Role of super-elastic shape memory alloy (SE-SMA) embedment designs on energy absorption in GFRP composites
In this paper, we experimentally investigate the energy absorption characteristics of super‐elastic shape memory alloy (PE‐SMA) integrated in a flexible glass/epoxy composites fabricated using vacuum‐assisted resin infusion (VARI) process. The composite samples have three different PE-SMA configurat...
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Published in | Materials today communications Vol. 31; p. 103779 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.06.2022
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Subjects | |
Online Access | Get full text |
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Summary: | In this paper, we experimentally investigate the energy absorption characteristics of super‐elastic shape memory alloy (PE‐SMA) integrated in a flexible glass/epoxy composites fabricated using vacuum‐assisted resin infusion (VARI) process. The composite samples have three different PE-SMA configurations, characterized by length variation (35, 70, 150 mm) and anchored/unanchored (35 and 70 mm anchored and 150 mm unanchored). Quasi-static (tensile and indentation (QSI)) and dynamic (low-velocity impact (LVI)) mechanical tests were performed on the composite samples, and the changes in energy absorption characteristics and damage tolerance at strain rates ranging from 8.41 to 952.1/s were compared with the homogeneous glass/epoxy samples. Experiments performed on three SMA-based samples reveal that the 70 mm SMA wire samples, due to their relatively higher SMA deformation and restricted pull-out, show around 13- and a 27-fold increase in absorbed energy under QSI and LVI, respectively, compared with homogeneous glass/epoxy samples.
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ISSN: | 2352-4928 2352-4928 |
DOI: | 10.1016/j.mtcomm.2022.103779 |