Intelligent monitoring of tunnel structures based on vision measurement technologies

H Yang, Q Shi, X Xu - Mechanics of Advanced Materials and …, 2022 - Taylor & Francis
The monitoring and prevention of cracks in tunnel structures is an essential problem and the
traditional methods are arduous to suffice the rapid increasing of tunnel mileage. Many …

Effect of T-stress on the initial fracture toughness of concrete under I/II mixed-mode loading

Y Zhao, W Dong, B Xu, J Liu - Theoretical and applied fracture mechanics, 2018 - Elsevier
The mixed-mode stress intensity factors (SIFs) and T-stress for different geometries of four-
point bending specimens were calculated by means of finite element analysis through a …

Comparisons of asphalt pavement responses computed using layer properties backcalculated from dynamic and static approaches

D Cao, Y Zhao, W Liu, Y Li, J Ouyang - Road Materials and …, 2019 - Taylor & Francis
The falling weight deflectometer (FWD) testing is widely used as a nondestructive technique
to backcalculate layer properties of in-situ asphalt pavement structures. Traditionally, static …

An inversion algorithm for the dynamic modulus of concrete pavement structures based on a convolutional neural network

G Chen, X Chen, L Yang, Z Han, D Bassir - Applied Sciences, 2023 - mdpi.com
Based on the spectral element method (SEM) and a convolutional neural network (CNN), an
inversion algorithm for the dynamic modulus of concrete pavement structures is proposed in …

Wave propagation approach for dynamic responses of transversely isotropic viscoelastic pavement under impact load

W Quan, X Ma, C Si, Z Dong, T Wang - Road Materials and …, 2022 - Taylor & Francis
Recently studies reveal that the viscoelasticity of the asphalt layer, the transverse isotropy of
each structure layer and the foundation condition of the pavement structure are important …

Investigation of crack propagation in asphalt pavement based on APT result and LEFM analysis

ML Nguyen, O Chupin, J Blanc… - … of Testing and …, 2020 - asmedigitalcollection.asme.org
When reinforcing existing cracked asphalt pavements, the design and evaluation of the
durability of the reinforced structure are quite different from those of a new pavement …

Characterization of a cracked specimen with full-field measurements: direct determination of the crack tip and energy release rate calculation

R Moutou Pitti, C Badulescu, M Grédiac - International Journal of Fracture, 2014 - Springer
The crack characterization in a pre-cracked aluminum specimen is investigated in this study
using the grid method. The images of this grid are analyzed to provide the crack tip location …

Viscoelastic analysis of surface responses in flexible pavements under different loading conditions

M Alae, Z Leng, Y Zhao, G Fu - Road Materials and Pavement …, 2022 - Taylor & Francis
Due to time-temperature dependent behavior of asphalt concrete (AC), viscoelastic analysis
is necessary for understanding the mechanism of top-down cracking (TDC). In this study, a …

Experimental and numerical investigation of fracture mechanics of bitumen beams

O Portillo, D Cebon - Engineering fracture mechanics, 2013 - Elsevier
This work presents an experimental and numerical investigation to characterise the fracture
properties of pure bitumen (the binder in asphalt paving materials). The paper is divided into …

Quasi-static analysis of multilayered domains with viscoelastic layer using incremental-layerwise finite element method

M Ameri, M Malakouti, P Malekzadeh - Mechanics of Time-Dependent …, 2014 - Springer
This paper presents a layerwise finite element formulation for quasi-static analysis of
laminated structures with embedded viscoelastic material whose constitutive behavior is …