1. Damage index analysis of prefabricated segmental bridge columns under cyclic loading

Abstract The damage index is usually applied to evaluate the damage states of bridge structures, which is the basis of structural fragility study. The present study investigates the seismic damage index of the prefabricated segmental bridge columns (PSBC) under cyclic loading by theoretical and numerical analysis. Based on the previous pseudo-static experime

Lat. Am. j. solids struct.. Publicado em: 03/12/2018

2. Experimental and numerical study of I-shape slit dampers in connections

Abstract This paper proposes a new beam to column connection which has slit dampers to increase ductility and moment capacity of structures. After Northridge and Kobe earthquakes, many researchers have tried to achieve more ductile connections. Ductility of connections causes to dissipate more energy before failure of connections. Also, some researchers have

Lat. Am. j. solids struct.. Publicado em: 14/11/2018

3. Experimental and numerical investigation on the shock characteristics of U-notched ZL205A specimens under dynamic mixed-mode loading

Abstract Shock environment assessment and improvement during stage separation is an important issue of concern in aerospace engineering. This paper focuses on shock response caused by dynamic fracture of aluminum alloy separation plate, which usually undergoes mixed mode loading during separation. Based on Split Hopkinson Tensile Bar (SHTB) apparatus, five g

Lat. Am. j. solids struct.. Publicado em: 01/11/2018

4. GFEM STABILIZATION TECHNIQUES APPLIED TO DYNAMIC ANALYSIS OF NON-UNIFORM SECTION BARS

Abstract The Finite Element Method (FEM), although widely used as an approximate solution method, has some limitations when applied in dynamic analysis. As the loads excite the high frequency and modes, the method may lose precision and accuracy. To improve the representation of these high-frequency modes, we can use the Generalized Finite Element Method (GF

Lat. Am. j. solids struct.. Publicado em: 29/10/2018

5. Numerical experiments with the Generalized Finite Element Method based on a flat-top Partition of Unity

Abstract The Stable Generalized Finite Element Method (SGFEM) is essentially an improved version of the Generalized Finite Element Method (GFEM). Besides of retaining the good flexibility for constructing local enriched approximations, the SGFEM has the advantage of presenting much better conditioning than that of the conventional GFEM. Actually, bad conditi

Lat. Am. j. solids struct.. Publicado em: 29/10/2018

6. Effects of Amount of Glass Fiber Laminate Skins in Sandwich Composite of Filled Core

The purpose of this work is the study of the mechanical behavior of two different sandwich composite in static and fatigue analysis of three-point bending, using different amount of glass fiber laminated as skins, remaining with same total thickness. The specimens are composed of glass fiber cloth and epoxy resin. The static tests provided the mechanical pro

Mat. Res.. Publicado em: 29/10/2018

7. Analysis of sensor placement in beams for crack identification

Abstract A previous study has shown that the mode shapes of a beam are more sensitive to damage than other vibrational parameters, thus making them better suited for crack identification purposes. However, they have the disadvantage of being more difficult to be measured. To overcome this difficulty, an interesting idea is to monitor changes produced by crac

Lat. Am. j. solids struct.. Publicado em: 29/10/2018

8. A computational framework for predicting onset and crack propagation in composite structures via eXtended Finite Element Method (XFEM)

Abstract The eXtended Finite Element Method (XFEM) has been reliably used for analyzing crack growth in 3D structural elements over last years. In fact, many researchers have worked in this field, but it is scarce to find scientific contributions about 3D XFEM models applied to the failure of non-standard composite parts, such as tapered structures and thick

Lat. Am. j. solids struct.. Publicado em: 29/10/2018

9. Buckling Analysis of Laminated Anisotropic Kirchhoff’s Plates via The Boundary Element Method

Abstract A new fundamental solution for laminated anisotropic Kirchhoff’s plates with out-of-plane and in-plane compressive loads is derived here. The multicompressed solution for both isotropic and anisotropic cases is obtained via the Radon Transform. Some fundamental kernels of the integral equations are described in detail. BEM results of displacements

Lat. Am. j. solids struct.. Publicado em: 22/10/2018

10. Sensitivity analysis of 3D frictional contact with BEM using complex-step differentiation

Abstract This paper presents a study of the complex step differentiation method applied to a parameter sensitivity analysis for 3D elastic contact problem. The analysis is performed with the Boundary Element Method (BEM) using discontinuous elements and the Generalized Newton Method with line search (GNMls). A standard BEM implementation is used and the cont

Lat. Am. j. solids struct.. Publicado em: 22/10/2018

11. On the Counterpropagation of Waves

Abstract This work analyses the counterpropagation of transversal plane waves in a linear, homogeneous, nondispersive, and isotropic medium. Although this is a traditional subject in disciplines associated with wave phenomena, a propagation analysis is not found in the literature. With this purpose, the resultant wave and consecutively its phase velocity in

Rev. Bras. Ensino Fís.. Publicado em: 18/10/2018

12. Reinforced Concrete Beam-Column Inverted Knee Joint Behaviour after Ground Corner Column Loss-Numerical Analysis

Abstract Beam-column joints are critical component in the load path of reinforced concrete (RC) frames, due to their role in transferring loads among different RC frame components. The loss of a ground corner column in a RC frame turns an exterior joint into an inverted knee joint and recent code provisions for exterior joints are not sufficient to knee join

Lat. Am. j. solids struct.. Publicado em: 04/10/2018