Phase Field Fracture Simulation Assessment
Abstract
Funds are provided to produce reference data sets for the fracture of materials suitable for validating numerical simulations of the fracture of materials. This project addresses directly the objectives for furthering basic research efforts including scientific st udy and experimentation directed toward increasing knowledge and understanding in national security related aspects of physical, eng ineering, environmental, and life sciences.Fracture is a particularly insidious failure mode of a material. Many phase field meth ods have been proposed to compute crack nucleation and propagation. These methods have the advantages of not requiri ng the path of the crack to be known a priori, accurately capturing the driving force for crack growth, and the a bility to include the complications of the microstructures seen in engineering materials such as grains and precipitates in the cal culation. To use any of these models confidently in the design of a material requires a more quantitative assessment of the veracit y of these models. We thus propose to develop a quantitative assessment methodology for these phase field fracture simulation tools by comparing the calculated crack paths to those measured using state-of-the-art X-ray tomography. The goal is to produce a verifi ed and validated model of the fracture of engineering materials.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 20, 2021
- Source ID
- N000142112784
Entities
People
- Peter Voorhees
Organizations
- Northwestern University
- Office of Naval Research
- United States Navy