Auburn University — National Center for Additive Manufacturing Excellence (NCAME)
Auburn, AL · US · publishing in AM since 2013
Fatigue and fracture of AM metals, effect of post-processing
Nima Shamsaei is Professor of Mechanical Engineering at Auburn University and Director of the National Center for Additive Manufacturing Excellence (NCAME), a joint initiative between Auburn and NASA Marshall Space Flight Center. His group is widely regarded as one of the leading authorities on the fatigue behaviour of AM metals — quantifying how surface roughness, residual stress, and defect populations control crack initiation, and how HIP, heat treatment, and surface machining recover wrought-equivalent fatigue performance. He co-authored the highly-cited Yadollahi & Shamsaei (2017) framework for AM fatigue life prediction that incorporates surface roughness and defect-size effects. NCAME operates multiple LPBF and DED systems and contributes ASTM round-robin data feeding the F42 standards effort. Shamsaei has supervised a cohort of researchers now embedded in aerospace, defence, and medical-device AM qualification programmes.
Fatigue life prediction of additively manufactured material: Effects of surface roughness, defect size, and shape
Yadollahi A, Shamsaei N · 2017 · Fatigue & Fracture of Engineering Materials & Structures
DOILast reviewed: 2026-05-16 · Sources: 2
Read Shamsaei's full profile — sign up to additive.tools
Membership · no credit card · no marketing emails. Unlock the full library: 26 articles, 45 materials, 10 processes, 48 papers and more.