National Center for Additive Manufacturing Excellence (NCAME)

#NCAME is proud to present recent highlights of our activities, publications, and growth of capabilities in our Q1 update!   To see more details, download the PDF and access the imbedded hyperlinks.   Scot Carpenter, P.E.; Dawson Fite; Thomas Hill; Jonathan Pegues; Reza Molaei; Shuai Shao; Nima Shamsaei   Auburn University Auburn University Department of Mechanical Engineering National Center for Additive Manufacturing Excellence (NCAME)   #AdditiveManufacturing #Innovation #Collaboration #AdvancedManufacturing #3DPrinting

Last week, one of NCAME's PhD students, Arun Poudel, successfully defended his Ph.D. final oral examination. His research focused on finding the synergistic effect of volumetric defects and notch geometry on fatigue behavior of additively manufactured materials. Congratulations, Dr. Arun Poudel! Wishing you continued success in your future endeavors. Chair: Dr. Nima Shamsaei, Co-Chair: Dr. Shuai Shao Committee members: Dr. Robert Jackson, D. Jingyi Zheng, Dr. Jia Liu   Auburn University Auburn University Department of Mechanical Engineering #PhDDefense #NCAME #AdditiveManufacturing #AdvancedManufacturing #3Dprinting

Last week, NCAME's graduate students showcased their cutting-edge research at the Auburn University, Samuel Ginn College of Engineering’s Graduate Engineering Research Showcase, highlighting their impactful contributions to additive manufacturing. Sponsored by National Science Foundation (NSF), NASA - National Aeronautics and Space Administration and Federal Aviation Administration, their presentations covered a broad range of exciting topics in metal additive manufacturing: Defect detection in AM,  Deformation Mechanisms in AM alloys 718,  Capturing Fatigue-Critical Surface Feature,  Defect Criticality in Fatigue Behavior of AM Metals,  Role of Defect and Microstructure on the Fatigue Behavior of AM IN718,  Understanding the influence of Different Surface Treatments on Fatigue Behavior of L-PBF Haynes 214, Advancing the Understanding of Fatigue in Additively Manufactured TPMS Metallic Metamaterials: Experiments and Modelling.    A special congratulations to Mikyle Paul for winning the "Best Poster Presentation Award" in Mechanical Engineering for his work on "Fatigue crack growth in L-PBF Ti-6Al-4V". Shaikha Shohuda Tuktuk, Krista Dyer, Indrajit Nandi, Nabeel Ahmad, Mikyle Paul, Muztahid Muhammad, Alireza Bidar, Shaharyar Baig, Reza Molaei, Shuai Shao, Nima Shamsaei    Auburn University Auburn University Department of Mechanical Engineering #GraduateResearch #AdditiveManufacturing, #3Dprinting, #AdvancedManufacturing #ResearchExcellence

Excited to share that our team, PRIME (Predictive Real-time Intelligence for Metallic Endurance), has officially kicked off the DARPA SURGE project! Stay tuned for the exciting outcomes of this transformative initiative. Learn more about the SURGE program here: https://lnkd.in/gnyuzjGr Team Members: University of Michigan: Veera Sundararaghavan (PI), LEI CHEN Texas A&M University: Alaa Elwany, Ibrahim Karaman, Raymundo Arroyave Auburn University: Nima Shamsaei, Shuai Shao, National Center for Additive Manufacturing Excellence (NCAME) UC San Diego: Boris Kramer Addiguru: Shuchi "SK" Khurana, Thomas Spears, Ph.D. AlphaSTAR: Harsh Baid ASTM International: Mohsen Seifi, Martin White, Sean Hill, Lauren Ednie #DARPASURGE #AdditiveManufacturing #ProcessMonitoring Michigan Aerospace, J. Mike Walker '66 Department of Mechanical Engineering at Texas A&M University, Department of Materials Science and Engineering at Texas A&M University, Wm Michael Barnes '64 Department of Industrial & Systems Engineering at Texas A&M University, UC San Diego Mechanical and Aerospace Engineering Department, National Center for Additive Manufacturing Excellence (NCAME), Addiguru, AlphaSTAR, ASTM Additive Manufacturing Center of Excellence

#NCAME is proud of the Senior Design Groups who presented their work in the Auburn University Senior Capstone Showcase April 3, 2025. Their work focused on aspects of L-PBF and LP-DED additive manufacturing relevant to the interests of the sponsor, the US Army. In addition to faculty and staff, this event was attended by over 57 employers and industry representatives. Dominic Annichiarico, Jasmine Shephard, Jacob Neuman, Cooper Braddy, Jackson Allen, Matthew Horsley, Zachary Wainwright, Russell Jacoway, Brendan Stone, Thomas Hill,  Jordan Roberts, Kyle Schulze, Shuai Shao, Nima Shamsaei Auburn University, Samuel Ginn College of Engineering Auburn University Department of Mechanical Engineering #AdditiveManufacturing #AdvancedManufacturing #3DPrinting

Dr. Shuai Shao visited The College of Engineering and Engineering Technology of Northern Illinois University (NIU) and presented recent #NCAME research on the high cycle fatigue behavior of additively manufactured metallic materials. The overview covered materials with varying sensitivity to volumetric defects in their fatigue behavior, including Ti-6Al-4V and Inconel 718.   During his visit, he also had fruitful discussions with NIU faculty members. Hopefully, #collaborations can be established.   Thank you, Dr. Iman Salehinia for your kind invitation.   Sahar Vahabzadeh, Jenn-Terng Gau, Kyu Taek Cho Auburn University Auburn University, Samuel Ginn College of Engineering Auburn University Department of Mechanical Engineering #AdditiveManufacturing #AdvancedManufacturing #3DPrinting

#Unmachined specimens typically exhibit shorter fatigue lives compared to machined counterparts, primarily due to the presence of surface micro-notches. Methods based on standard roughness parameters provide an overall representation of the surface texture while ignoring the criticality of individual valleys and their morphology, thus overlooking the localized nature of fatigue damage.  In this study, we adopted a fracture mechanics approach to identify critical surface features influencing the fatigue behavior of laser powder bed fused parts. Surface and sub-surface defects were detected using #XCT, and a new method to capture the geometrical features of surface micro-notches such as opening angle, depth, width, and radius of curvature was introduced. By combining these features with classical stress concentration formulae, we were able to adequately represent the fatigue criticality of surface micro-notches using calculated fatigue stress concentration factors.  You can access the article via the following link:  https://lnkd.in/gftKKPg7 This research was sponsored by the Federal Aviation Administration.    Nabeel Ahmad, Shehzaib Irfan, Erfan Maleki, Seungjong Lee, Jia Liu, Shuai Shao, Nima Shamsaei   Auburn University  Auburn University Department of Mechanical Engineering  Auburn University Department of Industrial and Systems Engineering  National Center for Additive Manufacturing Excellence (NCAME) #AdditiveManufacturing #SurfaceRoughness #Fatigue #Ti6Al4V 

NCAME is at #TMS2025! Come learn about our latest advancements in additive manufacturing. Behnam Salehnasab; Shaharyar Baig; Stefano Beretta; Shuai Shao; Nima Shamsaei Auburn University Federal Aviation Administration Auburn University Department of Mechanical Engineering National Institute of Standards and Technology (NIST) National Center for Additive Manufacturing Excellence (NCAME)   #additivemanufacturing; #3dprining; #advancedmanufacturing

Don't miss out on the latest research from #NCAME. Join us for insightful presentations and engage with our team at #TMS2025 Indrajit Nandi; Sajith Soman; Reza Molaei; Shuai Shao; Nima Shamsaei Auburn University NASA - National Aeronautics and Space Administration Auburn University Department of Mechanical Engineering National Center for Additive Manufacturing Excellence (NCAME)    #additivemanufacturing; #3dprining; #advancedmanufacturing

Join us at #TMS2025! Discover the latest research from the National Center for Additive Manufacturing Excellence (NCAME)   Arun Poudel; Shaharyar Baig; Matthew Kelly, PhD; Alireza Jam; Jonathan Pegues; Stefano Beretta; Shuai Shao; Nima Shamsaei Auburn University U.S. Army DEVCOM Ground Vehicle Systems Center Auburn University Department of Mechanical Engineering #additivemanufacturing; #3dprining; #advancedmanufacturing