Abstract

The feasibility of hybrid -fiber-reinforced-polymer rods that demonstrate the important safety features of self-monitoring capability and pseudo-ductility is demonstrated. The rods are intended to be the basis of improved pultruded reinforcements for concrete or other civil applications where safety is of critical importance. The lowest elongation fiber in the seven rods investigated is carbon, which by virtue of its piezo resistivity allows the monitoring of deformation and fracture throughout an entire rod with simple electronic equipment. Resistance measurements obtained during quasi-static tests clearly reveal failure of the carbon fibers. Following this easily detected event, higher loads can be safely sustained by the remaining high-elongation fibers if the carbon tows are dispersed in the cross-section rather than concentrated in one location. © 2001 Elsevier Science Ltd. All rights reserved.

Department(s)

Civil, Architectural and Environmental Engineering

Comments

National Science Foundation, Grant MSS-9319802

Keywords and Phrases

A. Hybrid composites; A. Smart materials; B. Electrical properties; Concrete reinforcement; E. Pultrusion

International Standard Serial Number (ISSN)

0266-3538

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Elsevier, All rights reserved.

Publication Date

01 May 2001

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