Validated FE model for predicting asphalt concrete overlay reflective cracking potential

By Aravind Ramakrishnan on 04/04/2024 from 2:00 p.m. to 3:00 p.m. in 1611 Titan Dr., Rantoul, IL 61866

Join Aravind Ramakrishnan, of the University of Illinois Urbana-Champaign, as he presents in person at the Spring 2024 Kent Seminar Series Thursday, April 4, from 2-3 p.m. (CT).

The Spring 2024 semester is set to feature 14 presentations, each addressing a topic related to modeling and mechanics in transportation. See the full lineup of speakers for Spring 2024.

Pizza and soft drinks will be provided beginning at 1:30 p.m. in the ICT Classroom. 

All presentations will be held on Zoom, but some speakers will present in person at ICT.

Join Zoom Meeting 
https://illinois.zoom.us/j/89226656958?pwd=bzRFbnM4Y0hrdlJ5TFZ2M2xlbStUQT09

Meeting ID: 892 2665 6958
Password: 535829

Abstract and Bio

Reflective cracking in overlays is more efficiently assessed with a newly developed 3D finite element (FE) model, which simulates large-scale tests and calculates key fracture parameters like the stress intensity factor (SIF) and J-integral. Validated by real-world testing, this model offers a reliable metric for determining an overlay’s potential for reflective cracking and allows for the comparison of various configurations. Enhanced by a database of 128 scenarios, its predictive accuracy is high, and a user-friendly surrogate model aids engineers in selecting the optimal asphalt mixtures and overlay thicknesses to control cracking.

Ramakrishnan is a doctoral student at the University of Illinois Urbana-Champaign, working under Dr. Imad Al-Qadi. He earned his bachelor’s degree at the Indian Institute of Technology Madras and his master’s from the University of Illinois Urbana-Champaign. His research centers on the material characterization, mechanics, and modeling of asphalt pavements. Ramakrishnan has participated in projects funded by agencies including the Illinois Department of Transportation and the Center for Connected and Automated Transportation, focusing on truck platooning and reflective cracking.