Results 21 to 30 of about 7,126 (264)

Numerical Investigation on Crack Formation and Penetration Mechanism between Adjacent Blastholes

open access: yesShock and Vibration, 2020
A deep understanding of the crack formation mechanism between blastholes had great significance for improving the energy utilization rate of explosives. From the perspective of static mechanics of stress wave theory, this paper theoretically derived the ...
Yi Li   +4 more
doaj   +1 more source

Discussion on Road Reflection Crack and Control

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract This paper focused on the problems encountered in the road construction of a coal-fired power plant in the Philippines as an example. Some cracks and damage appeared in the roadbed after the road concrete base layer has been built.
Huifang Zhao, Hongbo Li
openaire   +1 more source

Analysis of the Fatigue Crack Propagation Process of the Stress-Absorption Layer of Composite Pavement Based on Reliability

open access: yesApplied Sciences, 2018
The stress-absorption layer in cement concrete pavement delays the development of reflection cracks and is good at fatigue resistance. Laboratory investigations of the anti-crack performance of the high viscous asphalt sand stress-absorption layer ...
Yazhen Sun   +5 more
doaj   +1 more source

Research on the Propagation Law of Temperature-Induced Reflective Cracks in Semi-Rigid Base Asphalt Pavement

open access: yesBuildings
In order to solve the problem of reflection cracks in semi-rigid base asphalt pavement, a study of temperature-type reflection crack expansion is carried out according to the typical climatic characteristics of Guilin, Guangxi Province.
Feng Chen, Aijun Yue
doaj   +1 more source

Reflective cracking behavior for traffic and temperature effects [PDF]

open access: yes, 2008
This paper presents a study on the influence of the effects of temperature variations, in comparison with traffic effects, on the reflective cracking overlay behavior. It is intended to contribute to the improvement of the pavement overlay design methods which consider reflective cracking as one among distress criteria.
Minhoto, Manuel   +2 more
openaire   +3 more sources

High-Density Distributed Crack Tip Sensing System Using Dense Ultra-Short FBG Sensors

open access: yesSensors, 2019
Crack generation starts at the crack tip, which bears the highest stress concentration. Under further stress, the crack propagates and leads to severe structural damage.
Xin Gui   +6 more
doaj   +1 more source

Study on Composition Design and Performance Characteristics of Warm-Mixed Rubber–Asphalt Mixture for Cold-Region Stress Absorption Layers

open access: yesBuildings
Reflection cracks significantly compromise the service life of half-rigid asphalt pavements in cold regions. This study introduces SAKIII warm-mixed rubber–asphalt mixture (SAKIII WMRA Mix) as a stress absorption layer to address this issue.
Rui Pan, Jifeng Chang, Yu Chen
doaj   +1 more source

An Approach to Size Sub-Wavelength Surface Crack Measurements Using Rayleigh Waves Based on Laser Ultrasounds

open access: yesSensors, 2020
In this paper, the interaction of a broadband Rayleigh wave generated by a laser and an artificial rectangular notch is analyzed theoretically and experimentally.
Haiyang Li   +3 more
doaj   +1 more source

Review of reflective cracking in composite pavements

open access: yesInternational Journal of Pavement Research and Technology, 2020
Reflective cracking is identified as the main weakness of composite pavement in airfield and highways forcing the authorities to devote a large portion of their budget to rehabilitation and/or reconstruction of the existing composite pavements. It is, therefore, very important to have a better understanding of the reflective cracking mechanism to ...
Sahar Deilami, G. White
openaire   +1 more source

The Analysis of FBG Central Wavelength Variation with Crack Propagation Based on a Self-Adaptive Multi-Peak Detection Algorithm

open access: yesSensors, 2019
We propose a peak seeking algorithm to extract the damage characteristic-variation of central wavelength to monitor the crack damage status in aluminum alloy plates using surface bonded fiber Bragg grating (FBG) sensors.
Weifang Zhang   +5 more
doaj   +1 more source

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