Energy-Based Damage and Fracture Framework for Viscoelastic Asphalt Concrete
2015 (English)In: Engineering Fracture Mechanics, ISSN 0013-7944, E-ISSN 1873-7315, Vol. 145, 67-85 p.Article in journal (Refereed) Published
A framework based on the continuum damage mechanics and thermodynamics of irreversible processes using internal state variables is used to characterize the distributed damage in viscoelastic asphalt materials in the form of micro-crack initiation and accumulation. At low temperatures and high deformation rates, micro-cracking is considered as the source of nonlinearity and thus the cause of deviation from linear viscoelastic response. Using a non-associated damage evolution law, the proposed model shows the ability to describe the temperature-dependent processes of micro-crack initiation, evolution and macro-crack formation with good comparison to the material response in the Superpave indirect tensile (IDT) strength test.
Place, publisher, year, edition, pages
2015. Vol. 145, 67-85 p.
IdentifiersURN: urn:nbn:se:kth:diva-164894DOI: 10.1016/j.engfracmech.2015.07.003ISI: 000362612900005ScopusID: 2-s2.0-84937231899OAI: oai:DiVA.org:kth-164894DiVA: diva2:806432
Updated from submitted to published.
QC 201511042015-04-202015-04-202015-11-04Bibliographically approved