Dynamic Finite Element Analysis for Contact Stress of Dynamic Consolidation

Abstract:

Based on Abaqus/explicit dynamics finite element program, an ax symmetrical numerical model, the infinite fringe condition and friction contact condition were built, and then the surface contact stress condition of the dynamic consolidation was studied. The time-load properties of dynamic consolidation, the spread law of contact pressure for rammer bottom and the friction influence to contact stress between the hammer and foundation were gained. The results indicate that the dynamic consolidation load can be simplified to triangular load with the weight of the hammer itself; the contact stress distribution between the hammer and the foundation is not uniform; and frictionless contact hypothesis can led errors to the simulated result.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 502-506
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.502
• Online since: August 2013
• Authors: Fu Yuan Zhang, Deng Yuan Zhu, Shou Ren Ge, Xiao Bao Sun
• Keywords: Contact Stress, Dynamic Consolidation, Dynamic FEM, Foundation Strengthen

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