Admin مدير المنتدى
عدد المساهمات : 18660 التقييم : 34550 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
| موضوع: كتاب Mechanics and Strength of Materials السبت 06 يوليو 2013, 4:13 pm | |
|
أخوانى فى الله أحضرت لكم كتاب Mechanics and Strength of Materials Vitor Dias da Silva Department of Civil Engineering Faculty of Science & Technology University of Coimbra Polo II da Universidade - Pinhal de Marrocos
ويتناول الموضوعات الأتية :
Introduction 3 I.1 General Considerations 3 I.2 Fundamental Definitions 4 I.3 Subdivisions of the Mechanics of Materials 6 II The Stress Tensor 9 II.1 Introduction 9 II.2 General Considerations 9 II.3 Equilibrium Conditions 12 II.3.a Equilibrium in the Interior of the Body 12 II.3.b Equilibrium at the Boundary 15 II.4 Stresses in an Inclined Facet 16 II.5 Transposition of the Reference Axes 17 II.6 Principal Stresses and Principal Directions 19 II.6.a The Roots of the Characteristic Equation 21 II.6.b Orthogonality of the Principal Directions 22 II.6.c Lam´e’s Ellipsoid 22 II.7 Isotropic and Deviatoric Components of the Stress Tensor 24 II.8 Octahedral Stresses 25 II.9 Two-Dimensional Analysis of the Stress Tensor 27 II.9.a Introduction 27 II.9.b Stresses on an Inclined Facet 28 II.9.c Principal Stresses and Directions 29 II.9.d Mohr’s Circle 31 II.10 Three-Dimensional Mohr’s Circles 33 II.11 Conclusions 36 II.12 Examples and Exercises III The Strain Tensor 41 III.1 Introduction 41 III.2 General Considerations 41 III.3 Components of the Strain Tensor 44 III.4 Pure Deformation and Rigid Body Motion 49 III.5 Equations of Compatibility 51 III.6 Deformation in an Arbitrary Direction 54 III.7 Volumetric Strain 58 III.8 Two-Dimensional Analysis of the Strain Tensor 59 III.8.a Introduction 59 III.8.b Components of the Strain Tensor 60 III.8.c Strain in an Arbitrary Direction 60 III.9 Conclusions 63 III.10 Examples and Exercises 64 IV Constitutive Law 67 IV.1 Introduction 67 IV.2 General Considerations 67 IV.3 Ideal Rheological Behaviour – Physical Models 69 IV.4 Generalized Hooke’s Law 75 IV.4.a Introduction 75 IV.4.b Isotropic Materials 75 IV.4.c Monotropic Materials 80 IV.4.d Orthotropic Materials 82 IV.4.e Isotropic Material with Linear Visco-Elastic Behaviour 83 IV.5 Newtonian Liquid 84 IV.6 Deformation Energy 86 IV.6.a General Considerations 86 IV.6.b Superposition of Deformation Energy in the Linear Elastic Case 89 IV.6.c Deformation Energy in Materials with Linear Elastic Behaviour 90 IV.7 Yielding and Rupture Laws 92 IV.7.a General Considerations 92 IV.7.b Yielding Criteria 93 IV.7.b.i Theory of Maximum Normal Stress 93 IV.7.b.ii Theory of Maximum Longitudinal Deformation 94 IV.7.b.iii Theory of Maximum Deformation Energy 94 IV.7.b.iv Theory of Maximum Shearing Stress 95 IV.7.b.v Theory of Maximum Distortion Energy 95 IV.7.b.vi Comparison of Yielding Criteria 96 IV.7.b.vii Conclusions About the Yielding Theories 100 IV.7.c Mohr’s Rupture Theory for Brittle Materials 101 IV.8 Concluding Remarks IV.9 Examples and Exercises 106 Part II Strength of Materials V Fundamental Concepts of Strength of Materials 119 V.1 Introduction 119 V.2 Ductile and Brittle Material Behaviour 121 V.3 Stress and Strain 123 V.4 Work of Deformation. Resilience and Tenacity. 125 V.5 High-Strength Steel 127 V.6 Fatigue Failure 128 V.7 Saint-Venant’s Principle 130 V.8 Principle of Superposition 131 V.9 Structural Reliability and Safety 133 V.9.a Introduction 133 V.9.b Uncertainties Affecting the Verification of Structural Reliability 133 V.9.c Probabilistic Approach. 134 V.9.d Semi-Probabilistic Approach 135 V.9.e Safety Stresses 136 V.10 Slender Members 137 V.10.a Introduction 137 V.10.b Definition of Slender Member 138 V.10.c Conservation of Plane Sections 138 VI Axially Loaded Members 141 VI.1 Introduction 141 VI.2 Dimensioning of Members Under Axial Loading 142 VI.3 Axial Deformations 142 VI.4 Statically Indeterminate Structures 143 VI.4.a Introduction 143 VI.4.b Computation of Internal Forces 144 VI.4.c Elasto-Plastic Analysis 145 VI.5 An Introduction to the Prestressing Technique 150 VI.6 Composite Members 153 VI.6.a Introduction 153 VI.6.b Position of the Stress Resultant 153 VI.6.c Stresses and Strains Caused by the Axial Force 154 VI.6.d Effects of Temperature Variations 155 VI.7 Non-Prismatic Members 157 VI.7.a Introduction 157 VI.7.b Slender Members with Curved Axis 157 VI.7.c Slender Members with Variable Cross-Section 159 VI.8 Non-Constant Axial Force – Self-Weight VI.9 Stress Concentrations 161 VI.10 Examples and Exercises 163 VII Bending Moment 189 VII.1 Introduction 189 VII.2 General Considerations 190 VII.3 Pure Plane Bending 193 VII.4 Pure Inclined Bending 196 VII.5 Composed Circular Bending 200 VII.5.a The Core of a Cross-Section 202 VII.6 Deformation in the Cross-Section Plane 204 VII.7 Influence of a Non-Constant Shear Force 209 VII.8 Non-Prismatic Members 210 VII.8.a Introduction 210 VII.8.b Slender Members with Variable Cross-Section 210 VII.8.c Slender Members with Curved Axis 212 VII.9 Bending of Composite Members 213 VII.9.a Linear Analysis of Symmetrical Reinforced Concrete Cross-Sections 216 VII.10 Nonlinear bending 219 VII.10.a Introduction 219 VII.10.b Nonlinear Elastic Bending 220 VII.10.c Bending in Elasto-Plastic Regime 221 VII.10.d Ultimate Bending Strength of Reinforced Concrete Members 226 VII.11 Examples and Exercises 228 VIII Shear Force 251 VIII.1 General Considerations 251 VIII.2 The Longitudinal Shear Force 252 VIII.3 Shearing Stresses Caused by the Shear Force 258 VIII.3.a Rectangular Cross-Sections 258 VIII.3.b Symmetrical Cross-Sections 259 VIII.3.c Open Thin-Walled Cross-Sections 261 VIII.3.d Closed Thin-Walled Cross-Sections 265 VIII.3.e Composite Members 268 VIII.3.f Non-Principal Reference Axes. 269 VIII.4 The Shear Centre 270 VIII.5 Non-Prismatic Members 273 VIII.5.a Introduction 273 VIII.5.b Slender Members with Curved Axis 273 VIII.5.c Slender Members with Variable Cross-Section 274 VIII.6 Influence of a Non-Constant Shear Force 275 VIII.7 Stress State in Slender Members 276 VIII.8 Examples and Exercises IX Bending Deflections 297 IX.1 Deflections Caused by the Bending Moment 297 IX.1.a Introduction 297 IX.1.b Method of Integration of the Curvature Equation 298 IX.1.c The Conjugate Beam Method. 302 IX.1.d Moment-Area Method 304 IX.2 Deflections Caused by the Shear Force 308 IX.2.a Introduction 308 IX.2.b Rectangular Cross-Sections 311 IX.2.c Symmetrical Cross-Sections 312 IX.2.d Thin-Walled Cross-Sections. 312 IX.3 Statically Indeterminate Frames Under Bending 315 IX.3.a Introduction 315 IX.3.b Equation of Two Moments 317 IX.3.c Equation of Three Moments 317 IX.4 Elasto-Plastic Analysis Under Bending 320 IX.5 Examples and Exercises 323 X Torsion 347 X.1 Introduction 347 X.2 Circular Cross-Sections 347 X.2.a Torsion in the Elasto-Plastic Regime. 353 X.3 Closed Thin-Walled Cross-Sections 356 X.3.a Applicability of the Bredt Formulas 361 X.4 General Case 362 X.4.a Introduction 362 X.4.b Hydrodynamical Analogy 364 X.4.c Membrane Analogy. 365 X.4.d Rectangular Cross-Sections 367 X.4.e Open Thin-Walled Cross-Sections 368 X.5 Optimal Shape of Cross-Sections Under Torsion 369 X.6 Examples and Exercises 371 XI Structural Stability 389 XI.1 Introduction 389 XI.2 Fundamental Concepts 391 XI.2.a Computation of Critical Loads 391 XI.2.b Post-Critical Behaviour 393 XI.2.c Effect of Imperfections 396 XI.2.d Effect of Plastification of Deformable Elements 399 XI.3 Instability in the Axial Compression of a Prismatic Bar 401 XI.3.a Introduction 401 XI.3.b Euler’s Problem. 402 XI.3.c Prismatic Bars with Other Support Conditions XI.3.d Safety Evaluation of Axially Compressed Members405 XI.3.e Optimal Shape of Axially Compressed Cross-Sections 409 XI.4 Instability Under Composed Bending 409 XI.4.a Introduction and General Considerations 409 XI.4.b Safety Evaluation 414 XI.4.c Composed Bending with a Tensile Axial Force 416 XI.5 Examples and Exercises 416 XI.6 Stability Analysis by the Displacement Method 439 XI.6.a Introduction 439 XI.6.b Simple Examples 440 XI.6.c Framed Structures Under Bending 445 XI.6.c.i Stiffness Matrix of a Compressed Bar 445 XI.6.c.ii Stiffness Matrix of a Tensioned Bar 451 XI.6.c.iiiLinearization of the Stiffness Coefficients 452 XI.6.c.ivExamples of Application 455 XII Energy Theorems 465 XII.1 General Considerations 465 XII.2 Elastic Potential Energy in Slender Members 466 XII.3 Theorems for Structures with Linear Elastic Behaviour 468 XII.3.a Clapeyron’s Theorem 468 XII.3.b Castigliano’s Theorem 469 XII.3.c Menabrea’s Theorem or Minimum Energy Theorem 473 XII.3.d Betti’s Theorem 473 XII.3.e Maxwell’s Theorem 477 XII.4 Theorems of Virtual Displacements and Virtual Forces 479 XII.4.a Theorem of Virtual Displacements 479 XII.4.b Theorem of Virtual Forces 482 XII.5 Considerations About the Total Potential Energy 485 XII.5.a Definition of Total Potential Energy 485 XII.5.b Principle of Stationarity of the Potential Energy 486 XII.5.c Stability of the Equilibrium 486 XII.6 Elementary Analysis of Impact Loads 489 XII.7 Examples and Exercises 491 XII.8 Chapter VII 517 XII.9 Chapter IX 518 References 523 Index
أتمنى أن تستفيدوا منه وأن ينال إعجابكم
رابط تنزيل كتاب Mechanics and Strength of Materials - Vitor Dias da Silva
|
|
محمد محمد أحمد مهندس فعال جدا جدا
عدد المساهمات : 654 التقييم : 694 تاريخ التسجيل : 14/11/2012 العمر : 32 الدولة : EGYPT العمل : Student الجامعة : Menoufia
| موضوع: رد: كتاب Mechanics and Strength of Materials الأربعاء 10 يوليو 2013, 6:35 pm | |
| |
|
Admin مدير المنتدى
عدد المساهمات : 18660 التقييم : 34550 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
| موضوع: رد: كتاب Mechanics and Strength of Materials الأربعاء 10 يوليو 2013, 6:41 pm | |
|
- محمد محمد أحمد كتب:
- جزاك الله كل خير
جزانا الله وإياك خيراً |
|