imulation Of Rutting Profiles Using A Viscoplastic Model  

Oleh:

Park, Dae-Wook

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: KSCE Journal of Civil Engineering vol. 11 no. 3 (May 2007), page 151-156.
Topik: Vicoplastic model; Drucker-prager; Rutting Profiles; Comprehenssive Strength Test

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: KK25 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The development of high speed computer has encouraged researchs to increasingly utilize the finite element method (FEM) to simulate more realistic pavement structures and loading conditions in their efforts to predict the performance of asphalt pavements. Analysis of pavement materials using mechanistic constitutive materials is an integral part ofthese efforts. An ellasticviscoplastic continuum model based on Perzyna's viscoplastic theory and the Drucker-Prager yield function is proposed to simulate the permanent deformation of a hot mix asphalt (HMA) mixture at WesTrack. Compressive strength test were performed at different strain rates and confinement pressures to obtain the elastic-viscoplastic constitutive material parameters. The test temperature was 60'C based on the critical temperature fo permanent deformation at 12.5 mm of the WesTrack replacement section. Permanent deformation of the replacement section was simulated by the three dimensional FEM program, ABAQUS. The same trend of rutting profiles was obtain for both measured and the simulated rutting profiles.

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