NonRigidInterfaceDCB_EFM_FINAL.pdf (607.58 kB)
Partition of mixed modes in double cantilever beams with non-rigid elastic interfaces
journal contribution
posted on 2011-12-02, 13:36 authored by Simon WangSimon Wang, Christopher HarveyChristopher Harvey, Liangliang GuanThe authors’ existing mixed-mode partition theories for rigid interfaces are extended to non-rigid
cohesive interfaces for layered isotropic double cantilever beams. Within the context of Euler
beam theory, it is shown that the two sets of orthogonal pure modes coincide at the first set of
pure modes due to the absence of any crack tip stress singularity for a non-rigid interface. The
total energy release rate in a mixed mode is then partitioned using this first set of pure modes
without considering any ‘stealthy interaction’. Within the context of Timoshenko beam theory, it
is shown that the mode II component of energy release rate is the same as that in Euler beam
theory while the mode I component is different due to the through-thickness shear effect. Within
the context of 2D elasticity, a mixed-mode partition theory is developed using the two sets of
orthogonal pure modes from Euler beam theory with rigid interfaces and a powerful orthogonal
pure mode methodology. Numerical simulations are conducted to verify the theories.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Published in
Engineering Fracture MechanicsCitation
WANG, S., HARVEY, C. and GUAN, L., 2013. Partition of mixed modes in double cantilever beams with non-rigid elastic interfaces. Engineering Fracture Mechanics, article in pressPublisher
© ElsevierVersion
- AM (Accepted Manuscript)
Publication date
2013Notes
This article was published in the journal, Engineering Fracture Mechanics [© Elsevier] and the definitive version is available at: http://dx.doi.org/10.1016/j.engfracmech.2013.09.005.ISSN
0013-7944Language
- en