Results 21 to 30 of about 46,341 (265)

Development of Sidewalk Block Pavement Condition Index (SBPCI) using Analytical Hierarchy Process [PDF]

, 2019
This study aimed at developing SBPCI (Sidewalk Block Pavement Condition Index) with sidewalk pavement condition survey data of Seoul city in order to attain a quantitative evaluation method of sidewalk pavement condition.
서영찬
core   +1 more source

Damage Identification of Turnout Rail through a Covariance-Based Condition Index and Quantitative Pattern Analysis

Infrastructures, 2023
Subjected to complex loadings from the wheel–rail interaction, turnout rail is prone to crack damage. This paper aims to develop a condition evaluation method for crack-alike damage detection of in-service turnout rail.
Jun-Fang Wang, Jian-Fu Lin, Yan-Long Xie
doaj   +1 more source

Crack influence and fatigue life assessment in rail profiles: a numerical study

Frontiers in Built Environment, 2023
Rail transportation is a pivotal mode of land transport for its efficiency in transporting passengers and freight across short or long distances; hence, the reliability and safety of rail systems are of key importance.
Patrick Urassa, Patrick Urassa, Haileleoul Sahle Habte, Awel Mohammedseid   +3 more
doaj   +1 more source

Analysis of Vibroacoustic Modulations for Crack Detection: A Time-Frequency Approach Based on Zhao-Atlas-Marks Distribution

Shock and Vibration, 2014
The vibro-acoustic modulation (VAM) technique is probably the most widely used nonlinear method for crack detection. The VAM method is based on the effect of modulation of high-frequency acoustic waves by a low-frequency vibration.
A. Trochidis, L. Hadjileontiadis, K. Zacharias   +2 more
doaj   +1 more source

Residual compression mechanical properties after low-speed impact for laminated stitched carbon fiber reinforced aluminum matrix composite

Journal of Aeronautical Materials, 2022
Using aluminum alloy ZL301 as matrix and carbon fiber laminated suture fabric as reinforcement, carbon fiber reinforced aluminum matrix (Cf/Al) composites with laminated stitch were prepared by vacuum pressure infiltration process.
GU Shu, CAI Changchun, YU Huan, XU Zhifeng, WANG Zhenjun   +4 more
doaj   +1 more source

Damage detection in beams from modal and wavelet analysis using a stationary roving mass and noise estimation [PDF]

, 2018
This paper uses the Continuous Wavelet Transform Analysis on mode shapes for damage identification. The wavelet analysis is applied to the difference in the mode shapes between a healthy and a damaged state.
Andreaus, Bendat, Cao, Fan, García, Gentile, Jiang, Katunin, Katunin, Katunin, Katunin, Limongelli, Mallat, Montanari, Ovanesova, Panopoulou, Rajendran, Ren, Rucka, Rucka, Shao, Solís, Solís, Strang, Taha, Ulriksen, Unger, Xu, Xu, Yang, Yi, Zhong, Zhong, Zhong   +33 more
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Improvement of the Ship Emergency Response Procedure in Case of Collision Accident Considering Crack Propagation during Salvage Period

Journal of Marine Science and Engineering, 2021
Specialized procedures to help in the emergency response situations following ship accidents have been under development by the Classification Societies.
Ivana Gledić, Antonio Mikulić, Joško Parunov   +2 more
doaj   +1 more source

Using Hybrid Filter-Wrapper Feature Selection With Multi-Objective Improved-Salp Optimization for Crack Severity Recognition

IEEE Access, 2020
The emerging technology of Structural Health Monitoring (SHM) paved the way for spotting and continuous tracking of structural damage. One of the major defects in historical structures is cracking, which represents an indicator of potential structural ...
Esraa Elhariri, Nashwa El-Bendary, Shereen A. Taie   +2 more
doaj   +1 more source

A specified procedure for distress identification and assessment for urban road surfaces based on PCI [PDF]

, 2017
In this paper, a simplified procedure for the assessment of pavement structural integrity and the level of service for urban road surfaces is presented.
Loprencipe, Giuseppe, PANTUSO ROMERO, Antonio   +1 more
core   +2 more sources

Mode I stress intensity factor with various crack types

Fracture and Structural Integrity, 2021
Presence of cracks in mechanical components needs much attention, where the stress field is affected by cracks and the propagation of cracks may be occurred causing the damage.
Ehab Samir Mohamed Mohamed Soliman
doaj