I want to compare the experimental results of wear rate of novel metal matrix composite conducted on pin on disc tribometer with the FEM.
Anyone who works on this area.....Plz reply...
It is very interesting question. Following.
In disc tribometer, the wear rate is defined as the total volume removed from specimen divided by the sliding length. The calculation of removed volume may differ depending on the FE software package used. For example, it can be done in ABAQUS by determining the overall number of failed elements multiplied by the volume of each element. The number of failed elements is usually reported by ABAQUS after the simulation in a separate file. On the other hand, the sliding distance can be directly calculated using this formula = (pi*D*N*t/60,000) where t is step time involved in ABAQUS.
Regards.
Thank you ...Yahya
Are you working in that area Or published a research paper? If yes then pl send me some reference paper if possible..
Many thanks
FEA programs offer the possibility to implement a wear model in a user subroutune. Arguably one of the most wide-spread wear models and a good starting point for a wear simulation analysis is Archard's wear model.
What FEA wear analyses have in common, is the reduction of the mesh volume as a result of a wear model. This can be done by repeatedly adapting an existing mesh in the region of the wear contact. Alternatively, when the wear amount is greater than the element size, a global remeshing of the geometry is needed.
Some implementations, that may be relevant, are listed below.
Podra, P.; Andersson, S.: Simulating Sliding Wear with Finite Element Method. In: Tribology International 32 (1999), pp. 71–81.
Hegadekatte, V.; Huber, N.; Kraft, O.: Finite Element Based Simulation of Dry Sliding Wear. In: Modelling and Simulation in Materials Science and Engineering 13 (2005), pp. 57–75.
Hegadekatte, V.; Huber, N.; Kraft, O.: Modeling and Simulation of Wear in a Pin on Disc Tribometer. In: Tribology Letters 24 (2006), Nr. 1, pp. 51–60.
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