Title: Fracture Mechanics Approaches to Modeling the Pullout of Anchor Bolts
Author(s): L. Elfgren and S. E. Swartz
Publication: Symposium Paper
Appears on pages(s): 63-78
Keywords: anchors (fasteners); cracking (fracturing); crack propagation; damage; finite element method; fracture properties; models; research; Design
Summarizes and presents preliminary results of a round-robin analysis of anchor bolts organized by RILEM TC 90-FMA, Fracture Mechanics of Concrete-Applications. The analyses employed finite element models using fracture mechanics approaches for the most part. The assumptions used in establishing the material/cracking models varied with investigator and included linear elastic fracture mechanics (LEFM), the fictitious crack model (FCM) with linear softening or non-linear softening, a fixed crack line, a variable crack line with non-rotating cracks or rotating cracks. Crack propagation was determined using Mode I parameters, in some cases, with consideration of mixed mode behavior.