Continuum Damage Approach to Asphalt Concrete Fatigue Modeling

Bodin, Didier; Pijaudier‐Cabot, Gilles; Piau, Jean‐Michel; Chabot, Armelle

doi:10.1061/(asce)0733-9399(2004)130:6(700)

Cited by 67 publications

(35 citation statements)

References 17 publications

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“…The analysis of fatigue data is not simple because artefacts or secondary phenomenon can greatly influence the test results. These effects that superimpose to damage are particularly important at the beginning of fatigue tests, during phase I (Di Bodin et al, 2004a). During this initial phase, a sharp decrease of the bituminous material's stiffness is typically observed.…”

Section: Introductionmentioning

confidence: 99%

Non Linearity in Bituminous Materials during Cyclic Tests

Gauthier¹,

Bodin²,

Chailleux³

et al. 2010

Road Materials and Pavement Design

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In the recent years rheology has been taking an increasing importance in the characterization of bituminous materials. Rheological parameters are suggested by many studies as good indicators of the performance of these materials and tools to efficiently predict the performance and durability of asphalt pavements.Bituminous materials exhibit a non-linear mechanical response beyond a certain level of solicitation. This behaviour is important as it is a source of error in linear stiffness measurements. Fatigue tests on bituminous materials are typically performed in the non-linear region. In the present study, non-linearity of bituminous binders and mixtures was investigated through strain sweeps and fatigue tests. The development of non-linearity was described and quantified. It was found the strain level effect has the same impact on mechanical properties as the accumulation of cycles. A phenomenological description of this behaviour is proposed, based on the destruction of supra-molecular structures.

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Section: Introductionmentioning

confidence: 99%

Non Linearity in Bituminous Materials during Cyclic Tests

Gauthier¹,

Bodin²,

Chailleux³

et al. 2010

Road Materials and Pavement Design

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“…Recent research have also shown that it is possible to apply the Continuum Damage Theory by adapting the damage evolution law to take into account important factors such as thixotropy and the effect of internal temperature increase (Baaj et al, 2003;Bodin et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Damage Theory Applied to Flexural Fatigue Tests on Conventional and Asphalt Rubber Hot Mixes

Mello¹,

Kaloush²,

Farias³

2010

Road Materials and Pavement Design

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Application of the Continuum Damage Theory (CDT) to evaluate the evolution of internal damage in Hot Mix Asphalt (HMA) is investigated in this paper. The CDT leads to the formulation of a characteristic curve relating normalized pseudo-stiffness and the internal damage variable, and this curve is supposed to be unique for each material. The uniqueness of the characteristic curve was investigated in this paper by performing fatigue tests in which prismatic samples of HMA were subjected to cyclic bending loads under strain controlled tests. Asphalt mixtures with dense, open and gap gradation using conventional and rubber modified binders were tested. The results of all the tests showed the existence of unique curves independent of loading mode, amplitude or frequency within the studied range. This property may be implemented in numerical codes to simulate the behavior of flexible pavements under a variety of field conditions, using a well formulated mechanistic approach.

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“…It appears that a key point when analysing fatigue tests is to correctly identify the different phenomena explaining stiffness decrease. Some authors 16,[18][19][20][21][22]41 extended the analyses in considering also the phase lag of complex modulus evolution with the number of cycles. These reversible effects, sometimes of paramount importance, are not fatigue and hide real damage of the material, which then cannot be quantified.…”

Section: N O M E N C L a T U R Ementioning

confidence: 99%

“…[24][25][26][27][28][29] The classical approach consisting in analysing only modulus decrease 14,[30][31][32][33][34][35][36][37][38][39][40] during test is very limited as it considers only partial information from test results. Some authors 16,[18][19][20][21][22]41 extended the analyses in considering also the phase lag of complex modulus evolution with the number of cycles. The trajectory of complex modulus in the complex plane during fatigue test allowed, for example, identifying effect that can be explained only by temperature (or equivalent temperature) change.…”

Section: N O M E N C L a T U R Ementioning

confidence: 99%

Three‐dimensional analysis of fatigue tests on bituminous mixtures

Tapsoba

Sauzéat

Benedetto

et al. 2015

Fatigue Fract Eng Mat Struct

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A tension–compression test on cylindrical specimens was used to study the three‐dimensional behaviour of bituminous mixtures during fatigue tests. The tests were carried out at 10 °C, 10 Hz at constant strain amplitude mode. The axial strain, radial strain and axial stress were measured using a prototype apparatus developed at the University of Lyon/“Ecole Nationale des TPE” (ENTPE). In addition to axial stress and strain analysis, the measurements of the radial strain made it possible to obtain the complex Poisson ratio and the volumetric strains during the tests. The results showed good correlations between the volumetric strains and global damage. The effects of the change of temperature due to viscous dissipation on the volumetric strain and on the complex modulus were also analysed.

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Continuum Damage Approach to Asphalt Concrete Fatigue Modeling

Cited by 67 publications

References 17 publications

Non Linearity in Bituminous Materials during Cyclic Tests

Non Linearity in Bituminous Materials during Cyclic Tests

Damage Theory Applied to Flexural Fatigue Tests on Conventional and Asphalt Rubber Hot Mixes

Three‐dimensional analysis of fatigue tests on bituminous mixtures

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