Dynamic fracture in two-phase ceramic composite microstructures is analyzed explicitly using a cohesive finite element method (CFEM). This framework allows the effects of microstructural heterogeneity, phase morphology, phase distribution, and size scale to be quantified. The analyses consider arbitrary microstructural phase morphologies and entail explicit tracking of crack growth and arbitrary fracture patterns. The approach involves the use of CFEM models that integrate cohesive surfaces along all finite element boundaries as an intrinsic part of the material description. This approach obviates the need for any specific fracture criteria and assigns models the capability of predicting fracture paths and fracture patterns. Calculations are carried out using idealized phase morphologies as well as real phase morphologies in actual material microstructures. Issues analyzed include the influence of microstructural morphology on the fracture behavior, the influence of phase size on fracture resistance, the effect of interphase bonding strength on failure, and the effect of loading rate on fracture.
Micromechanical Simulation of Dynamic Fracture Using the Cohesive Finite Element Method
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division January 6, 2003; revision received December 2, 2003. Associate Editor: M. P. Miller.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Zhai , J., Tomar , V., and Zhou, M. (March 18, 2004). "Micromechanical Simulation of Dynamic Fracture Using the Cohesive Finite Element Method ." ASME. J. Eng. Mater. Technol. April 2004; 126(2): 179–191. https://doi.org/10.1115/1.1647127
Download citation file:
- Ris (Zotero)
- Reference Manager