Fracture characteristics and energy dissipation of textile bamboo fiber reinforced polymer
Journal
Polymers
Journal Volume
13
Journal Issue
4
Pages
1-13
Date Issued
2021
Author(s)
Chang C.-W
Abstract
The fracture theory of fiber-reinforced polymer (FRP) composites is complicated com-pared to that of homogeneous materials. Textile FRPs need to consider crimp, fiber off-axis and various weaving parameters in a two-dimensional scale, which makes research of failure and fracture difficult. The objective and main contribution of the present research lie in taking textile bamboo FRP as an example and using tools such as toughness, load and deflection curves analysis, energy analysis, and first-order derivative signals to establish the preliminary information needed for fracture theory. This is followed by observing the fracture characteristics of the material under bend-ing. The identification of fracture modes, corresponding energy, and energy dissipation are all pre-requisites for developing fracture models in the future. Differences in the direction of force, weaving method, and number of laminates will cause the amount and direction of fibers to vary, which makes the type and progression of fracture different. Combining signal analysis, fracture images and energy dissipation curves, there are different modes of fracture between various groups due to different energy storage forms and crack types, which ultimately lead to different energy dissipation behaviors. ? 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Subjects
Bamboo; Energy dissipation; Energy storage; Fiber reinforced plastics; Fibers; Textiles; Weaving; Deflection curves; Dissipation behavior; Fiber reinforced polymer composites; First order derivatives; Fracture characteristics; Homogeneous materials; Modes of fracture; Preliminary information; Fracture
SDGs
Type
journal article