Monitoring of self-healing composites: a nonlinear ultrasound approach

Self-healing composites using a thermally mendable polymer, based on Diels-Alder reaction were fabricated and subjected to various multiple damage loads. Unlike traditional destructive methods, this work presents a nonlinear ultrasound technique to evaluate the structural recovery of the proposed se...

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Bibliographic Details
Published inSmart materials and structures Vol. 26; no. 11; pp. 115015 - 115031
Main Authors Fierro, Gian-Piero Malfense, Pinto, Fulvio, Iacono, Stefania Dello, Martone, Alfonso, Amendola, Eugenio, Meo, Michele
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.11.2017
Subjects
nonlinear ultrasound
phased array
self-healing composites
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Summary:Self-healing composites using a thermally mendable polymer, based on Diels-Alder reaction were fabricated and subjected to various multiple damage loads. Unlike traditional destructive methods, this work presents a nonlinear ultrasound technique to evaluate the structural recovery of the proposed self-healing laminate structures. The results were compared to computer tomography and linear ultrasound methods. The laminates were subjected to multiple loading and healing cycles and the induced damage and recovery at each stage was evaluated. The results highlight the benefit and added advantage of using a nonlinear based methodology to monitor the structural recovery of reversibly cross-linked epoxy with efficient recycling and multiple self-healing capability.
Bibliography:SMS-105395
ISSN:0964-1726
1361-665X
DOI:10.1088/1361-665X/aa89a8