Mechanical Behavior of Recycled Asphalt Material Under Dynamic Loading Conditions

Sadd, Martin H.; Shukla, Arun; Tekalur, Arjun; Dai, Qingli; University of Rhode Island. Department of Mechanical Engineering and Applied Mechanics

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Mechanical Behavior of Recycled Asphalt Material Under Dynamic Loading Conditions

2005-03-01
By Sadd, Martin H. ; Shukla, Arun ; Tekalur, Arjun ; ...

[PDF-3.63 MB]

English

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Details:

Creators:

Sadd, Martin H. ; Shukla, Arun ; Tekalur, Arjun ; Dai, Qingli

Sadd, Martin H. ; Shukla, Arun ; Tekalur, Arjun ; Dai, Qingli Less -
Corporate Creators:

University of Rhode Island. Department of Mechanical Engineering and Applied Mechanics
Corporate Contributors:

University of Rhode Island. Transportation Center ; University Transportation Centers Program (U.S.)

University of Rhode Island. Transportation Center ; University Transportation Centers Program (U.S.) Less -
Subject/TRT Terms:

[+]

Asphalt Dynamic Loads Failure Finite Element Method Highways I31: Bituminous Binders And Materials Laboratory Tests Materials Mathematical Models Micromechanical Behavior Recycled Materials Viscoelasticity
Publication/ Report Number:

URITC 02-12
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

01002817
OCLC Number:

61102880
Edition:

Final Report
Corporate Publisher:

University of Rhode Island. Transportation Center
Abstract:

This report describes activities and findings of a research project dealing with particular micromechanical behaviors of asphalt materials under time dependent loading conditions. The project involved both experimental studies and theoretical/numerical modeling. Experimental work included laboratory testing of compression, indirect tension and three-point bending fracture specimens with 30% reclaimed material (RAP). Testing included both quasi-static and dynamic loadings applied in a split Hopkinson pressure bar apparatus. Results of the experimental studies indicated significant differences in the failure mechanisms of all three types of samples. Much more aggregate failure was observed in samples subjected to dynamic loading conditions. Numerical modeling continued along methods established from our previous studies. This work employed finite element techniques to develop a microstructural model of heterogeneous asphalt materials. The model simulates the load transfer between aggregates and incorporates a damage mechanics approach to simulate the inelastic failure mechanisms in the binder material. The current numerical work has extended our modeling to rate dependent viscoelastic behavior using Schapery’s non-linear viscoelastic damage coupled methods. These methods were numerically implemented using the user material subroutines within the ABAQUS commercial FEA code. Model results for several loading histories were in qualitative agreement with expected behavior and for a uniaxial test case, model results compared favorably with some particular experimental data.
Format:

PDF
Funding:

URITC 536186
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:e38ea59864d2694682abd0e09d0f0de87f452ad356644d4d8b45188ad21390ca
Download URL:

https://rosap.ntl.bts.gov/view/dot/39078/dot_39078_DS1.pdf
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Mechanical Behavior of Recycled Asphalt Material Under Dynamic Loading Conditions

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