Results 251 to 260 of about 171,799 (304)

Permanent Deformation of Bearing Raceway Surfaces

A S L E Transactions, 1976
Depths of permanent deformation, resulting from the heavily stressed contact of a cylindrical roller on a bearing raceway surface, are evaluated by employing an analytical treatment of elasto-plastic bodies in line contact. Constitutive relations, resulting from that analysis obtained by employing the incremental theory of plasticity in conjunction ...
M. J. Hartnett, A. N. Palazotto
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Earthquake‐Induced Permanent Deformations: Probabilistic Approach

Journal of Geotechnical Engineering, 1991
A simple procedure for estimating earthquake‐induced permanent deformations of earth dams, embankments and slopes is presented. The analytical model is based on computed permanent deformations obtained by using Newmark's sliding‐block analysis and actual recorded acceleration time histories.
M. K. Yegian, E. A. Marciano, V. G. Ghahraman   +2 more
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Modeling Permanent Deformation under Repetitive Loads

Geo-Congress 2014 Technical Papers, 2014
Analysis of long-term performance of pavement sections under wheel loads is normally conducted in two separate steps: first, estimation of the resilient response based on a mechanistic model; second, calculation of the permanent deformation from empirical equations.
J. Ahn, J. Oh, Y. Kim, J. W. Jung
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Permanent Deformation in Flexible Pavements

Journal of Transportation Engineering, 2004
This paper presents a mechanistic-empirical framework for evaluating permanent deformation in flexible pavements. The procedure uses rational material properties and can be used as an analysis tool, as a companion to the design method. The material properties required are (1) the stress dependent modulus of the pavement layers, asphalt concrete and ...
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Permanent Deformation Behaviour of Granular Materials

Road Materials and Pavement Design, 2005
The paper describes the accepted understanding of the shakedown concept. The results of several repeated load triaxial tests performed on crushed rock aggregates at different stress levels for a large number of repetitions of loading are given. The development of the resulting permanent deformation which accumulates with the repeated loading is ...
Sabine Werkmeister, Andrew R. Dawson, Frohmut Wellner   +2 more
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Permanent Deformation in Asphaltic Materials

Transportation Engineering Journal of ASCE, 1974
This review investigates traffic load-associated causes of permanent deformation in asphaltic materials. The environmental effects of temperature and moisture are also considered insofar as they affect the deformation process. Deformation in nonasphaltic layers which may contribute to deformation of the asphaltic layers they support is also given ...
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Permanent deformation of polymer modified bitumen

2012
Bitumen (BIT) has been used in most road applications for many decades as the binder for asphalt. The most common distresses directly associated with the binder phase in road are a permanent deformation known as rutting and thermal cracking. This has resulted in the need to improve the properties of existing bitumen.
Ocelić Bulatović, Vesna, Jurkaš-Marković, Kristina, Rek, Vesna   +2 more
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Permanent deformation in idealized bituminous composites

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 2001
This paper describes tests undertaken to characterize the deformation behaviour of idealized bituminous mixtures and the development of a model to describe the permanent deformation exhibited by these mixtures in a wheel-tracking test. Steady state uniaxial and triaxial tests are used to characterize the deformation behaviour of the idealized mixtures
A C Collop, S Khanzada
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Permanent Deformation In Idealised “Sand Asphalt” Bituminous Mixtures

Road Materials and Pavement Design, 2001
ABSTRACT This paper investigates the quasi-static permanent deformation (rutting) behaviour of two idealised bituminous mixtures (sand asphalts). The permanent deformation behaviour is assessed using simplified quasi-static uni-axial and tri-axial laboratory tests performed over a range of temperatures, stress levels and strain rates.
Andrew C. Collop, Shahab Khanzada
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Characterization of Permanent Deformation of Different Asphalt Pavements Using the Advanced Repeated Load Permanent Deformation Test

CICTP 2016, 2016
An advanced repeated load permanent deformation (ARLPD) test that can simulate the lateral confinement and temperature gradient in actual pavements was employed in this study. The test was conducted based on field cores and laboratory-made specimens of several newly constructed hot mix asphalt (HMA) pavements, reclaimed asphalt pavements (RAP), and ...
Qiang Li, Shuai Zhang, Jun Zhao
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