Re-Evaluating the Concept of FCM
Special Warren Lecture in Honor of Robert Dexter
Robert Connor
Civil Engineering, Purdue University
ABSTRACT: Significant advances have been made in the understanding of fracture mechanics, material toughness, fatigue crack initiation and growth, and fabrication and inspection technologies since the inception of the original fracture control plan (FCP) in 1978. Currently, the components of the FCP are divided between independent specifications addressing material, design, fabrication, and inspection. Combining each of these aspects of fracture prevention with the advances made since the 1978 FCP, a new, integrated FCP can be formed. An integrated FCP has the ability to be reliability-based, making fracture no more likely than any other limit state, thereby increasing steel bridge safety and providing an economic benefit to owners though a better allocation of resources. Connor discusses the components of an integrated FCP and considerations that must be evaluated when forming an integrated FCP. (Photo by Theodore Galambos.)
