Results 251 to 260 of about 71,955 (280)

Determination of crack spacing and crack width in reinforced concrete beams

Structural Engineering and Mechanics, 2003
In this paper spacing and width of flexural cracks in reinforced concrete beams are determined using two-dimensional finite element analysis. At early loading stages on the beam the primary crack spacing is based on the slip length, which is the development length required to resist the steel stress increment that occurs at a cracked section on the ...
Piyasena, R, Loo, YC, Fragomeni, S
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Evaluation of tension-stiffening, crack spacing and crack width of geopolymer concretes

Construction and Building Materials, 2018
Abstract This paper presents the results of an experimental study on the behavior of twenty geopolymer concrete prisms tested under uniaxial tension to investigate the tension-stiffening effect on the deformation and crack width of geopolymer concretes, prepared using either fly ash-based geopolymer concrete or granulated lead smelter slag (GLSS ...
Albitar, M., Mohamed Ali, M., Visintin, P.   +2 more
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On Cracking That Nut, Absolute Space

Philosophy of Science, 1977
In his recent "The Identity of Indiscernibles," Ian Hacking writes approvingly of Leibniz's use of the Identity of Indiscernibles (I/I) "as a nutcracker to crush absolute space" ([3], p. 251). Hacking's point, often made in the literature, is that the familiar spatiotemporal examples, such as a universe consisting of only two otherwise identical ...
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Matrix crack spacing in brittle matrix composites

Acta Metallurgica et Materialia, 1992
A model describing the evolution of matrix cracks in undirectional continuous fiber, brittle matrix composites is developed. The approach involves calculation off the steady state strain energy release rate available for crack extension in terms of the constituent properties, the applied stress and the distances to the neighboring cracks.
Zok, F.W., Spearing, S.M.
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Crack Control through Bar Spacing Requirements

Structures Congress 2005, 2005
In the ACI 318-99 building code, new design provisions were introduced for the control of cracking through reinforcing bar spacing requirements. With the introduction of the ACI 318-05 code, the direction of controlling cracking through reinforcement spacing with be further extended. The new provisions provide for the control of flexural cracking along
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Space resolution improvement in pulse crack location

The Journal of the Acoustical Society of America, 2001
The new method of space resolution increasing in pulse location method was suggested by Professor Zverev is applied for space resolution improvement of ultrasonic pulse location technique. According to this method, the spectrum of the received signal is divided to the spectrum of the reference radiated signal and the complex inverse Fourier ...
Vyacheslav V. Kazakov, Vitaly A. Zverev, Alexander M. Sutin   +2 more
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Crack Width and Crack Spacing In Reinforced Concrete Members

ACI Journal Proceedings, 1965
A SIMPLE METHOD IS DEVELOPED FOR CALUCLATION OF CRACK WIDTH AND CRACK SPACING IN REINFORCED CONCRETE MEMBERS. THE CRACK WIDTHS DETERMINED BY THIS METHOD WERE COMPARED WITH TEST DATA OBTAINED FROM FLEXURAL AND TENSILE MEMBERS REINFORCED WITH ONE BAR. THE SHAPE OF THE MAIN CRACKS WAS INVESTIGATED BY MEANS OF SHORT TENSION MEMBERS OF A LENGTH EQUAL TO THE
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Annular crack in an elastic half-space

International Journal of Engineering Science, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
B. Kebli, Z. Baka
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Surface-breaking crack in an elastic half-space

Journal of Engineering Mathematics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Movchan, N. V., Willis, J. R.
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Depth and spacing of tension cracks

Journal of Geophysical Research, 1961
Contraction cracks in basalt, permafrost, and mud, and crevasses in glaciers are examples of geological phenomena that might be studied by reference to a theoretical model of tension cracks in a semi-infinite solid. The effect of the crack in relieving stress at the ground surface bears on the problem of crack spacing, and the rate of energy ...
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