Computing the durability of WAAM 18Ni 250 maraging steel specimens
Daren Peng, R. Jones, Andrew Siao Ming Ang, Alex Michelson, Victor K. Champagne, Aaron Birt, Samuel Pinches, Sudip Kundu, Alankar Alankar, Raman R. K. Singh
Abstract
Abstract MIL‐STD 1530D requires that the certification of an aircraft part employ analytical tools that are capable of modeling crack growth. It is further stated that the durability and damage tolerance (DADT) analyses should be based on linear elastic fracture mechanics (LEFM) and follow a building block approach. This paper illustrates the durability analysis required to certify an additively manufactured part by using the examples of durability tests performed on two wire arc additively manufactured (WAAM) 18Ni 250 Maraging steel specimens.
Topics & Concepts
DurabilityMaraging steelMaterials scienceStructural engineeringCertificationComposite materialForensic engineeringMechanical engineeringEngineeringLawPolitical scienceAdditive Manufacturing Materials and ProcessesManufacturing Process and OptimizationWelding Techniques and Residual Stresses