215 Advances in Correlating Length Scales and Ductile Failure

Ankit Srivastava, Texas A&M University
José Rodríguez-Martínez, University Carlos III of Madrid
Shmuel Osovski, Technion - Israel Institute of Technology
Ductile failure limits the performance, safety, reliability and manufacturability of a variety of engineering components and structures; for example, the crash worthiness of automobiles, the integrity of pipelines, the blast resistance of ships and airplane cargo holds, and the manufacturability of sheet metal components. The mechanisms of ductile failure of these components and structures are influenced by multiple length scales. For example, the structural dimensions set the constraint effects that influence phenomena such as plastic flow localization, and the microstructural length scales dictate phenomena such as void nucleation and growth. The phenomena that occur at microstructural length scales in turn inherits the effects related to the constraints imposed by structural dimensions. The coupling or competition between these length scales may in turn result in evolution of new length scales. Correlating these length scales with ductile failure mechanisms will provide a direct link essential for development of new materials and structures as well as modeling and control of catastrophic failures.

Although the field of modeling and simulation of ductile failure has received attention for several decades, it is still rich with exciting challenges. The recent advancements in modeling and simulation techniques that cover multiple length scales as well as mechanism-based and length scale dependent models provide unique opportunity to quantify the correlation between length scales and ductile failure. This symposium aims at gathering scientists from all horizons of computational mechanics in order to present their recent developments and results pertaining to correlating length scales and ductile failure. The main goal of the symposium is to probe the “state of the art” in this important field of solid/materials mechanics.