Damage detection, localization and quantification in conductive smart concrete structures using a resistor mesh model

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2017-10-01
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Downey, Austin
D’Alessandro, Antonella
Baquera, Micah
García-Macías, Enrique
Rolfes, Daniel
Ubertini, Filippo
Laflamme, Simon
Castro-Triguero, Rafael
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Aerospace Engineering

The Department of Aerospace Engineering seeks to instruct the design, analysis, testing, and operation of vehicles which operate in air, water, or space, including studies of aerodynamics, structure mechanics, propulsion, and the like.

History
The Department of Aerospace Engineering was organized as the Department of Aeronautical Engineering in 1942. Its name was changed to the Department of Aerospace Engineering in 1961. In 1990, the department absorbed the Department of Engineering Science and Mechanics and became the Department of Aerospace Engineering and Engineering Mechanics. In 2003 the name was changed back to the Department of Aerospace Engineering.

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1942-present

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  • Department of Aerospace Engineering and Engineering Mechanics (1990-2003)

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Mechanical Engineering
The Department of Mechanical Engineering at Iowa State University is where innovation thrives and the impossible is made possible. This is where your passion for problem-solving and hands-on learning can make a real difference in our world. Whether you’re helping improve the environment, creating safer automobiles, or advancing medical technologies, and athletic performance, the Department of Mechanical Engineering gives you the tools and talent to blaze your own trail to an amazing career.
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Aerospace EngineeringMechanical EngineeringCivil, Construction and Environmental EngineeringElectrical and Computer EngineeringCenter for Nondestructive Evaluation (CNDE)
Abstract

Interest in self-sensing structural materials has grown in recent years due to their potential to enable continuous low-cost monitoring of next-generation smart-structures. The development of cement-based smart sensors appears particularly well suited for structural health monitoring due to their numerous possible field applications, ease of use, and long-term stability. Additionally, cement-based sensors offer a unique opportunity for monitoring of civil concrete structures because of their compatibility with new and existing infrastructure. In this paper, we propose the use of a computationally efficient resistor mesh model to detect, localize and quantify damage in structures constructed from conductive cement composites. The proposed approach is experimentally validated on non-reinforced and reinforced specimens made of nanocomposite cement paste doped with multi-walled carbon nanotubes under a variety of static loads and damage conditions. Results show that the proposed approach is capable of leveraging the strain-sensing and damage-sensitive properties of conductive cement composites for real-time distributed structural health monitoring of smart concrete structures, using simple and inexpensive electrical hardware and with very limited computational effort.

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This is a manuscript of an article published as Downey, Austin, Antonella D’Alessandro, Micah Baquera, Enrique García-Macías, Daniel Rolfes, Filippo Ubertini, Simon Laflamme, and Rafael Castro-Triguero. "Damage detection, localization and quantification in conductive smart concrete structures using a resistor mesh model." Engineering Structures 148 (2017): 924-935. DOI: 10.1016/j.engstruct.2017.07.022. Posted with permission.

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Sun Jan 01 00:00:00 UTC 2017
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