Total fatigue life testing of high strength steels and conventional steels

Monisha Manjunatha; Yevgen Gorash; Tugrul Comlekci; Lewis Milne; Donald MacKenzie

doi:10.1016/j.prostr.2025.11.067

Total fatigue life testing of high strength steels and conventional steels

Monisha Manjunatha^*
, Yevgen Gorash
, Tugrul Comlekci
, Lewis Milne
, Donald MacKenzie

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

3 Downloads (Pure)

Abstract

In recent years, there has been a surge in production of high-strength steel (HSS) due to market demand. Application of HSS has increased in the field of construction and heavy industrial equipment in order to optimise the product weight, with a focus on sustainability. An important feature is that HSS has higher yield strength than conventional structural steels, but lower ductility. Based on this, it is often assumed that HSS would perform better in terms of fatigue strength. However, this assumption requires additional validation considering manufacturing and environmental effects, where higher ductility would be more beneficial. This paper discusses the comparative analysis of the total fatigue life assessment of different steel grades (from low to high) assuming crack initiation and crack propagation.

Original language	English
Pages (from-to)	650-659
Number of pages	10
Journal	Procedia Structural Integrity
Volume	75
DOIs	https://doi.org/10.1016/j.prostr.2025.11.067
Publication status	Published - 10 Dec 2025
Event	Fatigue Design 2025: FD2025 - CETIM, Senlis, France Duration: 19 Nov 2025 → 20 Nov 2025

Funding

The authors would like to acknowledge the support for this study, which was provided by the Weir Group PLC (WARC2011-SAA1, 2011) via its establishment of the Weir Advanced Research Centre (WARC) at the University of Strathclyde

Keywords

high strength steels
very high cycle fatigue
ultrasonic fatigue testing

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10.1016/j.prostr.2025.11.067Licence: CC BY-NC-ND 4.0

Manjunatha-etal-PSI-2025-Total-fatigue-life-testing-of-high-strength-steels-and-conventional-steelsFinal published version, 1.37 MBLicence: CC BY-NC-ND 4.0

Cite this

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title = "Total fatigue life testing of high strength steels and conventional steels",

abstract = "In recent years, there has been a surge in production of high-strength steel (HSS) due to market demand. Application of HSS has increased in the field of construction and heavy industrial equipment in order to optimise the product weight, with a focus on sustainability. An important feature is that HSS has higher yield strength than conventional structural steels, but lower ductility. Based on this, it is often assumed that HSS would perform better in terms of fatigue strength. However, this assumption requires additional validation considering manufacturing and environmental effects, where higher ductility would be more beneficial. This paper discusses the comparative analysis of the total fatigue life assessment of different steel grades (from low to high) assuming crack initiation and crack propagation.",

keywords = "high strength steels, very high cycle fatigue, ultrasonic fatigue testing",

author = "Monisha Manjunatha and Yevgen Gorash and Tugrul Comlekci and Lewis Milne and Donald MacKenzie",

year = "2025",

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day = "10",

doi = "10.1016/j.prostr.2025.11.067",

language = "English",

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pages = "650--659",

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T1 - Total fatigue life testing of high strength steels and conventional steels

AU - Manjunatha, Monisha

AU - Gorash, Yevgen

AU - Comlekci, Tugrul

AU - Milne, Lewis

AU - MacKenzie, Donald

PY - 2025/12/10

Y1 - 2025/12/10

N2 - In recent years, there has been a surge in production of high-strength steel (HSS) due to market demand. Application of HSS has increased in the field of construction and heavy industrial equipment in order to optimise the product weight, with a focus on sustainability. An important feature is that HSS has higher yield strength than conventional structural steels, but lower ductility. Based on this, it is often assumed that HSS would perform better in terms of fatigue strength. However, this assumption requires additional validation considering manufacturing and environmental effects, where higher ductility would be more beneficial. This paper discusses the comparative analysis of the total fatigue life assessment of different steel grades (from low to high) assuming crack initiation and crack propagation.

AB - In recent years, there has been a surge in production of high-strength steel (HSS) due to market demand. Application of HSS has increased in the field of construction and heavy industrial equipment in order to optimise the product weight, with a focus on sustainability. An important feature is that HSS has higher yield strength than conventional structural steels, but lower ductility. Based on this, it is often assumed that HSS would perform better in terms of fatigue strength. However, this assumption requires additional validation considering manufacturing and environmental effects, where higher ductility would be more beneficial. This paper discusses the comparative analysis of the total fatigue life assessment of different steel grades (from low to high) assuming crack initiation and crack propagation.

KW - high strength steels

KW - very high cycle fatigue

KW - ultrasonic fatigue testing

U2 - 10.1016/j.prostr.2025.11.067

DO - 10.1016/j.prostr.2025.11.067

M3 - Conference article

SN - 2452-3216

VL - 75

SP - 650

EP - 659

JO - Procedia Structural Integrity

JF - Procedia Structural Integrity

T2 - Fatigue Design 2025

Y2 - 19 November 2025 through 20 November 2025

ER -

Total fatigue life testing of high strength steels and conventional steels

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