Two-Way Slab Systems: Recent Developments and Showcases on Design, Analysis, Construction, and Evaluation Methods-Modeling of Reinforced and Fiber-Reinforced Concrete Slabs under Impact Loads (Recorded presentation)

Modeling of Reinforced and Fiber-Reinforced Concrete Slabs under Impact Loads (Recorded presentation)

Video Transcription

Video Summary

In his presentation, Trevor Hranek, an assistant professor, discusses previous research conducted at the University of Toronto on the modeling of reinforced and fiber-reinforced concrete slabs under impact. The work, which remains unpublished, aimed to address the need for impact-resistant design assessment crucial in various applications, from rock sheds to military fortifications. Hranek outlines the current modeling practices—macro and micro finite element procedures—and their limitations, particularly emphasizing the high workload and variability in results due to different material criteria choices. He describes an alternative modeling approach using a layered shell element procedure. This approach, developed at the University of Toronto in the early 90s, is cost-effective and distinct from traditional models. Based on experimental testing of eight slab-like elements, the research found that fiber reinforcement significantly enhances impact resistance. Hranek concludes that while promising, further alternative research is necessary to improve modeling accuracy and accessibility.

Keywords

impact-resistant concrete

finite element modeling

fiber reinforcement

layered shell element

University of Toronto