Results 261 to 270 of about 861,022 (290)

Epoxy-Coated Reinforcement Under Repeated Loading

ACI Structural Journal, 1993
Twenty three beams with splices placed in a constant moment region were subjected to repeated loading and then tested to failure to compare the service and ultimate load behavior of beams with coated and uncoated reinforcement. The repeated loading consisted of one million or 5 million cycles in the service load range. Splittng cracks formed at a lower
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Mechanics of bond under repeated loading

Construction and Building Materials, 2011
Abstract In the last two decades, an increase in the live loads applied to structures, such as bridges, coupled with a decrease in dead load due to the use of lighter high-strength materials have made the effect of repeated loading on these structures more pronounced.
Ahmad Rteil, Khaled Soudki, Timothy Topper   +2 more
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Fracture in reinforced concrete beams under repeated loads

Engineering Fracture Mechanics, 1990
Abstract In this work the behaviour of reinforced concrete beams in bending under repeated and reversed loading is studied. At first, a numerical investigation is carried out using a mechanical model based on the assumption of suitable constitutive laws for concrete and steel in the regime of reversed loads whilst also taking into account the ...
BRUNO, Domenico, OLIVITO, Renato Sante, SPADEA G.   +2 more
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P‐Delta Effect Under Repeated Loading

Journal of Structural Engineering, 1990
Recently, a novel P-Delta method for the design of sway frames was introduced by the writer and demonstrated in conjunction with static proportional loading conditions. The method incorporates the rigid-plastic collapse load and the elastic buckling load of the structure as the two boundary conditions and does not require iterations or a precise trace ...
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Cementum Crack Formation by Repeated Loading In Vitro

Journal of Periodontology, 2007
Background: In this study, the hypothesis was adopted that fatigue destruction may develop on the cementum of the root surface because of the repeated occlusal stresses loaded on the tooth as in the case of prolonged occlusal trauma. The purpose of this study is to clarify whether cemental fatigue destruction occurs when repeated stresses are loaded on
Noriyoshi, Noma, Hiroshi, Kakigawa, Yoshio, Kozono, Makoto, Yokota   +3 more
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Collapse of Arches Under Repeated Loading

Journal of the Structural Division, 1964
Within the framework of the simple plastic theory, a procedure is developed for the analysis of structures subjected to repeated loading and, therefore, liable to incremental collapse or alternating plasticity, or both, when two stress components must be considered.
Vicenzo Franciosi, Giuliano Augusti, Renato Sparacio   +2 more
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Dynamic Shakedown of Structures under Repeated Seismic Loads

Journal of Engineering Mechanics, 1995
Elastic, perfectly plastic structures are considered under the action of repeated short-duration exitations of seismic type acting in an unknown time sequence, but belonging to a given polyhedral excitation domain. The basic excitations (vertices of the polyhedron) are chosen as discrete-spectrum waves each with frequencies coincident with the first ...
Borino G., Polizzotto C.
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Repeated and Dynamic loading

1991
The response of deep foundations to repeated dynamic loading has been a subject of considerable interest in recent years in relation to the seismic design of important structures such as nucIear power plants, offshore structures and vibrating machines, etc, In spite of significant efforts on the part of theoretical and experimental researchers and the ...
FIORAVANTE, Vincenzo, MUZZI F.
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Repeated Loading, Residual Stresses, Shakedown, and Tribology

Journal of Materials Research, 1999
Protective residual stresses may be developed in the near surface layers of tribological contacts which enable loads sufficiently large to cause initial plastic deformation to be accommodated purely elastically in the longer term. This is the process of shakedown and, although the underlying principles can be demonstrated by reference to relatively ...
J. A. Williams, I. N. Dyson, A. Kapoor
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[Human tolerance to repeated +Gz loads].

Kosmicheskaia biologiia i aviakosmicheskaia meditsina, 1978
Centrifugation experiments were carried out to study human tolerance to repeated acceleration +Gz of 7.5 and 8.5 G as maximal and 1.2 and 3.0 G as minimal values. The exposures were no longer than II min with the onset rate of 0.3 to 0.8 G/sec. Repeated exposures to acceleration changed their tolerance by test subjects.
A R, Kotovskaia, R A, Vartbaronov, M N, Khomenko   +2 more
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