, D-44227 Dortmund, GermanyDepartment of Materials Test Engineering (WPT), TU Dortmund University, Baroper Str. 303, D-44227 Dortmund, GermanyDepartment of Materials Science and Materials Testing (WWHK), University of Applied Sciences Kaiserslautern, Schoenstraße 11, D-67659 Kaiserslautern, GermanyThe service life of materials and components exposed to repeated mechanical loads is limited, which is why the understanding of the damage evolution and estimating its fatigue life is of high importance for its technical application. This paper shows how temperature and magnetic field measurement methods can be used to describe the cyclic deformation behaviour of metallic materials and to derive parameters from this, which are used in short-term methods to calculate the fatigue life. Within the SteBLife (stepped-bar fatigue life) approach, only three to five fatigue tests with a stepped fatigue specimen are required to determine a complete S–N or Woehler curve with scatter bands for different failure probabilities. If only a trend S–N curve is required, the number of tests can be reduced to a single fatigue test only. In the framework of this paper, these approaches will be presented for normalised SAE 1045 (C45E) and quenched and tempered SAE 4140 (42CrMo4) steels.https://www.mdpi.com/2075-4701/10/6/798fatigue life evaluationSteBLifethermographymagnetic-based measurements
spellingShingle Ruth Acosta
Haoran Wu
Ramanan Sridaran Venkat
Fabian Weber
Jochen Tenkamp
Frank Walther
Peter Starke
SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data
Metals
fatigue life evaluation
SteBLife
thermography
magnetic-based measurements
title SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data
title_full SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data
title_fullStr SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data
title_full_unstemmed SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data
title_short SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data
title_sort steblife a new approach for the accelerated generation of metallic materials fatigue data
topic fatigue life evaluation
SteBLife
thermography
magnetic-based measurements
url https://www.mdpi.com/2075-4701/10/6/798
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