Dynamic Response and Fracture of Composite Gun Tubes | Zendy

Jerome T. Tzeng | Zendy

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Dynamic Response and Fracture of Composite Gun Tubes

Author(s) -

Jerome T. Tzeng

Publication year - 2001

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2001/349193

Subject(s) - projectile , materials science , fracture (geology) , tube (container) , composite number , structural engineering , anisotropy , mechanism (biology) , composite material , front (military) , dynamic pressure , dynamic loading , mechanics , engineering , mechanical engineering , physics , optics , quantum mechanics , metallurgy

The fracture behavior due to dynamic response in a composite gun tube subjected to a moving pressure has been investigated. The resonance of stress waves result in very high amplitude and frequency strains in the tube at the instant and location of pressure front passage as the velocity of the projectile approaches a critical value. The cyclic stresses can accelerate crack propagation in the gun tube with an existing imperfection and significantly shorten the fatigue life of gun tubes. The fracture mechanism induced by dynamic amplification effects is particularly critical for composite overwrap barrels because of a multi-material construction, anisotropic material properties, and the potential of thermal degradation

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