Dynamic stability; Euler’s beam; Vlasov’s foundation; moving inertial load;
PBN-AR
Instytucja
Wydział Inżynierii Lądowej (Politechnika Warszawska)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Procedia Engineering
ISSN
1877-7058
EISSN
Wydawca
Elsevier BV
DOI
Rok publikacji
2014
Numer zeszytu
Strony od-do
81-86
Numer tomu
91
Identyfikator DOI
Liczba arkuszy
0.5
Autorzy
(liczba autorów: 2)
Pozostali autorzy
+ 1
Słowa kluczowe
en
constitutive modeling; thermo-mechanics, finite element method; RST; asphalt concretes; cohesive zone model; cracking
Streszczenia
Język
en
Treść
The top-down cracking of asphalt concrete pavements caused by thermal factors are very common in Poland. Cracking can occur as a result of a single intensive event (severe temperature drop) or as a result of cyclic long-term less severe events (thermal fatigue). In both cases precise constitutive modeling of materials is a key issue for rational prediction of the pavement behavior. As a starting point the Thermal Stress Restrained Specimen Test (TSRST) in which the shrinkage proceeds due to temperature reduction is analyzed and compared with experiment results for chosen mix. The TSRST is modeled using the finite element method in a frame of thermo-mechanics with the so-called weak coupling between thermal and mechanical effects. Mechanical properties are taken into account by the constitutive relations of elasticity, visco-elasticity and continuum cracking models. Among the continuum cracking models special place is devoted to cohesive zone model which is a new development in fracture mechanics. Cohesive zone model in many works is presented as the only solution for rational modeling of TSRST and this notion is also addressed herein
Inne
System-identifier
WUTe4ef80306b7b43998a161c8c42ac301c
CrossrefMetadata from Crossref logo
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