Results 261 to 270 of about 160,756 (304)

Numerical prediction of crack propagation and crack widths in concrete structures

Engineering Structures, 2009
The paper deals with the numerical prediction of crack propagation and crack widths in concrete structures. The early stages of cracking, characterized by distributed micro-cracking, are described by a smeared crack model with rotating crack directions, whereas the subsequent formation of a macro-crack is described by embedding a discontinuity in the ...
Yvonne Theiner, Günter Hofstetter
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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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Finite width effects in a cracked plate

International Journal of Fracture, 1976
The expression for the strain energy of a plate with an elliptical hole has been derived using the Inglis solution, in an attempt to trace the missing details between the Griffith Solutions of 1921 and 1924. The results obtained permit, to a first approximation, the evaluation of the finite width effect on the stress-intensity factor of a cracked plate.
S. K. Bhandari, M. Gateau, G. Sertour
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Diagonal Crack Width Control in Short Beams

ACI Journal Proceedings, 1971
A SYSTEMATIC EXPERIMENTAL INVESTIGATION COMPRISING 12 REINFORCED CONCRETE SHORT BEAMS WAS UNDERTAKEN PRIMARILY TO DETERMINE HOW SEVERE THE CRACK WIDTH PROBLEM IS IN SHORT BEANS AND HOW THIS PROBLEM CAN BE CONTROLLED WITH A MINIMUM AMOUNT OF WEB REINFORCEMENT.
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Numerical Model for Crack Width Calculation in Concrete Elements

Structural Engineering International, 2006
The paper presents engineering numerical model for crack width calculation in conventional reinforced, prestressed and composite concrete elements exposed to bending. Cross section can be of an arbitrary shape, with an arbitrary position of reinforcement and eccentric external force. It can also be made composite in several phases.
Radnić, Jure, Markota, Lada, Harapin, Alen   +2 more
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Corrosion in cracked and uncracked concrete – influence of crack width, concrete quality and crack reopening

Magazine of Concrete Research, 2010
Cracks influence the durability of reinforced concrete (RC) structures in aggressive environments by accelerating the ingress of corrosive agents to the embedded steel. This study investigated the influence of crack width (0·7 mm, 0·4 mm and incipient cracks), binder type (100% CEM I (ordinary Portland cement – OPC) and 50/50 OPC/Corex slag blend ...
M.B. Otieno, M.G. Alexander, H.-D. Beushausen   +2 more
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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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Propagation and band width of smeared cracks

2015
The crack band approach (in the smeared crack concept) is widely used for the modeling of concrete fracture and is an important analysis technique within advanced engineering. However, the simulations can be impeded by mesh-induced directional bias.
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ALTERNATIVE CRACK WIDTH COMPUTATION FOR PRESTRESSED MEMBERS.

Proceedings of the Institution of Civil Engineers - Structures and Buildings, 1993
This paper describes a new method to compute the crack width attributable to the loading of prestressed flexural members. Use is made of the similarities that exist between the deflection theory and the crack theory of prestressed sections and elements.
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DESIGN OF HYBRID-FIBER REINFORCEMENT FOR SHRINKAGE CRACKING BY CRACK WIDTH PREDICTION

2003
ABSTRACT The use of fiber reinforcement to reduce shrinkage cracking is becoming increasingly common. The effectiveness of fiber reinforcement can be enhanced using multiple types of fibers. A means of predicting the shrinkage performance of hybrid-fiber reinforcement would facilitate its design.
Michele F. CYR, Chengsheng OUYANG, Surendra P. SHAH   +2 more
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