Apps for modal analysis to characterize the complex modulus of asphalt concrete
(2018) 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017 p.209-215- Abstract
The time and temperature dependent dynamic modulus of asphalt concrete is a key parameter to modern pavement design and to pavement quality. However, accurate measurements of the complex modulus through conventional cyclic testing are expensive regarding both time and costs. Novel test methods based on modal analysis facilitate economic, accurate and faster determination of linear viscoelastic material properties of asphalt concrete. The modal analysis is performed by using an impact hammer and an accelerometer to measure frequency response functions of asphalt concrete specimens with free boundary conditions. The complex modulus and complex Poisson’s ratio are determined by matching finite element computed frequency response functions... (More)
The time and temperature dependent dynamic modulus of asphalt concrete is a key parameter to modern pavement design and to pavement quality. However, accurate measurements of the complex modulus through conventional cyclic testing are expensive regarding both time and costs. Novel test methods based on modal analysis facilitate economic, accurate and faster determination of linear viscoelastic material properties of asphalt concrete. The modal analysis is performed by using an impact hammer and an accelerometer to measure frequency response functions of asphalt concrete specimens with free boundary conditions. The complex modulus and complex Poisson’s ratio are determined by matching finite element computed frequency response functions to the measurements. This paper presents one software application to perform the modal testing and one application to compute and optimize frequency response functions to determine the complex modulus and complex Poisson’s ratio. The software applications greatly simplifies the methodology to determine material properties through modal analysis of asphalt concrete specimens.
(Less)
- author
- Gudmarsson, A. and Ryden, N. LU
- organization
- publishing date
- 2018
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017
- editor
- Al-Qadi, Imad L. ; Scarpas, A. Tom and Loizos, Andreas
- pages
- 7 pages
- publisher
- CRC Press/Balkema
- conference name
- 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017
- conference location
- Athens, Greece
- conference dates
- 2017-06-28 - 2017-06-30
- external identifiers
-
- scopus:85058504029
- ISBN
- 9781138295957
- DOI
- 10.1201/9781315100333-31
- language
- English
- LU publication?
- yes
- id
- 64841e2a-7c4f-4653-ae5f-eeb93f581296
- date added to LUP
- 2019-01-09 12:09:21
- date last changed
- 2022-02-15 07:41:37
@inproceedings{64841e2a-7c4f-4653-ae5f-eeb93f581296,
abstract = {{<p>The time and temperature dependent dynamic modulus of asphalt concrete is a key parameter to modern pavement design and to pavement quality. However, accurate measurements of the complex modulus through conventional cyclic testing are expensive regarding both time and costs. Novel test methods based on modal analysis facilitate economic, accurate and faster determination of linear viscoelastic material properties of asphalt concrete. The modal analysis is performed by using an impact hammer and an accelerometer to measure frequency response functions of asphalt concrete specimens with free boundary conditions. The complex modulus and complex Poisson’s ratio are determined by matching finite element computed frequency response functions to the measurements. This paper presents one software application to perform the modal testing and one application to compute and optimize frequency response functions to determine the complex modulus and complex Poisson’s ratio. The software applications greatly simplifies the methodology to determine material properties through modal analysis of asphalt concrete specimens.</p>}},
author = {{Gudmarsson, A. and Ryden, N.}},
booktitle = {{Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017}},
editor = {{Al-Qadi, Imad L. and Scarpas, A. Tom and Loizos, Andreas}},
isbn = {{9781138295957}},
language = {{eng}},
pages = {{209--215}},
publisher = {{CRC Press/Balkema}},
title = {{Apps for modal analysis to characterize the complex modulus of asphalt concrete}},
url = {{http://dx.doi.org/10.1201/9781315100333-31}},
doi = {{10.1201/9781315100333-31}},
year = {{2018}},
}