Journal article
Mixed-Mode Fracture of Hybrid Material Bonded Interfaces under Four-Point Bending
Journal of aerospace engineering, Vol.24(2), pp.218-226
04/01/2011
Handle:
https://hdl.handle.net/2376/109104
Abstract
A combined analytical and experimental approach is presented to characterize mixed-mode fracture of hybrid material bonded interfaces under four-point bending load, and closed-form solutions of compliance and energy release rate (ERR) of the mixed-mode fracture specimens are provided. The transverse shear deformations in each sublayer of bimaterial bonded beams are included by modeling the specimen as individual Timoshenko beams, and the effect of interface crack-tip deformation on the compliance and ERR are taken into account by applying the interface deformable bilayer beam theory (flexible-joint model). The higher accuracy of the present analytical solutions for both the compliance and ERR of mixed-mode fracture specimens is manifested by comparing them with the solutions predicted by the conventional beam theory (CBT) and finite-element analysis (FEA). As an application example, the fracture of wood–fiber-reinforced plastic (FRP) bonded interface is experimentally evaluated by using mixed-mode fracture specimens [i.e., four-point asymmetric end-notched flexure (4-AENF) and four-point mixed-mode bending (4-MMB)], and the corresponding values of critical ERRs are obtained. Comparisons of the compliance rate change and the resulting critical ERR based on the CBT, the present theoretical model, and FEA demonstrate that the crack-tip deformation plays an important role in accurately characterizing the mixed-mode fracture toughness of hybrid material bonded interfaces under four-point bending load.
Metrics
11 Record Views
Details
- Title
- Mixed-Mode Fracture of Hybrid Material Bonded Interfaces under Four-Point Bending
- Creators
- Pizhong Qiao - Washington State Univ. , Dept. of Civil and Environmental Engineering, , Pullman, WA 99164-2910 (corresponding author). E-mailFangliang Chen - Washington State Univ. , Dept. of Civil and Environmental Engineering, , Pullman, WA 99164-2910Cole S Hamey - Former Doctoral Student and Graduate Research Assistant, Dept. of Civil Engineering, Univ. of Akron, Akron, OH 44325-3905Jialai Wang - Univ. of Alabama , Dept. of Civil, Construction, and Environmental Engineering, , Tuscaloosa, AL 35487-0205
- Publication Details
- Journal of aerospace engineering, Vol.24(2), pp.218-226
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- American Society of Civil Engineers
- Identifiers
- 99900547518301842
- Language
- English
- Resource Type
- Journal article