Results 41 to 50 of about 787,422 (193)

Buoyancy-driven crack propagation from an over-pressured source [PDF]

, 2005
The propagation of a liquid-filled crack from an over-pressured source into a semi-infinite uniform elastic solid is studied. The fluid is lighter than the solid and propagates due to its buoyancy and to the source over-pressure.
Roper, S.M., Lister, J. R., Lister, J.R., Roper, S. M.   +3 more
core   +1 more source

Chloride Diffusivity and Life Prediction of Cracked RC Beams Exposed to Different Wet-Dry Ratios and Exposure Duration

Advances in Materials Science and Engineering, 2017
Effects of crack width, wet-dry ratio, and exposure duration of wet-dry cycles on chloride ingress of RC beams were experimentally studied. Crack widths of 40, 70, 90, and 120 microns were, respectively, induced by three-point flexural loading and four ...
Jieqiong Wu, Bo Diao, Yinghua Ye, Xiaoning Zheng   +3 more
doaj   +1 more source

Experimental Study on Crack Width of HRB600 Grade High-Strength Steel Bar Reinforced Concrete Beams

Buildings, 2023
High-strength reinforcement is an important direction in the development of civil engineering. In order to fill the gap that the current concrete structure code GB50010 has no standard regulations applicable to HRB600-grade high-strength reinforcement ...
Xiaoyi Hu, Liang Zeng, Hao Wu, Abderrahim Djerrad, Chenhan Yang, Dekai Zhang   +5 more
doaj   +1 more source

Mechanical Performance and Chloride Diffusivity of Cracked RC Specimens Exposed to Freeze-Thaw Cycles and Intermittent Immersion in Seawater

Advances in Materials Science and Engineering, 2016
The effects of crack width on chloride ingress and mechanical behavior of reinforced concrete (RC) specimens were experimentally studied after exposure to 300 cycles of freeze-thaw and seawater immersion (75 times).
Bei Shen, Yinghua Ye, Bo Diao, Xiaoning Zheng   +3 more
doaj   +1 more source

Numerical Simulation of the Influence of Width of a Prefabricated Crack on the Dimensionless Stress Intensity Factor of Notched Semi-Circular Bend Specimens

Shock and Vibration, 2019
To analyze the effect of the width of a prefabricated crack on the dimensionless stress intensity factor of notched semi-circular bend (NSCB) specimens, ABAQUS software was employed to perform numerical calibration of the crack tip stress intensity ...
Sheng Zhang, Longfei Wang, Mingzhong Gao
doaj   +1 more source

Machine learning-based prediction of crack width and bond-dependent coefficient (kb) in GFRP-reinforced concrete beams

Case Studies in Construction Materials
Glass fiber-reinforced polymer (GFRP)-reinforced concrete (RC) flexural elements are typically designed to fulfill the serviceability criteria, including deflection and crack width.
Omid Habibi, Omar Gouda, Khaled Galal
doaj   +1 more source

Study on seepage safety early warning of clay impervious earth-rockfill dams during drought-to-flood transitions

Shuili Shuiyun Gongcheng Xuebao
With comprehensive seepage monitoring data, traditional methods can effectively provide early warnings for seepage safety. However, after drought conditions, these methods show a delay in accurately reflecting the dam’s seepage status through monitoring ...
YE Wei, LI Weiwei, LUO Xiang, MA Fuheng, XU Zhangyao   +4 more
doaj   +1 more source

Effects of pre-cracked width and seawater erosion on the cracking behavior of SFRC beams with BFRP bars subjected to cyclic loading

Developments in the Built Environment
This study aims to explore the effects of various pre-cracked widths, seawater erosion and BFRP reinforcement ratios on the cracking behavior of steel fiber reinforced concrete (SFRC) beams with Basalt Fiber Reinforced Polymer (BFRP) bars subjected to ...
Haitang Zhu, Wencheng Duan, Zongze Li, Zemin Li, Xiangming Zhou, Qingxin Meng   +5 more
doaj   +1 more source

Simulation of Chloride Diffusion in Cracked Concrete with Different Crack Patterns

Advances in Materials Science and Engineering, 2016
Chloride-induced corrosion of steel rebar is one of the primary durability problems for reinforced concrete structures in marine environment. Furthermore, if the surfaces of concrete structures have cracks, additional chloride can penetrate into concrete
Xiao-Yong Wang, Li-Na Zhang
doaj   +1 more source

Novel visual crack width measurement based on backbone double-scale features for improved detection automation [PDF]

, 2023
State-of-the-art machine-vision systems have limitations associated with crack width measurements. The sample points used to describe the crack width are often subjectively defined by experimenters, which obscures the crack width ground truth ...
Zhou, Hao, Zhang, Hexin, Huang, Zhaofeng, Chen, Mingyou, Tang, Yunchao, Chen, Zhang, Sun, Junbo   +6 more
core   +1 more source