Ratcheting performance of maraging steel fabricated via laser powder bed fusion: experimental evaluation and numerical prediction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10260065" target="_blank" >RIV/61989100:27230/25:10260065 - isvavai.cz</a>

Result on the web

<a href="https://www.emerald.com/ijsi/article/16/2/403/1244114/Ratcheting-performance-of-maraging-steel" target="_blank" >https://www.emerald.com/ijsi/article/16/2/403/1244114/Ratcheting-performance-of-maraging-steel</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1108/IJSI-11-2024-0188" target="_blank" >10.1108/IJSI-11-2024-0188</a>

Result language

angličtina

Original language name

Ratcheting performance of maraging steel fabricated via laser powder bed fusion: experimental evaluation and numerical prediction

Original language description

PurposeThis work intends to evaluate experimentally the ratcheting behaviour of AM MS300. Furthermore, cyclic plasticity modelling (modified Abdel-Karim and Ohno model) is examined as a means of predicting ratcheting.Design/methodology/approachUniaxial stress-controlled cyclic loading histories were utilised to evaluate ratcheting for Maraging Steel 300 (MS300) fabricated via laser powder bed fusion (LPBF) additive manufacturing (AM). Heat-treated and as-built AM and conventionally manufactured (CM) MS300 coupons were tested at room temperature, under constant and incrementally variable stress amplitude and mean stress. Two sets of AM test coupons were used, printed at horizontal and vertical built orientation. The AM material ratcheting was predicted via constitutive modelling and numerical simulation. The Abdel-Karim and Ohno cyclic plasticity model was modified by introducing a memory surface, to improve ratcheting prediction.FindingsThe hysteresis stress-strain response and low cycle fatigue (LCF) life were obtained from the different loading histories. Both the AM and CM MS300 exhibited an accumulation of axial strain (ratcheting) for all tests, attributed to the application of non-zero mean stress. The AM MS300 has demonstrated a higher ratcheting accumulation rate than the CM material. The achieved agreement between the numerical results of the new model and the experimental data offers an indication on the suitability and the robustness of this model.Originality/valueThe ratcheting behaviour of the AM MS300 material has been characterised for the first time in the published literature, for a variety of loading histories selected. A modified Abdel-Karim and Ohno plasticity model has been developed to account for the ratcheting performance of this material.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20302 - Applied mechanics

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Structural Integrity

ISSN

1757-9864

e-ISSN

1757-9872

Volume of the periodical

16

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

27

Pages from-to

403-429

UT code for WoS article

001435022400001

EID of the result in the Scopus database

2-s2.0-105001969510