Compliant Joint Model

The Compliant Joint Model (CJM) was chosen for the mechanical calculations for this analysis. The CJM uses an equivalent continuum approach to model the behavior of jointed media. An equivalent continuum approach captures the average response of a jointed rock mass by distributing the response of the individual joints throughout the rock mass. The CJM in JAS3D can model up to four joint sets of arbitrary orientation, with the fractures in each set assumed to be parallel and evenly spaced. The intact rock between joints is treated as an isotropic linear-elastic material. More detailed descriptions of the CJM model can be found in Chen (1991). 

L. Shih, A. A. Frank, and B. Ravani. Dynamic Simulation of Legged Machines Using a Compliant Joint Model. The International Jounal of Robotics Research, 6(4) 33-46, Mnter 1987. 

DOWSON, D. and JIN, Z.M. Micro-elastohydrodynamic lubrication of synovial joints, Engng Med., 1986, 15. 2, 63-65. SMITH, T.J. Numerical modelling of the transient elastohydrodynamic lubrication of compliant surface layers, MASc Thesis, Dept, of Mech. Eng., University of Waterloo, 1985. 

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