Wednesday, December 06, 2023
1:00 PM - 2:00 PM CST
Large-Scale TTA Colloquium (virtual)
Advances in Topological Design for Enhanced Fracture Resistance
Daicong Da, Boise State University
Heterogeneous materials and structures are poised to revolutionize the field of engineering materials, offering unprecedented mechanical performance. The arrangement of constituent materials within these structures plays a pivotal role in determining their mechanical behavior. Designing heterogeneous materials capable of withstanding extreme conditions, particularly regarding failure and fracture resistance, poses a significant challenge. This challenge arises not only from the intricacies of fracture modeling but also from the vast array of possible architectures and material combinations. In practice, these complexities necessitate the development of robust and efficient design methodologies.
This presentation will highlight key findings from my ongoing research in the field of fracture-resistant design for heterogeneous materials. The approaches employed encompass strength-oriented optimization and comprehensive control of the entire fracture process, encompassing damage initiation, multiple crack propagation, and, ultimately, failure. I will provide an overview of the merits associated with biomimetic designs, gradient-free configurations, and gradient-optimized architectures in enhancing mechanical fracture performance. Additionally, I will showcase recent breakthroughs in harnessing reduced-order modeling and data-driven algorithms for optimizing material structures.
Dr. Daicong Da holds the position of Assistant Professor in the Department of Mechanical and Biomedical Engineering at Boise State University, Idaho, USA. He earned his Ph.D. from the Université Paris-Est, France, and subsequently held postdoctoral positions at the University of Wisconsin-Madison and Northwestern University. Dr. Da's primary research interests lie in the mechanics of materials, inverse engineering, and data-driven approaches. His work finds applications in advanced manufacturing and multifunctional materials and structures. Dr. Da is also the author of the book "Topological Design Optimization of Heterogeneous Materials and Structures," published by John Wiley & Sons.