|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Biological Materials Science Symposium
||Influence of Interface on the Fracture of Bio-inspired Laminated Composites
||Tao Qu, Chandra Prakash, Vikas Tomar
|On-Site Speaker (Planned)
The interfaces between organic and inorganic phases in natural materials were shown to be the key factor contributing to the high performance of the materials. This work presents a prediction of the fracture properties of the laminated composites with biological material constituents and organic (chitin)-inorganic (calcite) interfaces subjected to uniaxial tensile loadings. The XFEM and CZM simulations coupled with theoretical analysis are used to study both fracture modes and free edge issues. Cohesive parameters of interface are derived from the steered molecular dynamics based on nanomechanics. Analyses indicate that interface has significant effect on the delamination as well as the intra-laminar fracture resistance. Theoretical predictions for the interfacial fracture energy release rate based on the phase angle of mode-mix are derived to illustrate the interface effect. Further, the concept of interface database system, which quantitatively relates the interface property-performance of laminated composites-structural parameters, is proposed.
||Planned: Publication Outside of TMS (Indicate publication title and publisher if known.)