OS-E: 0160 Nonlinear Static Analysis of Snap Fit Assembly Using Continuous Sliding
Demonstrates the effect of continuous sliding in Nonlinear Static (large displacement)
Analysis.
Continuous sliding allows for the incorporation of continuous (large) relative sliding
between the main and secondary. Contact is updated for every iteration. Continuous sliding
contact is expected to produce more accurate results and, in some cases, better convergence
robustness, especially when very large sliding and/or distortion are present. Figure 1. FE Model
Model Description
The Finite element model shown in Figure 1, is constrained with symmetric boundary conditions and applied
prescribed displacement in the X-axis.
FE Model
Elements Types
CTETRA
RBE2
The linear material properties are:
MAT1
Young’s Modulus
5E3 MPa
Poisson's Ratio
0.3
Density
1.1E-9
Results
Contact Force plot in the Snap Fit Assembly. Figure 2. Contact Force (Y) for Node 58171
Deformation of the Snap Fit Assembly. Figure 3. Deformed State of the Snap Fit Assembly
Element Stress in the Snap Fit Assembly. Figure 4. Element Stress Plot of the Snap Fit Assembly
