The 24 peer-reviewed papers in this book were presented at the Fourth ASTM International Symposium on the Structural Integrity of Additive Manufactured Materials and Parts held in 2019. Held in coordination with partners from government, industry, and academia, this event provided a forum for the exchange of ideas regarding the structural integrity of parts fabricated using additive manufacturing. A wide variety of topics were covered at the event, including a focus on design principles as well as qualification and certification challenges. The selected technical papers chosen for this volume delve further into: nondestructive evaluation in situ monitoring and process control of AM parts; fatigue, fracture, tensile, and corrosion behavior of materials and parts fabricated using AM; effects of design, process, and post-process parameters on fatigue and fracture properties; process optimization to improve structural integrity of AM parts; applicability of existing test methods to AM materials and parts and innovative approaches to standardization; recent advances in standardization, qualification, and certification. |