Shear strengthening of reinforced-concrete beams using advanced composite materials
Strengthening of RC beams and frames by external prestressing
... Transformation of External Tendons 77 4.8 Summary 80 iv Table of Contents Chapter Strengthening of RC Frames with External Tendons 104 5.1 General 104 5.2 Response of RC Frames Strengthened with External ... application of external posttensioning in strengthening simple-span and continuous beams, as well as in strengthening beams in RC frames The scope of the research covers: Evaluation of direct design ... application of external posttensioning in strengthening simple-span and continuous beams, as well as in strengthening beams in RC frames The study focused on: (1) proposal of a direct design and analysis...
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Experimental study of passive cooling of building facade using phase change materials to increase thermal comfort in buildings in hot humid areas
... the buildings It is the new way to design the smart buildings with light weight by incorporating the PCMs inside the hollow cavity of brick Environment Friendly Cooling of building using phase change ... benefits remain uncertain, especially for the residential sector This study investigates the potential of using PCM for thermal heat storage in building facades in hot humid climates This integration ... resulting in rapid swings of internal temperature Optimized selection of building materials for making the external envelop also plays an important role in achieving thermal comfort in buildings, ...
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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...
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BUCKLING OF CYLINDRICAL INFLATABLE COMPOSITE BEAMS USING ISOGEOMETRIC ANALYSIS mất ổn ĐỊNH của dầm hơi HÌNH TRỤ sử DỤNG PHƯƠNG PHÁP ĐẲNG HÌNH học
... accuracy of the proposed method The fast convergence and using less DOFs also show the robustness of the isogeometric analysis inflatable composite beam models that promissing in further analysis of ... khoa học công nghệ toàn quốc khí - Lần thứ IV CONCLUSIONS The linear eigen buckling of the inflatable composite beams is successfully obtained in the framework of NURBS-based isogeometric analysis ... of Green-Lagrange strain tensor are employed in considering linear eigen buckling analysis of the beam 3.2 Finite element formulations 3.2.1 Linear eigen buckling In case of linear buckling analysis, ...
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Báo cáo y học: "Monte Carlo Commissioning of Low Energy Electron Radiotherapy Beams using NXEGS Software"
... photons and electrons in a variety of treatment modalities including intensity modulated radiotherapy (IMRT) and dynamic arc therapy The package includes, for both photons and electrons, commissioning ... regardless of the composition of commissioning sets, mean values of the seven confidence limits are typically less than %/mm over most of the range of depths and SSDs we examined, though quality of the ... simulate radiotherapy treatment units Med Phys 1995;22:503-24 Ma C-M, Faddegon BA, Rogers DWO, Mackie TR Accurate characterization of Monte Carlo calculated electron beams for radiotherapy Med Phys...
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Báo cáo " Study on wave prevention efficiency of submerged breakwater using an advanced mathematical model " pot
... CMED model to study the interaction of waves and a submerged breakwater and to consider the wave prevention efficiency of the submerged breakwater The study is focused on the influence of submerged ... of submerged breakwater that can give a good performance of the breakwater in prevention of waves From the results of the first experiment, there is a question: is there any effective range of ... effective wave prevention breakwater in practice Conclusions In this study, numerical experiments for the interaction of waves and submerged breakwater have been investigated using the advanced Navier-Stokes...
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ADVANCED MECHANICS OF COMPOSITE MATERIALS Episode 1 ppt
... Asbestos 15 –20 15 –30 10 –50 15 –40 75 10 –20 25 5 15 15 – – 0.2 16 0 550 580 540 17 0 250 18 0 10 0 400 17 50 270 560 17 00 23 36 22 28 5.9 5.5 13 12 .7 – – 16 0 1. 5 0.8 1. 5 1. 5 1. 32 1. 5 1. 25 1. 24 1. 35 – ... 470–530 18 5 450 480 90 1. 75 1. 78 2.5–2.6 3.96 2.4–2.7 4.9 2.5 1. 9 400 15 0 15 0 10 0 11 0 30 10 0 70 17 ,10 0 47,700 16 ,800 13 ,300 7700 910 0 10 ,000 4700 g s e ds de s b a e Fig 1. 4 Introduction of secant ... Bismaleimide 60–90 30–70 40–70 25–50 55 11 0 80 2.4–4.2 2.8–3.8 7 11 6.8 10 3.2 4.2 1. 2 1. 3 1. 2 1. 35 1. 2 1. 3 1. 35 1. 4 1. 3 1. 43 1. 2 7.5 5.8 5.8 3.7 8.5 6.7 350 310 910 740 240 350 Thermoplastic polymers...
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ADVANCED MECHANICS OF COMPOSITE MATERIALS Episode 2 ppsx
... γxy = 2 12 = 2 21 , σz = σ33 τyz = 23 = σ 32 εz = ε33 γxz = 2 13 = 2 31 , γyz = 2 23 = 2 32 Then, Eq (2. 39) can be written as dW = dU dV V (2. 40) 46 Advanced mechanics of composite materials where ... ⎢ ⎢ ⎢ ⎣ S11 S21 S31 S41 S51 S61 S 12 S 22 S 32 S 42 S 52 S 62 S13 S23 S33 S43 S53 S63 S14 S24 S34 S44 S54 S64 S15 S25 S35 S45 S55 S65 S16 S26 S36 S46 S56 S66 ⎤ ⎥ ⎥ ⎥ ⎥ ⎥ ⎥ ⎦ (2. 47) Eq (2. 46) are referred ... ∂z (2. 30) (x, y, z) Substituting displacements, Eq (2. 29), into Eqs (2. 28), and transforming to variables x, y, z with the aid of Eqs (2. 30), and taking into account Eqs (2. 22) , we arrive at 2...
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ADVANCED MECHANICS OF COMPOSITE MATERIALS Episode 3 ppt
... 10 30 -mm-long Fig 3. 30 Specimens of matrix material Fig 3. 31 Testing of the matrix specimen 88 Advanced mechanics of composite materials fiber segments All of them are rather specific because of ... solution for Eq (3. 33) is An = B cos nθ + C sin nθ (3. 35) whereas Eq (3. 34) yields, after some transformation, λ = 2µ sin θ (3. 36) Substituting the solution, Eq (3. 35), into Eq (3. 30), we obtain, ... µ2 + An−1 = =0 (3. 30) (3. 31) (3. 32) The finite-difference equation, Eq (3. 31), can be reduced to the following form An+1 − 2An cos θ + An−1 = (3. 33) where cos θ = − λ2 2µ2 (3. 34) As can be readily...
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ADVANCED MECHANICS OF COMPOSITE MATERIALS Episode 4 ppt
... Fig 3 .45 A mandrel for test rings – experimental results) 108 Advanced mechanics of composite materials Fig 3 .46 Two-, four-, and eight-sector test fixtures for composite rings Fig 3 .47 A composite ... For example, the compressive strength of composites 122 Advanced mechanics of composite materials Fig 3. 64 Failure mode of a unidirectional carbon–epoxy composite under longitudinal compression ... ν21 106 Advanced mechanics of composite materials s1, MPa 240 0 – s1 2000 1600 1200 s+ 800 40 0 e1, % 0 0 .4 0.8 1.2 1.6 (a) s2 ; τ12, MPa 300 s2– 200 100 t12 s2+ e2 ; g 12, % 0 (b) Fig 3 .43 Stress–strain...
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ADVANCED MECHANICS OF COMPOSITE MATERIALS Episode 5 potx
... static and cyclic tensile loading Mechanics of Composite Materials, 20(1), 44 52 Mileiko, S.T (1982) Mechanics of metal-matrix fibrous composites In Mechanics of Composites (Obraztsov, I.F and Vasiliev, ... 2.9 and the rule of summation over repeated subscripts) dU = σij dεij , σij = ∂U ∂εij (4.8) 138 Advanced mechanics of composite materials s, MPa 50 40 30 20 10 e, % 0 0 .5 1 .5 2 .5 Fig 4.6 A typical ... Filament-wound composite pressure vessel with a polyethylene liner Courtesy of CRISM 1 35 136 Advanced mechanics of composite materials z x sz tyz txz txz sx txy y tyz txy sy Fig 4 .5 An isotropic...
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ADVANCED MECHANICS OF COMPOSITE MATERIALS Episode 6 ppt
... A 56 = A65 = (G13 − G23 )cs A 66 = G13 s + G23 c2 (4.72) cs 166 Advanced mechanics of composite materials where E 1, = E1, , − ν12 ν21 E12 = E ν12 + 2G12 , c = cos φ, s = sin φ The dependence of ... = 0. 365 mm, h2 = 0.735 mm, E1 = 56 GPa, E2 = 17 GPa, 192 Advanced mechanics of composite materials G13 = 5 .6 GPa, G23 = 6. 4 GPa, ν13 = 0.095, ν23 = 0.35, σ + = 25.5 MPa The distributions of stresses ... A0 11 22 S4 = A0 + A0 − 2A0 − 4A0 11 22 12 44 S5 = A0 + A0 55 66 S6 = A0 − A0 55 66 (4.73) Chapter Mechanics of a composite layer 167 where A0 are stiffness coefficients corresponding to φ = It...
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Từ khóa: strengthening of bridge girders using cfrp laminates4—shear strengthening of an interior t beam5—shear strengthening of an exterior columnflexural strength for negative bending and vertical shear strength of composite steel slag concrete beamscase histories advanced composite repairs of usaf c 141 and c 130 aircraftemphasis in the application of frp strips for shear strengtheningadvanced visualization analysis and inference of biological networks using visantteam lib using advanced findlinked list implementation of list adt using cimplementation of list adt using arrays in cimplementation of list adt using arraysbasics of image processing using matlabfundamental of data structure using c pdfproject of image processing using matlabapplication of image processing using matlabBáo cáo thực tập tại nhà thuốc tại Thành phố Hồ Chí Minh năm 2018Báo cáo quy trình mua hàng CT CP Công Nghệ NPVNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDEQuản lý hoạt động học tập của học sinh theo hướng phát triển kỹ năng học tập hợp tác tại các trường phổ thông dân tộc bán trú huyện ba chẽ, tỉnh quảng ninhPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhNghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùngThiết kế và chế tạo mô hình biến tần (inverter) cho máy điều hòa không khíBT Tieng anh 6 UNIT 2Tranh tụng tại phiên tòa hình sự sơ thẩm theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn xét xử của các Tòa án quân sự Quân khu (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtchuong 1 tong quan quan tri rui roGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtChiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015