Design and Analysis of Composite Structures for Automotive Applications PDF
Preview Design and Analysis of Composite Structures for Automotive Applications
Cover Page: ii Foreword Page: xiii Series Preface Page: xiv List of Symbols and Abbreviations Page: xvii Abbreviations Page: xxii Introduction Page: xxiii Composites in Automotive Chassis and Drivetrain Page: xxiii Physical Properties of Composite Materials Page: xxv Structure of the Book Page: xxx Target Audience of the Book Page: xxxiii References Page: xxxiii About the Companion Website Page: xxxv 1 Elastic Anisotropic Behavior of Composite Materials Page: 1 1.1 Anisotropic Elasticity of Composite Materials Page: 1 1.2 Unidirectional Fiber Bundle Page: 7 1.3 Rotational Transformations of Material Laws, Stress and Strain Page: 10 1.4 Elasticity Matrices for Laminated Plates Page: 14 1.5 Coupling Effects of Anisotropic Laminates Page: 17 1.6 Conclusions Page: 19 References Page: 19 2 Phenomenological Failure Criteria of Composites Page: 21 2.1 Phenomenological Failure Criteria Page: 21 2.2 Differentiating Criteria Page: 33 2.3 Physically Based Failure Criteria Page: 36 2.4 Rotational Transformation of Anisotropic Failure Criteria Page: 38 2.5 Conclusions Page: 39 References Page: 41 3 Micromechanical Failure Criteria of Composites Page: 45 3.1 Pullout of Fibers from the Elastic‐Plastic Matrix Page: 45 3.2 Crack Bridging in Elastic‐Plastic Unidirectional Composites Page: 61 3.3 Debonding of Fibers in Unidirectional Composites Page: 76 3.4 Conclusions Page: 99 References Page: 99 4 Optimization Principles for Structural Elements Made of Composites Page: 105 4.1 Stiffness Optimization of Anisotropic Structural Elements Page: 105 4.2 Optimization of Strength and Loading Capacity of Anisotropic Elements Page: 112 4.3 Optimization of Accumulated Elastic Energy in Flexible Anisotropic Elements Page: 116 4.4 Optimal Anisotropy in a Twisted Rod Page: 120 4.5 Optimal Anisotropy of Bending Console Page: 122 4.6 Optimization of Plates in Bending Page: 124 4.7 Conclusions Page: 125 References Page: 126 5 Optimization of Composite Driveshaft Page: 129 5.1 Torsion of Anisotropic Shafts With Solid Cross‐Sections Page: 129 5.2 Thin‐Walled Anisotropic Driveshaft with Closed Profile Page: 132 5.3 Deformation of a Composite Thin‐Walled Rod Page: 135 5.4 Buckling of Composite Driveshafts Under a Twist Moment Page: 142 5.5 Patents for Composite Driveshafts Page: 147 5.6 Conclusions Page: 150 References Page: 151 6 Dynamics of a Vehicle with Rigid Structural Elements of Chassis Page: 155 6.1 Classification of Wheel Suspensions Page: 155 6.2 Fundamental Models in Vehicle Dynamics Page: 159 6.3 Forces Between Tires and Road Page: 168 6.4 Dynamic Equations of a Single‐Track Model Page: 170 6.5 Conclusions Page: 182 References Page: 182 7 Dynamics of a Vehicle With Flexible, Anisotropic Structural Elements of Chassis Page: 183 7.1 Effects of Body and Chassis Elasticity on Vehicle Dynamics Page: 183 7.2 Self‐Steering Behavior of a Vehicle With Coupling of Bending and Torsion Page: 188 7.3 Steady Cornering of a Flexible Vehicle Page: 196 7.4 Estimation of Coupling Constant for a Twist Member Page: 199 7.5 Design of the Countersteering Twist‐Beam Axle Page: 203 7.6 Patents on Twist‐Beam Axles Page: 212 7.7 Conclusions Page: 214 References Page: 215 8 Design and Optimization of Composite Springs Page: 217 8.1 Design and Optimization of Anisotropic Helical Springs Page: 217 8.2 Conical Springs Made of Composite Material Page: 233 8.3 Alternative Concepts for Chassis Springs Made of Composites Page: 244 8.4 Conclusions Page: 248 References Page: 249 9 Equivalent Beams of Helical Anisotropic Springs Page: 255 9.1 Helical Compression Springs Made of Composite Materials Page: 255 9.2 Transverse Vibrations of a Composite Spring Page: 260 9.3 Side Buckling of a Helical Composite Spring Page: 266 9.4 Conclusions Page: 267 References Page: 268 10 Composite Leaf Springs Page: 269 10.1 Longitudinally Mounted Leaf Springs for Solid Axles Page: 269 10.2 Leaf‐Tension Springs Page: 276 10.3 Transversally Mounted Leaf Springs Page: 279 10.4 Conclusions Page: 286 References Page: 287 11 Meander‐Shaped Springs Page: 289 11.1 Meander‐Shaped Compression Springs for Automotive Suspensions Page: 289 11.2 Multiarc‐Profiled Spring Under Axial Compressive Load Page: 295 11.3 Sinusoidal Spring Under Compressive Axial Load Page: 299 11.4 Bending Stiffness of Meander Spring With a Constant Cross‐Section Page: 303 11.5 Stability of Corrugated Springs Page: 304 11.6 Patents for Chassis Springs Made of Composites in Meandering Form Page: 304 11.7 Conclusions Page: 304 References Page: 304 12 Hereditary Mechanics of Composite Springs and Driveshafts Page: 317 12.1 Elements of Hereditary Mechanics of Composite Materials Page: 317 12.2 Creep and Relaxation of Twisted Composite Shafts Page: 321 12.3 Creep and Relaxation of Composite Helical Coiled Springs Page: 323 12.4 Creep and Relaxation of Composite Springs in a State of Pure Bending Page: 324 12.5 Conclusions Page: 327 References Page: 327 Appendix A: Mechanical Properties of Composites Page: 331 A.1 Fibers Page: 331 A.2 Physical Properties of Resin Page: 333 A.3 Laminates Page: 334 References Page: 335 Appendix B: Anisotropic Elasticity Page: 337 B.1 Elastic Orthotropic Body Page: 337 B.2 Distortion Energy and Supplementary Energy Page: 339 B.3 Plane Elasticity Problems Page: 339 B.4 Generalized Airy Stress Function Page: 340 Appendix C: Integral Transforms in Elasticity Page: 343 C.1 One‐Dimensional Integral Transform Page: 343 C.2 Two‐Dimensional Fourier Transform Page: 344 C.3 Potential Functions for Plane Elasticity Problems Page: 344 C.4 Rotationally Symmetric, Spatial Elasticity Problems Page: 347 C.5 Application of the Fourier Transformation to Plane Elasticity Problems Page: 348 C.6 Application of the Hankel Transformation to Spatial, Rotation‐Symmetric Elasticity Problems Page: 349 Index Page: 351 End User License Agreement Page: 358
Description:A design reference for engineers developing composite components for automotive chassis, suspension, and drivetrain applications
This book provides a theoretical background for the development of elements of car suspensions. It begins with a description of the elastic-kinematics of the vehicle and closed form solutions for the vertical and lateral dynamics. It evaluates the vertical, lateral, and roll stiffness of the vehicle, and explains the necessity of the modelling of the vehicle stiffness. The composite materials for the suspension and powertrain design are discussed and their mechanical properties are provided. The book also looks at the basic principles for the design optimization using composite materials and mass reduction principles. Additionally, references and conclusions are presented in each chapter.
Design and Analysis of Composite Structures for Automotive Applications: Chassis and Drivetrain offers complete coverage of chassis components made of composite materials and covers elastokinematics and component compliances of vehicles. It looks at parts made of composite materials such as stabilizer bars, wheels, half-axes, springs, and semi-trail axles. The book also provides information on leaf spring assembly for motor vehicles and motor vehicle springs comprising composite materials.
- Covers the basic principles for the design optimization using composite materials and mass reduction principles
- Evaluates the vertical, lateral, and roll stiffness of the vehicle, and explains the modelling of the vehicle stiffness
- Discusses the composite materials for the suspension and powertrain design
- Features closed form solutions of problems for car dynamics explained in details and illustrated pictorially
Design and Analysis of Composite Structures for Automotive Applications: Chassis and Drivetrain is recommended primarily for engineers dealing with suspension design and development, and those who graduated from automotive or mechanical engineering courses in technical high school, or in other higher engineering schools.
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