Molecular dynamics investigation of spall fractures

A. M. Krivtsov; Yuri I. Mescheryakov

doi:10.1117/12.347422

5 May 1999 Molecular dynamics investigation of spall fractures

A. M. Krivtsov, Yuri I. Mescheryakov

Proceedings Volume 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (1999) https://doi.org/10.1117/12.347422
Event: International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 1998, St. Petersburg, Russian Federation

Abstract

Molecular dynamics investigation of central impact of thin plate impactor to target form the same material is presented. The particles are interpreted as elements of the mesoscopic scale level. Relation of the strain, velocity, and dispersion inside the material on the longitudinal coordinate z is investigated. It is shown that the particle velocity dispersion is initialized by the shock wave front and follows it with a small delay. From the computer experiments it follows that in spite of the double free surface velocity rise the velocity dispersion on the free surface doesn't increase. Kinetic processes in the zone of the spall fracture are investigated.

Citation Download Citation

A. M. Krivtsov and Yuri I. Mescheryakov "Molecular dynamics investigation of spall fractures", Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); https://doi.org/10.1117/12.347422

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