AN ANALYTICAL MODEL FOR PREDICTING CRACK PROPAGATION IN FRACTURE OPENING MODE (MODE-I)

A. K.  El-Senussi

doi:10.66411/jer.v5i5.394

Authors

A. K. El-Senussi Aeronautical Engineering Department Al-Fateh University, Tripoli- Libya Author

DOI:

https://doi.org/10.66411/jer.v5i5.394

Keywords:

Analytical model, Crack propagation, Opening mode (Mode-1), Double cantilever Beam test specimen

Abstract

The majority of fracture failure problems are attributed to the opening mode (Mode- I). This feature is mainly imposed by the way constructions are employed to fulfill a particular job.

A simple and reliable analytical model representing a tapered double cantilever beam (TDCB) is presented for studying stable crack propagation in the opening mode (Mode-I). The model accounts for the end deflection associated with deformations beyond the crack tip. Deformation of the uncracked portion allows each arm of the TDCB to rotate about the built-in end, producing an end deflection in addition to those caused by bending and shear. The model agrees very well with published experimental results for a crack to specimen lengths up to 70%. The good agreement of the measured values with the theoretical predictions makes this model a potential tool for studying crack propagation in corrosion fatigue problems

References

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