Results 11 to 20 of about 36,663 (266)

Effect of Crack Closure on Permeability in Abutment Pressure Area

Meikuang Anquan, 2020
The mechanical model of crack closure was established, and the zone of crack closure was calculated combining with the abutment pressure formula.
LI Li, YU Lei, ZHANG Shuangyu, KANG Qiang
doaj   +1 more source

Monitoring breathing cracks of a beam-like bridge subjected to moving vehicle using wavelet spectrum

Vietnam Journal of Mechanics, 2013
In this paper a wavelet spectrum technique for monitoring the breathing crack phenomenon of a beam-like bridge subjected to moving vehicle is presented.
Nguyen Viet Khoa
doaj   +1 more source

InSAR analysis for detecting the route of hydrothermal fluid to the surface during the 2015 phreatic eruption of Hakone Volcano, Japan

Earth, Planets and Space, 2018
Although the 2015 Hakone Volcano eruption was a small-scale phreatic eruption with a discharged mass of only about 100 tons, interferometric synthetic aperture radar successfully detected surface deformations related to the eruption.
Ryosuke Doke, Masatake Harada, Kazutaka Mannen, Kazuhiro Itadera, Jun Takenaka   +4 more
doaj   +1 more source

Effects of breathing cracks on the dynamic characteristics of a drilling riser under irregular waves and the crack identification

AIP Advances, 2021
To investigate the effects of breathing cracks on the dynamic characteristics, i.e., natural frequencies, vibration displacement, slope angle, and bending moment, of a drilling riser, a time-domain finite element method based on the fracture mechanics ...
Xingkun Zhou, Yuqing Sun, Wenhua Li
doaj   +1 more source

Proppant-Induced Opening of Hydraulically Created Fractures

Open Geomechanics, 2021
The paper examines the problem of the open configuration created when a hydraulic fracture fluid containing a granular proppant is introduced into the fracture. The mathematical modelling examines the problem of a Griffith crack that is wedged open by a
Antony Patrick Selvadurai
doaj   +1 more source

Dynamic analysis of cracked rotating blade using cracked beam element

Results in Physics, 2020
In this paper, the dynamic model of a pre-twisted cracked rotating blade is established using self-programed beam element (CBE) and its nonlinear characteristics are analyzed.
Chenguang Zhao, Jin Zeng, Hui Ma, Kaixuan Ni, Bangchun Wen   +4 more
doaj   +1 more source

Damage Detection of Axially Loaded Beam: A Frequency-Based Method [PDF]

Civil Engineering Infrastructures Journal, 2016
The present study utilizes an analytical method to formulate the three lowest modal frequencies of axially-loaded notched beam through both crack location and load level in a specific format that can be used in existing frequency-based crack ...
Omid Rezaifar, Mohammad Reza Doostmohammadi   +1 more
doaj   +1 more source

Numerical analysis of the influence of liquid on propagation of a rolling contact fatigue crack [PDF]

Fracture and Structural Integrity, 2017
Numerical investigations of the propagation of rolling contact fatigue crack filled by the liquid have been conducted. Two models of fluid crack interaction have been considered.
M. Olzak, J. Piechna Warsaw, P. Pyrzanowski   +2 more
doaj   +5 more sources

Modified and Simplified Sectional Flexibility of a Cracked Beam

Journal of Applied Mathematics, 2012
This paper presents a new sectional flexibility factor to simulate the reduction of the stiffness of a single-edge open cracked beam. The structural model for crack of the beam is considered as a rotational spring which is related to the ratio of crack ...
Chih-Shiung Wang, Lin-Tsang Lee
doaj   +1 more source

Crack Opening Investigation In Fiberconcrete

, 2014
{"references": ["Cabrera G.J. (1996) Deterioration of Concrete due to Reinforcement\nSteel Corrosion. Cement and Concrete Composites, Vol.18, pp.47-59.", "Kooiman A. (2000) Modeling Steel Fiber Reinforced Concrete for\nStructural Design. Ph.D. thesis.
Macanovskis, Arturs, Lusis, Vitalijs, Krasnikovs, Andrejs   +2 more
openaire   +1 more source