Compliant mechanisms of fiber-reinforced plastic (FRP) have been developed to reduce the mechanical complexity of kinetic systems. In a further step, pneumatic actuation was integrated into the set-up of the FRP, offering lightweight, slender, and inconspicuous actuation. Inflation of an integrated cushion causes rotation through the asymmetric material lay-up. Inspiration from the ultrastructure of pressurized veins in arthropod wings has led to the development of a thin layer of elastomer surrounding this pneumatic cushion to avoid delamination. T-peel tests revealed that the elastomer forms a higher adhesion to itself than to glass-fiber-reinforced plastic (GFRP) layers with an epoxy matrix. The angle-pressure relationship for specific GFRP samples with a defined compliant hinge zone was investigated physically and numerically, showing good consistency between the two. Further, a mathematical model, taking into account the bending stiffness of the cushion-surrounding FRP layers, was developed, and a parametric study was conducted on the actuation angles.
%0 Journal Article
%1 mader2019bioinspired
%A Mader, Anja
%A Born, Larissa
%A Körner, Axel
%A Schieber, Gundula
%A Masset, Pierre-Alexandre
%A Milwich, Markus
%A Gresser, Götz T.
%A Knippers, Jan
%D 2019
%J Composite Structures
%K born gresser itft
%N 111558
%R 10.1016/j.compstruct.2019.111558
%T Bio-inspired integrated pneumatic actuation for compliant fiber-reinforced plastics
%U https://www.sciencedirect.com/science/article/pii/S0263822319306749?via%3Dihub
%X Compliant mechanisms of fiber-reinforced plastic (FRP) have been developed to reduce the mechanical complexity of kinetic systems. In a further step, pneumatic actuation was integrated into the set-up of the FRP, offering lightweight, slender, and inconspicuous actuation. Inflation of an integrated cushion causes rotation through the asymmetric material lay-up. Inspiration from the ultrastructure of pressurized veins in arthropod wings has led to the development of a thin layer of elastomer surrounding this pneumatic cushion to avoid delamination. T-peel tests revealed that the elastomer forms a higher adhesion to itself than to glass-fiber-reinforced plastic (GFRP) layers with an epoxy matrix. The angle-pressure relationship for specific GFRP samples with a defined compliant hinge zone was investigated physically and numerically, showing good consistency between the two. Further, a mathematical model, taking into account the bending stiffness of the cushion-surrounding FRP layers, was developed, and a parametric study was conducted on the actuation angles.
@article{mader2019bioinspired,
abstract = {Compliant mechanisms of fiber-reinforced plastic (FRP) have been developed to reduce the mechanical complexity of kinetic systems. In a further step, pneumatic actuation was integrated into the set-up of the FRP, offering lightweight, slender, and inconspicuous actuation. Inflation of an integrated cushion causes rotation through the asymmetric material lay-up. Inspiration from the ultrastructure of pressurized veins in arthropod wings has led to the development of a thin layer of elastomer surrounding this pneumatic cushion to avoid delamination. T-peel tests revealed that the elastomer forms a higher adhesion to itself than to glass-fiber-reinforced plastic (GFRP) layers with an epoxy matrix. The angle-pressure relationship for specific GFRP samples with a defined compliant hinge zone was investigated physically and numerically, showing good consistency between the two. Further, a mathematical model, taking into account the bending stiffness of the cushion-surrounding FRP layers, was developed, and a parametric study was conducted on the actuation angles.},
added-at = {2019-10-21T13:43:00.000+0200},
author = {Mader, Anja and Born, Larissa and Körner, Axel and Schieber, Gundula and Masset, Pierre-Alexandre and Milwich, Markus and Gresser, Götz T. and Knippers, Jan},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2e0db3810221f76835b62537b8dcccc32/itft-puma},
doi = {10.1016/j.compstruct.2019.111558},
interhash = {b8e66bedaec3ea7d750489f11df8b246},
intrahash = {e0db3810221f76835b62537b8dcccc32},
journal = {Composite Structures},
keywords = {born gresser itft},
month = oct,
number = 111558,
timestamp = {2019-10-21T11:43:00.000+0200},
title = {Bio-inspired integrated pneumatic actuation for compliant fiber-reinforced plastics},
url = {https://www.sciencedirect.com/science/article/pii/S0263822319306749?via%3Dihub},
year = 2019
}
