Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 6, Number 4, June 1998 , pages 363-375
DOI: https://doi.org/10.12989/sem.1998.6.4.363
 


Contact surface element method for two-dimensional elastic contact problems
Liu ZX, Yang YW, Williams FW, Jemah AK

 
Abstract
    The stiffness matrix of a two-dimensional contact surface element is deduced from the principle of virtual work. The incremental loading procedure used is controlled by displacement and stress. Special potential contact elements are used to avoid the need to rearrange the FEM mesh due to variations of the contact surface as contact develops. Published results are used to validate the method, which is then applied to a turbine to solve the contact problem between the blade root and rotor in the region in which a \'push fit\' connects the blade to its rotor.
 
Key Words
    elastic contact, contact surface element, potential contact element
 
Address
Liu ZX, Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200030, Peoples R China
Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200030, Peoples R China
Univ Wales, Cardiff Sch Engn, Div Struct Engn, Cardiff CF2 3TB, S Glam, Wales
 

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