[Faculty] Fwd: [CSRC.COLLOQUIUM] REMINDER "Multifunctional Cementitious Materials for Addressing Infrastructure Challenges"

[Jose Castillo]

Director/Professor
Computational Science Research Center
San Diego State University
5500 Campanile Dr
San Diego CA 92182-1245
www.csrc.sdsu.edu


---------- Forwarded message ---------
From: CSRC Colloquium <csrc.colloquium at sdsu.edu>
Date: Wed, Apr 17, 2019 at 8:47 AM
Subject: [CSRC.COLLOQUIUM] REMINDER "Multifunctional Cementitious Materials
for Addressing Infrastructure Challenges"
To: CSRC Colloquium <csrc.colloquium at sdsu.edu>


<https://lh3.googleusercontent.com/-ZPFNPh16sR0/Wt39FrXUP-I/AAAAAAAAAaw/3wQunGe20lUopmV_ggfPaDwE9cVAgVzxgCLcBGAs/s1600/image001.jpg>

DATE:  *Friday, April 19, 2019*


TITLE:


* Multifunctional Cementitious Materials for Addressing Infrastructure
Challenges*


TIME:  *3:30PM*



LOCATION:  *GMCS 314*



SPEAKER/BIO:


*Dr. Mo Li, Assistant Professor of *
*Civil and Environmental Engineering, University of California-Irvine*




ABSTRACT:
Today’s needs to improve concrete infrastructure service life and
resilience are challenged by the intrinsic quasi-brittleness of concrete
materials, and the difficulty with spatial damage sensing to inform timely
maintenance and prevent structural failure. Concrete is susceptible to
cracking and deterioration under service conditions and damage under
extreme hazard events. Current management practices of concrete
infrastructure rely on visual inspections that can be subjective and are
limited to accessible locations. Structural health monitoring approaches
mainly depend on point-based sensors that provide local measurements and
cannot spatially locate or quantify damage such as cracking and corrosion.
To tackle these challenges, this work focuses on a new direct, spatial
sensing approach based on novel multifunctional cementitious materials.
Multifunctional cementitious materials are encoded with a distributed
microcracking damage process coupled with damage self-sensing capacity. The
sequential formation of steady-state microcracks during material
strain-hardening stage leads to a prolonged damage process and high damage
tolerance, while allowing detection of damage level long before failure
occurs. The tailored electromechanical behavior of the material enables
strain and damage self-sensing functionalities during elastic and
post-cracking stages. Through advances in novel tomography methods, spatial
mapping offering a visual depiction and quantification of damage in
concrete members is achieved by electrical probing only from the
boundaries. This talk highlights the research on these developments at the
interface of science and engineering.


BIOGRAPHY:
Dr. Mo Li is an Assistant Professor of Civil and Environmental Engineering
at the University of California, Irvine. She received her M.S. in Civil
Engineering, M.S. in Industrial and Operations Engineering, and Ph.D. in
Civil Engineering from the University of Michigan, Ann Arbor. She did her
undergraduate studies at Tongji University in China. Her research focuses
on nonconventional infrastructure materials, and their interfaces with
structural engineering, sensing, and advanced manufacturing methods.
Examples are infrastructure materials with intrinsic and repeatable
self-healing capacity, bio-inspired self-sensing and visualization of
spatial damage in concrete structures, damage-tolerant geopolymers, and 3D
printing concrete for highly loaded structures. She is the recipient of the
Samueli Faculty Career Development Professorship, the Innovation in
Teaching Award, and is the Director of the Advanced and Multifunctional
Infrastructure Materials and Manufacturing Research Laboratory (AM3-Lab) at
UCI. She has served as a principle investigator for a number of federal-,
state- and industry-funded projects.


Host: Satchi Venkataraman, Aerospace Engineering

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