Algorithm for determination of the damage characteristic (C-S) curve of asphalt mixtures

Autor: Francisco José Pereira de Almeida, Suyanne Costa Silva, Jorge Barbosa Soares, Evandro Parente Junior
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2020
Předmět:
Zdroj: Transportes, Vol 28, Iss 2 (2020)
Druh dokumentu: article
ISSN: 2237-1346
DOI: 10.14295/transportes.v28i2.2163
Popis: This paper presents the algorithm for calculating the damage characteristic curve obtained in direct tension tests taking into account sinusoidal controlled strain loading. The Viscoelastic Continuum Damage formulation is presented in a summarized form for the algorithm, in which the pseudo strain, at the instants associated to the observed stress, is calculated using the expression of the linear viscoelasticity stress under controlled strain testing. This facilitates subsequent treatment of the data to obtain the vs. curve. The proposed algorithm is simple to understand and easy to implement computationally. The algorithm was validated with the results of fatigue test simulations in three mixtures, which have indicated its potential.
Databáze: Directory of Open Access Journals