Materials Engineering Faculty Candidate Seminar
"Nonlinear Viscoelastic Fracture Modeling of Bituminous Materials"
Jamilla Teixeira, Ph.D.
Lecturer, Associate Professor at the Department of Civil Engineering, Federal University of Espirito Santo
Monday | March 7, 2022 | 2:00PM-3:00PM
NH 181A or Zoom Link: https://unl.zoom.us/j94455069213
Abstract: Cracking of bituminous materials is one of the main distresses that results in roadway failure. As bituminous
media are highly rate-dependent at intermediate temperatures due to the viscoelastic nature of the binding materials,
cracking is also highly rate-dependent viscoelastic. Coupling experimental analysis based on laboratory testing results
to numerical analysis using finite element method, Dr. Teixeira has been advancing on the knowledge of bituminous
material’s characterization and performance prediction. To address the crack matter, Dr. Teixeira has been working
with discrete fracture models based on cohesive zone model (CZM). The CZM can predict the fracture process from
crack nucleation, initiation, and propagation to complete failure in different types of composites. This presentation will
briefly introduce the main ongoing research projects under Dr. Teixeira's coordination in Brazil. More specifically, Dr.
Teixeira will demonstrate the capability and feasibility of an extrinsic nonlinear CZM to predict the rate-dependent
cracking of bituminous materials, showing some recent research results and contributions to the pavement mechanics
community.
Bio: Dr. Teixeira is an Associate Professor of Civil Engineering in the Federal University of Espirito Santo, Brazil. Her
research focuses on infrastructure materials characterization including rheological, chemical, physical, and mechanical
laboratory experimentation, as well as computational modeling of composite materials based on microstructure multiscale models, viscoelasticity, and fracture mechanics. Since she obtained her Ph.D. in 2011 from the University of
Nebraska- Lincoln, she has been involved in projects sponsored by Brazilian funding agencies and industry sectors. She
is an invited member of Binder Performance Task Group of the Brazilian Association of Technical Standards (ABNT).
She has received national recognition from Brazilian governmental agencies such as CNPq Research Productivity
Scholarship and CAPES Scholarship grant for the Improvement of Higher Education Personnel. She continuously works
on regional/national /international technical committees and on editorial services in the field of materials and civil
infrastructure engineering.
More details at: https://unl.zoom.us/j94455069213