Journal
ENGINEERING COMPUTATIONS
Volume 17, Issue 6-7, Pages 680-702Publisher
EMERALD GROUP PUBLISHING LIMITED
DOI: 10.1108/02644400010340615
Keywords
peening; numerical simulation; finite element method; discrete element method; dynamic simulation
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Following earlier work on the combined finite/discrete element simulation of shot peening process in 2D case, 3D representation of the problem is established with respect to DE modelling and contact interaction laws. An important relevant computational issue regarding the critical time step is carefully studied, and a newt time stepping scheme that can ensure both short and long term stability of the contact models is developed Numerical tests are performed to evaluate Nle Proposed normal and frictional contact interaction laws with various model parameters. The influences of single and multiple shot impact, as well as element sizes are also numerically investigated. The established contact interaction laws can also be applied to other multi-body dynamic simulations.
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