Topic
Bending moment
About: Bending moment is a research topic. Over the lifetime, 14577 publications have been published within this topic receiving 158834 citations. The topic is also known as: bending moment.
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TL;DR: In this paper, the authors proposed a new numerical method for hydroelastic predictions of floating structures in inhomogeneous seabed and wave field conditions based on the three-dimensional potential theory and finite element method (FEM).
55 citations
TL;DR: Lebee and Sab as mentioned in this paper presented a new plate theory called Bending-Gradient plate theory for out-of-plane loaded thick plates where the static unknowns are those of the Kirchhoff-love theory (3 in-plane stresses and 3 bending moments), to which six components are added representing the gradient of the bending moment.
55 citations
01 May 1973
TL;DR: In this paper, the authors considered the critical loads on ships' hulls, as indicated by possible modes of structural damage and/or failure, and proposed an ultimate load criterion involving the following bending moments: quasi-static wave-induced, vertical and lateral combined, still water, including effect of ship's own wave, dynamic loads, including slamming, whipping and springing, and thermal effects.
Abstract: : Consideration is given to the critical loads on ships' hulls, as indicated by possible modes of structural damage and/or failure An ultimate load criterion is then set up involving the following bending moments: quasi- static wave-induced, vertical and lateral combined, still water, including effect of ship's own wave, dynamic loads, including slamming, whipping, and springing, and thermal effects The determination of each of these loads is discussed in detail, and the need for further clarification of dynamic loads is brought out Methods of combining these loads, all expressed in probability terms, are considered A criterion for cyclic loading is discussed, involving the prediction of the expected number of combined loads of different levels, as well as the expected shifts of mean value A criterion for brittle fracture is also discussed Attention is given to estimating an acceptable probability of failure for use in design Finally, calculations of loads are carried out for a typical cargo ship, the SS Wolverine State The loads are then combined in accordance with the proposed ultimate load criterion and compared with the standards under which the ship was designed
55 citations
TL;DR: In this paper, the results of a finite element simulation of a flexible, cantilever retaining wall with dry and saturated backfill under earthquake loading were compared with that of a centrifuge test.
Abstract: Many failures of retaining walls during earthquakes occurred near waterfront. A reasonably accurate evaluation of earthquake effects under such circumstance requires proven analytical models for dynamic earth pressure, hydrodynamic pressure, and excess pore pressure. However, such analytical procedures, especially for excess pore pressure, are not available and hence comprehensive numerical procedures are needed. This paper presents the results of a finite-element simulation of a flexible, cantilever retaining wall with dry and saturated backfill under earthquake loading, and the results are compared with that of a centrifuge test. It is found that bending moments in the wall increased significantly during earthquakes both when backfill is dry or saturated. After base shaking, the residual moment on the wall was also significantly higher than the moment under static loading. Liquefaction of backfill soil contributed to the failure of the wall, which had large outward movement and uneven subsidence in the backfill. The numerical simulation was able to model quite well the main characteristics of acceleration, bending moment, displacement, and excess pore pressure recorded in the centrifuge test in most cases with the simulation for dry backfill slightly better than that for saturated backfill.
55 citations
TL;DR: In this paper, a linear buckling analysis of square and rectangular plates with circular and rectangular holes in various positions subjected to axial compression and bending moment is developed, where the effect of bending moment on the stability of the plate is studied and some differences with respect to the uniform compression load case are shown.
Abstract: In this paper linear buckling analyses of square and rectangular plates with circular and rectangular holes in various positions subjected to axial compression and bending moment are developed. The aim is to give some practical indications on the best position of the circular hole and the best position and orientation of rectangular holes in steel plates, when axial compression and bending moment act together. Two different orientations are considered for rectangular holes: holes with major dimension parallel to the vertical plate axis (RS holes) and major dimension parallel to horizontal plate axis (RL holes). The effect of bending moment on the stability of the plate is studied and some differences with respect to the uniform compression load case are shown. Some design suggestions on the best orientation of rectangular for stability purposes are given. The influence of dimension and position of perforations on linear buckling behaviour and, in particular, on buckling coefficient of the plate is observed. Some practical design formulations for the calculation of the buckling coefficient, taking into account (a) dimensions and shape (square and rectangular) of the plate, (b) dimensions and shape (circular and rectangular) of the hole, (c) position of the hole (centre in the “maximum” and in the “nodal” point), (d) orientation (RS and RL) of the rectangular hole, and (e) load configuration (uniform compression, combinations of axial compression and bending and pure bending) are finally proposed.
55 citations