Results 11 to 20 of about 71,955 (280)

Fracture mechanics analysis of rock containing collinear cracks under dynamic blasting loads

open access: yesAIP Advances, 2021
Based on the superposition principle of fracture dynamics, the disturbance caused by dynamic blasting loads on the expansion of primary cracks in a typical slope was examined in this study.
Lingfei Zhang   +4 more
doaj   +1 more source

Effect of Crack Defects on Magnetostriction and Magnetic Moment Evolution of Iron Thin Films

open access: yesNanomaterials, 2022
Molecular dynamics simulations of body-centered cubic (bcc) iron thin films with crack defects were carried out by adopting methods of EAM (Embedded Atom Method) potential, spin/exchange potential and spin/neel potential.
Hongwei Yang, Meng Zhang, Lianchun Long
doaj   +1 more source

Study Effect the Shear Spacing and Width of Beam on Behavour of Reinforced Concrete Wide Beams

open access: yesDiyala Journal of Engineering Sciences, 2021
This paper presented an experimental study of the behaviour of wide reinforced concrete beams with different shear spacing and beam width. Eight specimens in two groups, the group one contains four specimens with the dimensions of (200x500x1600mm) and ...
Mustafa Joad, Ali L. Abass
doaj   +1 more source

Comparative study of Steel-FRP, FRP and steel reinforced coral concrete beams in their flexural performance [PDF]

open access: yes, 2020
In this paper, a comparative study of Carbon Fiber Reinforced Polymer (CFRP) Bar and Steel-Carbon Fiber Composite Bar (SCFCB) reinforced coral concrete beams are made through a series experimental tests and theoretical analysis.
Fu, F., Huang, C., Wang, L., Zhang, J.
core   +1 more source

Cracking Behavior of UHPC Slabs [PDF]

open access: yesEngineering and Technology Journal, 2015
The combination of fibers with traditional reinforcement may be a very interesting design solution to achieve more durable and economical structures. In this study, a total of seven slabs; six ultra high performance concrete (UHPC) slabs and one normal ...
Hussein Al-Quraishi
doaj   +1 more source

Fatigue Behaviour of CFRP Bar-Reinforced Seawater Sea Sand Concrete Beams: Deformation Analysis and Prediction

open access: yesBuildings, 2023
The new composite application of seawater sea sand concrete (SSC) and fibre-reinforced polymer (FRP) bars had broad development prospects. In this paper, the load levels and stirrup spacing were the main research parameters.
Jinshang Deng   +11 more
doaj   +1 more source

Study on parameters of blast hole spacing for gob side entry retaining by bidirectional shaped charge blasting

open access: yesMeikuang Anquan, 2022
In order to solve the problem of selecting reasonable blast hole spacing in gob-side entry retaining, based on the fracture forming mechanism of bi-directional shaped charge blasting, a mechanical model of combined hole shaped charge blasting is ...
SHI Qipeng, ZHENG Hongyun, WANG Yongbao, YUN Ming, WU Shanyuan, LI Tingchun, ZHANG Hao
doaj   +1 more source

Trapped modes due to narrow cracks in thin simply-supported elastic plates [PDF]

open access: yes, 2014
We consider an elastic plate of infinite length and constant width supportedsimply along its two parallel edges and having a finite length crack along itscentreline.
Evans, David V, Porter, Richard
core   +2 more sources

Theory of Crack Spacing in Concrete Pavements [PDF]

open access: yesJournal of Engineering Mechanics, 1997
A simple analytical model is developed to predict the average crack spacing and crack depth in highway pavements due to thermal loading. The pavement is modeled as a beam on a Winkler elastic foundation. The effect of cracks on the pavement is considered on the basis of compliance functions. A simple method is introduced to describe the behavior of the
Ann Ping Hong   +2 more
openaire   +1 more source

An Analysis of Mode III Doubly Periodic Crack-Tip Field of Orthotropic Composite Materials

open access: yesJournal of Applied Mathematics, 2013
The mechanical behavior near the doubly periodic crack tips for orthotropic composite materials plate subjected to antiplane shear loading is studied. This is done by complex function theory and conformal mapping of the Jacobi elliptic function with the ...
Wenbin Zhao   +4 more
doaj   +1 more source

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