Finite element modelling of externally shear -strengthened beams using fibre reinforced polymers

Finite element model for nonlinear analysis of steel–concrete composite beams using Timoshenkos beam theory

... elements for composite beams with deformable shear connection”, Finite Elements in Analysis and Design, 40 (13-14), 1907-1930 Nguyen, Q H., Hjiaj, M., Uy, B and Guezouli, S (2009), Analysis of composite ... analysis of composite beams with incomplete interaction”, Proc Soc Exp Stress Anal, 9(1), 75–9 Gattesco, N (1999), “Analytical modeling of nonlinear behavior of composite beams with deformable connection”, ... “Non-linear analysis of composite beams by a displacement approach”, Comput Struct, 80(27–30), 2217–2228 Ranzi, G., Bradford, M.A and Uy, B (2004), “A direct stiffness analysis of a composite beam with...

Numerical analysis of externally prestressed concrete beams part 2

... surface of cross section -118- 900 21 50 21 50 27 5 D2 D1 1700 25 0 P 325 P 1800 1700 100 520 0 Beam s A1 and A2 21 50 21 50 900 27 5 P D2 D1 1700 1800 375 325 P 1700 520 0 Beam s B1 21 50 21 50 900 27 5 D1 D2 ... e2θ ; * v1 = v1 ; * v2 = v2 ; θ 1* = θ ; * 2 = 2 ; where e1 and e2 are the eccentricities of cable at the deviators and 2, respectively -114- (6.7) u2*,v2*,θ 2* Cable v1 u1 e2 v2 θ 2* 2 u2 ... responses of beams A1-B1 120 Applied load [kN] 100 80 60 40 Beam A2 20 Calc Exp Calc Exp 0.08 0.1 Beam B2 -0. 02 0. 02 0.04 0.06 0. 12 Displacement [m] b) Load-displacement responses of beams A2-B2 Fig.6.14...

Numerical analysis of externally prestressed concrete beams part 1

... [K 11 ] 1 ({ΔF1 } + {R1 } − [K 21 ]{ΔU }) (2.22) {ΔF2 } = [K 22 ]{ΔU } + [K12 ]{ΔU } − {R2 } (2.23) K 12 ⎤ K 22 ⎥ ⎦ ⎧ ΔU ⎫ ⎬ ⎨ ⎩ΔU ⎭ (1) ⎧ ΔF ⎫ ⎧ R ⎫ = ⎨ 1 +⎨ 1 ⎩ΔF2 ⎭ ⎩ R2 ⎭ ⎡ K 11 ⎢K ⎣ 21 Solving ... (3 .18 a) 12 K 6K 12 K 6K ⎤ ⎡ ⎢0; − L3 ; − L2 ; 0; L3 ; − L2 ⎥ ⎣ ⎦ 12 K 1+ L2 (3 .18 b) ⎡ 12 ⎛ 12 K ⎞ 6 12 ⎛ 12 K ⎞ ⎤ 0; − + x; ⎜ − − ⎟ + x; 0; − x; ⎜ − ⎟ + x⎥ ⎢ L⎠ L ⎦ 12 K L L L L ⎝ L ⎝ L L ⎠ L 1+ ... element of matrix [Kc] can be defined as below equations: M N K c 11 = ∑∑ j =1 k =1 K c12 = M N ∑∑ M N L2 i b jk E jk j =1 k =1 K c13 = ∑∑ b jk E jk TsL4 i b jk E jk j =1 k =1 TsLi (q k +1 − q k...

finite element analysis of pulsed

... are ﬁrst conducted to verify the ﬁnite element analysis of melting and solidiﬁcation Results of ﬁnite element analysis are compared with exact solutions of solidiﬁcation and melting problems given ... for the elements involved in phase change are computed by the method of element removal and reactivation and the use of a new initial temperature at T s to calculate the stress/strain of the solidiﬁed ... 2.3 The Method of Element Removal and Reactivation In order to model the phenomena of melting and solidiﬁcation, the element removal and reactivation method, ͓15͔, is applied An element will be...

finite element analysis of structural steelwork beam to column bolted connections 2001

... apportioned to material strain hardening and the remaining 20% to dispersal into the beam web Test E3 failed at a connection moment of 290 kNm due to thread stripping of both the bolts and nuts local to ... 1.34 Column flange bending E5 147 kN 253 kN 1.72 Column flange bending Table - Full Scale Test Results Finite Element Model MYSTRO and LUSAS FEA software was used for the finite element analysis ... thick shell elements comprising either or nodes each with degrees of freedom and are used to model the beam and column webs, beam closing plate, column back flange and stiffeners JNT4 elements are...

Báo cáo nghiên cứu khoa học: "FINITE ELEMENT ANALYSIS OF ELASTO-PLASTIC BOUNDARY FOR SOME STRUCTURE PROBLEMS" pot

... (mm) Fig Uniform load – displacement curves for meshes M1, M2, M3 and Owen’s FE Table Distribution of plastic layers of some sections at elements with various uniform load of mesh M2 Uniform load ... no account of transverse shear deformation The governing equation: [Kf + Ks]ϕ - f = (8) where, the submatrices of Kf and Ks and subvectors of f for element e Element stiffness matrix by using ... curves for meshes M2, M4 and M5 Table2 Comparison of displacement at mid-point of the beam with formulation of shear stiffness matrix [Ks] computed with 1-Gauss point and 2-Gauss point rule of mesh...

$finite element analysis of fracture in concrete structures state of the art$

finite element analysis of fracture in concrete structures state of the art

... incorporate the model into the finite element analysis is by employing interface elements The first interface element was formulated by FINITE ELEMENT ANALYSIS OF FRACTURE IN CONCRETE STRUCTURES ... CHAPTER 1—INTRODUCTION In this report, the state -of- the- art in finite element modeling of concrete is viewed from a fracture mechanics perspective Although finite element methods for modeling fracture ... on the structure size However, this last point does not alter the general meaning of the term “size effect.” In contrast, in the field of fracture of metals, the FINITE ELEMENT ANALYSIS OF FRACTURE...

Development of a realistic finite element model of human head and its applications to head injuries

... facial bones and cranial bones as well as intracranial injuries are evaluated based on the tolerance limits of the biomechanical parameters General trend of maximum intracranial biomechanical parameters ... thanks to all of my colleagues and my best friends Arpan Gupta, Guo Shifeng, Zhu Jianhua, Zhuang Han, Liu Yilin, Kyrin Liong, Saeid Arabnejad Khanooki, Shahrokh Sepehri Rahnama, Ahmadali Tahmasebimoradi, ... wave propagation paths in the facial skeleton and the intracranial brain presented to study the association of the traumatic brain injury (TBI) with the facial trauma sequences Fractures of facial...

An integrated finite element analysis of CFRP laminates from low velocity impact to CAI strength prediction

... performed to study the damage pattern on CFRP laminates arising from low- velocity impact, and to predict the CAI strength of impact damaged composites The impact event and CAI test are two separate topics, ... important measure of damage tolerance of composite materials Extensive experimental research has been performed on the topic of low- velocity impact of CFRP laminates and its consequent CAI strength ... 171 Chapter INTEGRATED FE ANALYSIS FROM LOW- VELOCITY IMPACT TO CAI STRENGTH PREDICTION 173 6.1 Description of integrated FE analysis 175 6.2 Results and discussions ...

Finite element modeling of hybrid fiber ECC targets subjected to impact and blast

... study The objective of this research is to study the behaviors of hybrid- fiber ECC targets subjected to impact and blast loading and to evaluate the potential of hybrid- fiber ECC as protective ... FINITE ELEMENT MODELING OF HYBRID- FIBER ECC TARGETS SUBJECTED TO IMPACT AND BLAST LEE SIEW CHIN (B Eng (Hons), UTM) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ... targets subjected to blast loading 1.3 Finite Element (FE) modeling of impact and blast loading on cementbased targets Theoretical studies on structures subjected to impact and blast loading involve...

Three dimensional finite element analysis of earth pressure balance tunnelling

... viability of applying three- dimensional finite element analyses to the prediction of ground movement arising from earth pressure balance tunnelling It seeks to address two of the issues involved in three- dimensional ... z-direction of the Cartesian-ordinates Z excav excavation step sizes 2-D two -dimensional 3-D three- dimensional EPB earth pressure balance EPCG element- by -element PCG EQMR element- by -element quasi-minimal ... analyses but not in the two -dimensional analyses Key Words: Krylov subspace, iterative, ill-conditioning, three- dimensional finite element analysis, Earth Pressure Balance tunnelling, ground loss...

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Finite element study of 2d equivalence to 3d analysis of a discrete soil nail problem with applications to serviceability design

... Āplate, nail (m2) Aplate, Anail (m2) Ān Cross sectional area of 2D idealized plate and 3D nail Contact surface area of 2D idealized plate and 3D nail with soil Cross sectional area factor Af ... encountered by soil nailing (c) Combination of Internal and External Failure 1.1.3 Advantages and Disadvantages of Soil Nailing as a Geotechnical Application The main advantages of soil nailing are its ... Disadvantages of Soil Nailing as a Geotechnical Application 1.1.4 Development of Soil Nail Applications with Time 1.2 Use of FE Analysis as a Design and Analysis Tool in Soil Nailing...

Finite element study of oil tank foundation system

... pile raft is also a possible type of oil tank foundation system 2.2 Tank foundation review 2.2.1 Stability A tank stability study of 40 tanks, which included foundation shear failures and ruptures, ... analyses to study the effect of pile cap area, thickness of overlying granular material, number of piles, and stiffness of bed layer of a pile foundation system supporting an oil tank over soft clay ... FINITE ELEMENT STUDY ON OIL TANK FOUNDATION SYSTEM BUI THI YEN (M.Eng) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF CIVIL ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE...

Finite element study of tunnel soil pile interaction

... the completion of this thesis would not have been possible i FINITE ELEMENT STUDY OF TUNNEL- SOIL- PILE INTERACTION Cheng Ch’ng Yih National University of Singapore ABSTRACT This study was initiated ... analysis of tunnel- soil- pile interaction study can be performed 1.2 Objectives and Scope of Study Due to the inherent nature of the problem where a pile is cast/driven long before a tunnel is ... 73 Summary of soil and pile properties 73 List of factors varied and kept constant .78 Summary of properties assigned to soil, pile and soil- pile interface .98 Summary of properties...

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