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dc.contributor.authorAbdul Hamid, Mohd Kameil
dc.contributor.authorStachowiak, Gwidon
dc.date.accessioned2017-01-30T12:25:06Z
dc.date.available2017-01-30T12:25:06Z
dc.date.created2014-03-24T20:00:46Z
dc.date.issued2009
dc.identifier.citationAbdul Hamid, M.K. and Stachowiak, G.W. 2009. Effect of Hard Particle Grit Size on Friction Coefficients and Embedment of Automotive Braking. Jurnal Mekanikal. 29: pp. 1-18.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/21431
dc.description.abstract

The effect of hard particle grit size on friction coefficients and particle embedment of braking system was investigated using a model brake test rig. Silica sand grit sizes ranging from 180 - 355 µm were used in drag and stop mode braking application and results were compared to the tests without the grit particles in order to determine the changes in friction coefficient (CoF) and the percentage ofparticle embedment. Sliding speeds of 4 m/s, 8 m/s, 10 m/s and 12 m/s at constant pressures of 0.6 MPa, 0.8 MPa and 1 MPa were applied during the tests. Results showed that the presence of hard particles and grit size has significant effect on the CoF values. The values of CoF tend to reduce when grit particles are present. However, CoF values increase with sliding speed and applied pressure. Weardebris and particle embedment of silica sand was analyzed using SEM and optical microscopy after the test. Particle embedment (PE) of 1- 2 % of the pad area was observed. Fragmentation of hard particle has occurred only at high applied pressures. Also correlation between PE and CoF values was found to be slightly an inverse relationship as small reduction of CoF values with higher percentageof PE was determined.

dc.publisherUniversiti Teknologi Malaysia
dc.relation.urihttp://jurnalmekanikal.fkm.utm.my/?id=No_29_&pid=705
dc.subjectsilica sand
dc.subjectBraking systems
dc.subjecthard particles grit size
dc.subjectparticle embedment
dc.subjectfriction coefficients
dc.titleEffect of Hard Particle Grit Size on Friction Coefficients and Embedment of Automotive Braking
dc.typeJournal Article
dcterms.source.volume29
dcterms.source.startPage1
dcterms.source.endPage18
dcterms.source.issn0127-3396
dcterms.source.titleJurnal Mekanikal
curtin.department
curtin.accessStatusFulltext not available


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