TY - JOUR
T1 - Role of super-elastic shape memory alloy (SE-SMA) embedment designs on energy absorption in GFRP composites
AU - Mishra, Vagish D.
AU - Andrew, J. Jefferson
AU - Mishra, Ashish
AU - Verma, Luv
AU - Sivakumar, Srinivasan M.
AU - Vedantam, S.
AU - Dhakal, H. N.
N1 - Publisher Copyright:
© 2022 The Authors
PY - 2022/6/15
Y1 - 2022/6/15
N2 - 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.
AB - 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.
KW - Digital image correlation (DIC)
KW - Energy absorption characteristics
KW - Glass/epoxy composite laminates
KW - Low-velocity impact
KW - Quasi-static indentation
KW - Super-elastic shape memory alloys (SE-SMA)
UR - http://www.scopus.com/inward/record.url?scp=85132362878&partnerID=8YFLogxK
U2 - 10.1016/j.mtcomm.2022.103779
DO - 10.1016/j.mtcomm.2022.103779
M3 - Article
AN - SCOPUS:85132362878
VL - 31
JO - Materials Today Communications
JF - Materials Today Communications
M1 - 103779
ER -