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Unformatted text preview: ype(s): Static Analysis (ANTYPE = 0) Element Type(s): 2-D Point-to-Point Contact Elements (CONTAC12) Input Listing: vm29.dat Test Case
A support block is acted upon by forces Fx and Fy. For a given value of Fy determine the smallest value of Fx which
will prevent the support block from sliding down the plane. Also determine the normal force Fn and sliding force
Fs at the interface. Figure 29.1 Support Block Problem Sketch Material Properties
µ = 0.3 Geometric Properties
Θ = 205 Loading
Fy = 100 lb Analysis Assumptions and Modeling Notes
A real problem of this nature would be solved in a trial-and-error, iterative fashion. In this case the theoretical
answer is known, so the solution is verified by the “backward” process described below.
The normal stiffness of the sticking interface is arbitrarily selected at a high value. A value slightly greater than
the calculated Fx value of 5.76728 lb is input in the first load step. A slightly lesser value is input in the second
load step. The number of substeps is limited to one to prevent divergence due to the free moti...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.
- Spring '09
- The Land