A modern, unified introduction to structural modelling and analysis, with an emphasis on the application of energy methods.The study of structural analysis and design is a central subject in civil, aeronautical, and mechanical engineering. This book, a modern and unified introduction, focuses on how structures actually behave.The unifying theme is the application of energy methods, developed without the formal mathematics of the calculus of variations. Using an energy approach, book explains the relationship between equilibrium and compatibility, the unity of structural analysis, and the roles of idealization and discretization in structural modeling, and introduces the main ideas behind computational approaches to structural analysis and design.The study of structural analysis and design is a central subject in civil, aeronautical, and mechanical engineering. This book, a modern and unified introduction, focuses on how structures actually behave.The unifying theme is the application of energy methods, developed without the formal mathematics of the calculus of variations. Using an energy approach, book explains the relationship between equilibrium and compatibility, the unity of structural analysis, and the roles of idealization and discretization in structural modeling, and introduces the main ideas behind computational approaches to structural analysis and design.The study of structural analysis and design is a central subject in civil, aeronautical, and mechanical engineering. This book presents a modern and unified introduction to structural analysis, with a strong emphasis on how structures actually behave. The unifying theme is the application of energy methods, developed without the formal mathematics of the calculus of variations. The energy approach makes it possible to articulate the logical relationship between equilibrium and compatibility; emphasize the unity of structural analysis, particularly for indeterminate structures; and identify the roles lC>