论文信息 - A dynamic analysis of unstable crack propagation and arrest in the DCB test specimen

A dynamic analysis of unstable crack propagation and arrest in the DCB test specimen

A simple analytical model is developed to accompany experimental work on rapid crack propagation and arrest in the DCB test specimen. The present work extends the beam-on-elastic foundation model used previously by taking account of shear deformation and of both translational and rotary inertia. Crack speeds predicted with the model are found to be in good agreement with the constant-speed behavior observed experimentally. It is demonstrated that kinetic energy makes an important contribution to maintaining unstable crack propagation and to crack arrest.

M. F. Kanninen | M. Kanninen

[1] G. T. Hahn,et al. Rapid crack propagation in a high strength steel , 1974, Metallurgical and Materials Transactions B.

[2] Arnold D. Kerr,et al. Elastic and Viscoelastic Foundation Models , 1964 .

[3] J. P. Berry. Some kinetic considerations of the Griffith criterion for fracture—I: Equations of motion at constant force , 1960 .

[4] S. Timoshenko,et al. LXVI. On the correction for shear of the differential equation for transverse vibrations of prismatic bars , 1921 .

[5] Sheldon M. Wiederhorn,et al. Critical Analysis of the Theory of the Double Cantilever Method of Measuring Fracture‐Surface Energies , 1968 .

[6] S. Timoshenko,et al. X. On the transverse vibrations of bars of uniform cross-section , 1922 .

[7] M. F. Kanninen,et al. Inelastic Behavior of Solids , 1970, Science.

[8] G. Cowper. The Shear Coefficient in Timoshenko’s Beam Theory , 1966 .

[9] R. Jaffee,et al. Deformation and fracture of high polymers. , 1973, Science.