This book presents simple design paradigms related to lightweight design, that are derived from an in-depth and theoretically sound analysis based on Pareto theory. It uses numerous examples, including torsion and inflated tubes, to fully explain the theories discussed.__Lightweight Construction Principles__ begins by defining terms in relation to engineering design and optimal design of complex mechanical systems. It then discusses the analytical derivation of the Pareto-optimal set, before applying analytical formulae to optimal design of bent beams. The book moves through numerous case studies of different beam and tube construction including beams subject to bending, thin walled tubes under torsion and truss structures. This book will be of interest to researchers and graduate students in the field of structural optimisation and multi-objective optimization, as well as to practitioners such as design engineers. Front Matter ....Pages i-xvii Engineering Design and Optimal Design of Complex Mechanical Systems: Definitions (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 1-20 Introduction to the Optimal Design of Complex Mechanical Systems (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 21-42 Analytical Derivation of the Pareto-Optimal Set with Application to Structural Design (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 43-66 Bending of Beams of Arbitrary Cross Sections—Optimal Design by Analytical Formulae (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 67-85 Bending of Lightweight Circular Tubes—Optimal Design (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 87-108 Optimal Design of a Beam Subject to Bending: A Basic Application (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 109-131 Bending of Lightweight Inflated Circular Tubes—Optimal Design (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 133-147 Torsion of Lightweight Circular Tubes—Optimal Design (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 149-165 Stochastic Optimisation Applied to Multi-axial Bending of Lightweight Beams (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 167-187 Multi-objective Optimisation of Truss Structures (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 189-200 Topology Optimisation of Continuum Structures (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 201-214 Concurrent Topological Optimisation of Two Bodies Sharing Design Space (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 215-231 Structural Optimisation in Road Vehicle Components Design (Federico Maria Ballo, Massimiliano Gobbi, Giampiero Mastinu, Giorgio Previati)....Pages 233-270 Back Matter ....Pages 271-283 This book presents simple design paradigms related to lightweight design, that are derived from an in-depth and theoretically sound analysis based on Pareto theory. It uses numerous examples, including torsion and inflated tubes, to fully explain the theories discussed. Lightweight Construction Principles begins by defining terms in relation to engineering design and optimal design of complex mechanical systems. It then discusses the analytical derivation of the Pareto-optimal set, before applying analytical formulae to optimal design of bent beams. The book moves through numerous case studies of different beam and tube construction including beams subject to bending, thin walled tubes under torsion and truss structures. This book will be of interest to researchers and graduate students in the field of structural optimisation and multi-objective optimization, as well as to practitioners such as design engineers.