Bending of beams

Applying nanosilica, as cementitious materials in concrete mixes, is expected to be an improving technique, from both mechanical properties and durability points of view. Th is study aims to analyse the characteristics of fractures in concrete beams incorporating nano  silica in bending tests, such as fracture energy, characteristics of crack length, and crack propagation.
6p vistephenhawking 26042022 5 1 Download

The dependence of loadcarrying capacity on span length of beams, which contained a combination of normal strength concrete (NC)  Highperformance fiberreinforced concrete (HPFRC), was investigated in this study. The used HPFRC contained 1.0 vol.% long hooked blended with 0.5% short smooth fibers. Two types of span length were designed as 300 mm and 450 mm while dimensions of beam sections were identical with depth × width of 150 × 150 mm2.
12p chauchaungayxua12 09072021 11 0 Download

Effects of endplate on the lateral buckling of doubly symmetrical Isection cantilever beam with free end restrained laterally are analyzed using the software COMSOL and linear shell finite elements. The torsional stiffness of the endplate prevents the free warping of flanges and decreases the warping effective length of the cantilever beam.
8p chauchaungayxua12 09072021 11 0 Download

Lecture Mechanics of materials  Chapter 6: Symmetric bending of beams. The main contents of the chapter consist of the following: develop the discipline to visualize the normal and shear stresses in symmetric bending of beams,..,
38p lijian 29062021 8 0 Download

Lecture Mechanics of materials  Chapter Six: Symmetric bending of beams. The main contents of the chapter consist of the following: the theory of symmetric bending of beams, its limitations, and its applications for a strengthbased design and analysis,...
73p lijian 29062021 5 0 Download

In this paper, the mechanical behavior of symmetric FGM sandwich beams where each component layer is made from different funtionally graded materials and conected to one another by shear connectors is carried out. The finite element formulations are constructed based on the firstorder shear deformation theory (FSDT) of Timoshenko for beam and finite element method. The calculation program is coded in the MATLAB environment and compared the results with particular cases.
11p cothumenhmong11 05052021 7 0 Download

The objective of the thesis is to develop the iterative method and combining it with other methods to study qualitative and especially the method of solving some twopoint boundary problems for the fourthorder differential equations and systems, arising in beam bending theory without using condition of growth rate at infinity, Nagumo condition, etc. of the righthand side function.
27p capheviahe27 23022021 5 2 Download

This paper describes design and calculation of an electrothermal Vshaped actuator (EVA) and an amplification mechanism integrated into a force measuring microsystem (FMMS), aims to apply for characterization of a micro beam. Displacement and driving force are generated by thermal expansion of the Vshaped silicon beams while applying a voltage to the electrodes of the EVA. ANSYS simulation helps to find out the relations between thermal force and displacement corresponding to driving voltage and determine the temperature of Vshaped beam at various applying voltages.
8p trinhthamhodang9 10122020 9 0 Download

Lecture Strength of Materials I  Chapter 7: Bending. The following will be discussed in this chapter: Introduction, bending stress, shearing stress in bending, strength condition, sample problems, deflections of beam, statically indeterminate beams.
58p larachdumlanat122 28112020 22 1 Download

. In the pilesoil model, the lateral load is located at the pile head including both lateral force and bending moment. The single pile is considered as a beam on elastic foundation while shear beams model the soil column below the pile toe. The differential equations governing pile deflections are derived based on the energy principles and variational approaches.
14p cothumenhmong8 04112020 8 0 Download

This paper presents an investigation into the flexural behaviour of basalt FRP reinforced concrete beams through experimental and analytical methods. To achieve the research objectives, four concrete beams reinforced with steel and four identical concrete beams reinforced with BFRP bars were tested under fourpoint bending.
16p tohitohi 19052020 5 1 Download

This paper presents the elastic largedisplacement analysis of planar steel frames with flexible connections under static loads. A corotational beamcolumn element is established to derive the element stiffness matrix considering the effects of axial force on bending moment (P∆ effect), the additional axial strain caused by end rotations and the nonlinear moment – rotation relationship of beamtocolumn connections.
10p elandorr 05122019 22 0 Download

Timber is highly anisotropic. It behaves differently in diverse directions. Tension and compression perpendicular to the grain present a low strength with respect to the ones parallel to the grain. To compensate for the lack, the selftapping screw is an excellent choice for reinforcing the timber. This paper focuses on the notched timber beam with the experimental and numerical results. In the first part, the experimental results of the unreinforced notched beams and the screw reinforced notched beams under bending load will be presented.
7p caygaocaolon1 13112019 5 0 Download

We added CaCO3 whiskers into polyvinyl alcohol (PVA)steel hybrid fiber system to obtain multiscale hybrid fiber reinforced cement mortar (MHFRC). Threepoint bending (3pb) tests were carried out on 64 notched beams to investigate fracture behavior of MHFRC. Double K Fracture Criterion (DKFC) and Work Fracture Method (WFM) were employed to obtain fracture parameters. Influence of the volume fraction of CaCO3 whiskers, content of PVAsteel hybrid fiber and water/ cement ratio (w/c) on fracture parameters are discussed.
33p christian2605 11102019 20 1 Download

Elastostatic bending behavior of a twodirectional functionally graded sandwich (2DFGSW) beam under various types of nonuniform distributed load is studied. The beam is considered to be formed from a pure ceramic hardcore and twodirectional functionally graded (2DFG) skin layers.
20p vithomasedison2711 14082019 9 0 Download

This paper presents an experimental programme conducted on a number of six reinforced concrete (RC) beams in order to investigate the developments of strain and stress, momentcurvature relationship, failure mode and the ultimate strength on normal sections (USoNS) of this type of basic structural element.
9p vinobita2711 31052019 20 0 Download

In this paper, the Timoshenko beam theory is developed for bending analysis of functionally graded beams having porosities. Material properties are assumed to vary through the height of the beam according to a power law.
13p vinobita2711 31052019 6 0 Download

The text presents the theoretical base for the construction of the program CGPTROl. The fictitious crack model and the finite element method are employed for analyzing. This program is created to investigate twodimensional models for the initiation and growth of the Imode crack in notched beams in bending. The final result of the fradtu"e analysis is ·the loaddeflection diagram for the prediction of the cohesive crack growth in concrete notched beam in bending.
9p chikychiky 01112018 37 0 Download

This article presents an approach to assess safety levels of structures. A new formula for determining the fuzzy reliability of structures is proposed for the case where the set of loading effect and set of structural durability are general fuzzy sets. Illustration example concerning the bending strength evaluation of a simplebeam structure, is presented with the choice of triangular fuzzy sets for loading effect and structural durability.
8p thienthanquydu 17102018 34 0 Download

The study of fluctuations of structures in general and bridge structures in particular under the influence of moving loads considering the impact of vehicle braking forces draws the attention of many scientists. However, due to the complexity of this problem a static method has been so far applied for approximate calculation in bridge design standards. In this article the author introduces the equation of bending vibrations of beam elements according to the model of dynamic interaction between beam elements and moving vehicle loads considering vehicle braking forces.
14p thienthanquydu 17102018 34 0 Download