Topic
Deflection (engineering)
About: Deflection (engineering) is a research topic. Over the lifetime, 30862 publications have been published within this topic receiving 298849 citations.
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TL;DR: In this paper, the authors present a method for the viscoelastic analysis of composite steel-concrete beams with flexible shear connectors, which evaluates the effects of the connection device's deformability on the migration of the stresses from the concrete slab to the steel beam, which occurs with time as a result of creep and shrinkage of the concrete part.
Abstract: This paper presents a method for the viscoelastic analysis of composite steel‐concrete beams with flexible shear connectors. In particular, the proposed method evaluates the effects of the connection device's deformability on the migration of the stresses from the concrete slab to the steel beam, which occurs with time as a result of creep and shrinkage of the concrete part. The mathematical formulation of this problem involves the equations of equilibrium, compatibility, and constitutive relationships, i.e., an elastic law for the steel part and an integral‐type creep law for the concrete part. Thus, the problem is governed by a coupled system of three equations, of which two are integral‐differential‐type equations. This system of equations is resolved by numerical step‐by‐step techniques. Finally, a numerical analysis is applied to show the influence of the main parameters.
65 citations
TL;DR: In this article, an analytical solution for calculating the load-deflection response of simple beams at any load stage is presented, defined by section flexural crack initiation, and ultimate capacity The curvature distribution, along the span, is determined for uncracked and cracked regions based on the moment variation Closed form equations are developed for the case of four point bending, three point bending and uniform loading
65 citations
TL;DR: In this paper, several iterative methods for solving some boundary value problems occurring in plate deflection theory are presented. But these methods do not deal with the problem of finding the optimal solution.
65 citations
TL;DR: In this article, a new plate triangle based on Reissner-Mindlin plate theory is proposed, which has a standard linear deflection field and an incompatible linear rotation field expressed in terms of the mid-side rotations.
Abstract: A new plate triangle based on Reissner–Mindlin plate theory is proposed. The element has a standard linear deflection field and an incompatible linear rotation field expressed in terms of the mid-side rotations. Locking is avoided by introducing an assumed linear shear strain field based on the tangential shear strains at the mid-sides. The element is free of spurious modes, satisfies the patch test and behaves correctly for thick and thin plate and shell situations. The element degenerates in an explicit manner to a simple discrete Kirchhoff form.
65 citations
TL;DR: In this paper, the effect of temperature on the bending properties and failure mechanism of a three-dimensional E-glass/epoxy four-directionally braided composite was analyzed.
65 citations