TY - JOUR
T1 - Peridynamic analysis to investigate the influence of microstructure and porosity on fatigue crack propagation in additively manufactured Ti6Al4V
AU - Karpenko, O.
AU - Oterkus, Selda
AU - Oterkus, Erkan
PY - 2022
Y1 - 2022
N2 - Additive Manufacturing (AM) has gained a lot of interest due to the freedom to produce complex metal geometries directly from the designed digital model. Despite the high potential of AM, the process induced imperfections, like pores and the microstructural changes due to the layer-by-layer manufacturing, made a significant impact on the fatigue resistance and crack growth behaviour. Consequently, this work aims to evaluate the effect of microstructure and existence of pores in additively manufactured Ti6Al4V on Fatigue Crack Growth (FCG) utilizing bond-based Peridynamics (PD) fatigue model. Employing the columnar granularity and different levels of porosities indicated a substantial impact on FCG rates.
AB - Additive Manufacturing (AM) has gained a lot of interest due to the freedom to produce complex metal geometries directly from the designed digital model. Despite the high potential of AM, the process induced imperfections, like pores and the microstructural changes due to the layer-by-layer manufacturing, made a significant impact on the fatigue resistance and crack growth behaviour. Consequently, this work aims to evaluate the effect of microstructure and existence of pores in additively manufactured Ti6Al4V on Fatigue Crack Growth (FCG) utilizing bond-based Peridynamics (PD) fatigue model. Employing the columnar granularity and different levels of porosities indicated a substantial impact on FCG rates.
UR - http://www.scopus.com/inward/record.url?scp=85122638200&partnerID=8YFLogxK
U2 - 10.1016/j.engfracmech.2021.108212
DO - 10.1016/j.engfracmech.2021.108212
M3 - Article
SN - 0013-7944
VL - 261
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
M1 - 108212
ER -