Short crack growth model for the evaluation of the fatigue strength of WAAM Ti-6Al-4V alloy containing pore-type defects

Marcos Bergant; Nicolás O. Larrosa; Alejandro Yawny; Mauro Madia

doi:10.1016/j.engfracmech.2023.109467

Short crack growth model for the evaluation of the fatigue strength of WAAM Ti-6Al-4V alloy containing pore-type defects

Marcos Bergant^*
, Nicolás O. Larrosa
, Alejandro Yawny
, Mauro Madia

^*Autor correspondiente de este trabajo

Materiales para condiciones extremas

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

17 Citas (Scopus)

Resumen

The role of defects in the fatigue strength of Wire Arc Additively Manufactured (WAAMed) Ti-6Al-4V is analysed by means of the IBESS model, a fracture mechanics short crack growth approach based on the cyclic R-curve. Pores and crack-like defects are analysed. Estimations of the role of pore shape and size agree well with published fatigue data of WAAM Ti-6Al-4V with pores. The model is also used to explain the effect of fabrication defects on the scatter of experimental data. This demonstrates that short crack growth models represent a suitable engineering tool for the fatigue assessment of defective AM materials.

Idioma original	Inglés
Número de artículo	109467
Publicación	Engineering Fracture Mechanics
Volumen	289
DOI	https://doi.org/10.1016/j.engfracmech.2023.109467
Estado	Publicada - 1 sept 2023

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title = "Short crack growth model for the evaluation of the fatigue strength of WAAM Ti-6Al-4V alloy containing pore-type defects",

abstract = "The role of defects in the fatigue strength of Wire Arc Additively Manufactured (WAAMed) Ti-6Al-4V is analysed by means of the IBESS model, a fracture mechanics short crack growth approach based on the cyclic R-curve. Pores and crack-like defects are analysed. Estimations of the role of pore shape and size agree well with published fatigue data of WAAM Ti-6Al-4V with pores. The model is also used to explain the effect of fabrication defects on the scatter of experimental data. This demonstrates that short crack growth models represent a suitable engineering tool for the fatigue assessment of defective AM materials.",

keywords = "Cyclic R-curve, IBESS model for short cracks-curve, Kitagawa-Takahashi (K-T) diagram, WAAM Ti-6Al-4V",

author = "Marcos Bergant and Larrosa, \{Nicol{\'a}s O.\} and Alejandro Yawny and Mauro Madia",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = sep,

day = "1",

doi = "10.1016/j.engfracmech.2023.109467",

language = "English",

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T1 - Short crack growth model for the evaluation of the fatigue strength of WAAM Ti-6Al-4V alloy containing pore-type defects

AU - Bergant, Marcos

AU - Larrosa, Nicolás O.

AU - Yawny, Alejandro

AU - Madia, Mauro

PY - 2023/9/1

Y1 - 2023/9/1

N2 - The role of defects in the fatigue strength of Wire Arc Additively Manufactured (WAAMed) Ti-6Al-4V is analysed by means of the IBESS model, a fracture mechanics short crack growth approach based on the cyclic R-curve. Pores and crack-like defects are analysed. Estimations of the role of pore shape and size agree well with published fatigue data of WAAM Ti-6Al-4V with pores. The model is also used to explain the effect of fabrication defects on the scatter of experimental data. This demonstrates that short crack growth models represent a suitable engineering tool for the fatigue assessment of defective AM materials.

AB - The role of defects in the fatigue strength of Wire Arc Additively Manufactured (WAAMed) Ti-6Al-4V is analysed by means of the IBESS model, a fracture mechanics short crack growth approach based on the cyclic R-curve. Pores and crack-like defects are analysed. Estimations of the role of pore shape and size agree well with published fatigue data of WAAM Ti-6Al-4V with pores. The model is also used to explain the effect of fabrication defects on the scatter of experimental data. This demonstrates that short crack growth models represent a suitable engineering tool for the fatigue assessment of defective AM materials.

KW - Cyclic R-curve

KW - IBESS model for short cracks-curve

KW - Kitagawa-Takahashi (K-T) diagram

KW - WAAM Ti-6Al-4V

UR - https://www.scopus.com/pages/publications/85164285979

U2 - 10.1016/j.engfracmech.2023.109467

DO - 10.1016/j.engfracmech.2023.109467

M3 - Article

AN - SCOPUS:85164285979

SN - 0013-7944

VL - 289

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

M1 - 109467

ER -

Short crack growth model for the evaluation of the fatigue strength of WAAM Ti-6Al-4V alloy containing pore-type defects

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