Details
| Original language | English |
|---|---|
| Pages (from-to) | 42-52 |
| Number of pages | 11 |
| Journal | Procedia Structural Integrity |
| Volume | 57 |
| Early online date | 6 May 2023 |
| Publication status | Published - 2024 |
| Event | 10th International Conference on Fatigue Design, FatDes 2023 - Cetim, Senlis, France Duration: 29 Nov 2023 → 30 Nov 2023 |
Abstract
Wire arc additive manufacturing (WAAM) is a metal 3D printing technique well recognised in the construction sector for its high efficiency, cost-effectiveness and flexibility in build scales. However, there remains a lack of fundamental data on the structural performance of WAAM elements, especially regarding their fatigue behaviour. A comprehensive experimental study into the fatigue behaviour of WAAM steel plates has therefore been undertaken and is reported herein. Following geometric and mechanical characterisation, a series of WAAM coupons was tested under uniaxial high-cycle fatigue loading. A total of 75 fatigue tests on both as-built and machined coupons, covering various stress ranges and stress ratios, have been conducted. The fatigue test results were analysed using constant life diagrams (CLDs) and S-N (stress-life) diagrams. The CLDs revealed that the fatigue strength of the as-built WAAM steel was relatively insensitive to the different stress ratios. The S-N diagrams showed that the surface undulations resulted in a reduction of about 35% in the fatigue endurance limit for the as-built WAAM material relative to the machined material, and a reduction of about 60% in fatigue life under the same load level. Preliminary S-N curves were also proposed for the WAAM steel.
Keywords
- Experiments, Fatigue life, Geometric variability, Metal 3D printing, Wire arc additive manufacturing
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Procedia Structural Integrity, Vol. 57, 2024, p. 42-52.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Fatigue behaviour of wire arc additively manufactured sheet material
AU - Huang, Cheng
AU - Li, Lingzhen
AU - Pichler, Niels
AU - Ghafoori, Elyas
AU - Gardner, Leroy
N1 - Publisher Copyright: © 2024 The Authors. Published by Elsevier B.V.
PY - 2024
Y1 - 2024
N2 - Wire arc additive manufacturing (WAAM) is a metal 3D printing technique well recognised in the construction sector for its high efficiency, cost-effectiveness and flexibility in build scales. However, there remains a lack of fundamental data on the structural performance of WAAM elements, especially regarding their fatigue behaviour. A comprehensive experimental study into the fatigue behaviour of WAAM steel plates has therefore been undertaken and is reported herein. Following geometric and mechanical characterisation, a series of WAAM coupons was tested under uniaxial high-cycle fatigue loading. A total of 75 fatigue tests on both as-built and machined coupons, covering various stress ranges and stress ratios, have been conducted. The fatigue test results were analysed using constant life diagrams (CLDs) and S-N (stress-life) diagrams. The CLDs revealed that the fatigue strength of the as-built WAAM steel was relatively insensitive to the different stress ratios. The S-N diagrams showed that the surface undulations resulted in a reduction of about 35% in the fatigue endurance limit for the as-built WAAM material relative to the machined material, and a reduction of about 60% in fatigue life under the same load level. Preliminary S-N curves were also proposed for the WAAM steel.
AB - Wire arc additive manufacturing (WAAM) is a metal 3D printing technique well recognised in the construction sector for its high efficiency, cost-effectiveness and flexibility in build scales. However, there remains a lack of fundamental data on the structural performance of WAAM elements, especially regarding their fatigue behaviour. A comprehensive experimental study into the fatigue behaviour of WAAM steel plates has therefore been undertaken and is reported herein. Following geometric and mechanical characterisation, a series of WAAM coupons was tested under uniaxial high-cycle fatigue loading. A total of 75 fatigue tests on both as-built and machined coupons, covering various stress ranges and stress ratios, have been conducted. The fatigue test results were analysed using constant life diagrams (CLDs) and S-N (stress-life) diagrams. The CLDs revealed that the fatigue strength of the as-built WAAM steel was relatively insensitive to the different stress ratios. The S-N diagrams showed that the surface undulations resulted in a reduction of about 35% in the fatigue endurance limit for the as-built WAAM material relative to the machined material, and a reduction of about 60% in fatigue life under the same load level. Preliminary S-N curves were also proposed for the WAAM steel.
KW - Experiments
KW - Fatigue life
KW - Geometric variability
KW - Metal 3D printing
KW - Wire arc additive manufacturing
UR - http://www.scopus.com/inward/record.url?scp=85193751545&partnerID=8YFLogxK
U2 - 10.1016/j.prostr.2024.03.006
DO - 10.1016/j.prostr.2024.03.006
M3 - Conference article
AN - SCOPUS:85193751545
VL - 57
SP - 42
EP - 52
JO - Procedia Structural Integrity
JF - Procedia Structural Integrity
SN - 2452-3216
T2 - 10th International Conference on Fatigue Design, FatDes 2023
Y2 - 29 November 2023 through 30 November 2023
ER -