Crush Mechanics of Thin-Walled Tubes

Thin-walled structures can be used to absorb impact energy during a vehicle collision. Crush Mechanics of Thin-Walled Tubes describes the analysis and design of these lightweight elements and thoroughly explains the deformation behaviors of thin-walled hollow members under crushing loading. The book covers, in detail, thin-walled structures-under axial compression, bending, and torsion. It provides a complete understanding of the underlying concepts and mechanisms of energy absorption components, includes analysis techniques, and covers existing theoretical approaches along with the author's research.

Geared toward engineering students, practicing mechanical and structural engineers, and researchers interested in analyzing energy absorption and designing structures that may undergo impacts, this book:

• Addresses axial compression of circular and square tubes, and bending and torsion of tubes
• Summarizes the mechanism of collapse and associated calculations for the initial peak force and the average compressive force
• Explores two factors controlling the axial collapse of a plate
• Investigates systematically the deformation characteristics of corrugated tubes under axial crush
• Provides an understanding of the collapse behavior of members undergoing bending deformation when trying to evaluate strength and energy-absorption characteristics
• Looks at the bending deformation of circular and square tubes
• Explains the characteristic flattening phenomenon, the maximum moment in bending deformation, and the moment-rotation relation during bending collapse
• Discusses the collapse behavior of thin-walled structures with an open cross section during axial crushing and bending deformation
• Includes the proposition of a new method for evaluating the maximum bending moment of square tubes with consideration of sidewall buckling
• Proposes a new technique that can be used to determine the relation between the bending moment M and the rotation angle *
• *Presents analysis methods for predicting the maximum torsion moment in each case

A shelf-worthy reference showcasing structural mechanics, Crush Mechanics of Thin-Walled Tubes provides a basic understanding of the fundamental concepts and mechanisms of crushing deformations in thin-walled structures and serves as a guide for both teaching and self-study.

Autorentext

Dai-heng Chen earned his M.S and Dr. of Engineering at Kyushu University, Japan. His professional experience includes work as an engineer at the Wuxi Steel Mill (Wuxi, China), and as a Research Associate, Institute of Mechanics, Academia Sinica; Beijing, China. His academic career includes time at Jiangnan University in Wuxi, China; Kyushu Institute of Technology in Iizuka, Japan; and the Science University of Tokyo, Japan. Currently Dr. Chen serves as a Professor at Jiangsu University in Zhenjiang, China.

Inhalt

**Axial Compression of Circular Tubes
**Axisymmetric Buckling of Circular Tubes
Axisymmetric Crushing of Circular Tubes After Buckling
Non-Axisymmetric Crushing of Circular Tubes
Deformation Modes in the Axial Crushing of Circular Tubes
Effects of Stiffeners

Axial Compression of Square Tubes
**Characteristics of Axial Compressive Deformation of Square Tubes
Buckling and Collapse Force of a Plate
Buckling and Collapse Force of Square Tubes
Average Force in the Axial Crushing of Square Tubes
Influence of Partition Walls on the Axial Crushing of Polygonal Tubes

Axial Compression of Corrugated Tubes
**Axially Grooved Circular Tubes
Axially Corrugated Tubes
Circumferentially Corrugated Tubes

Bending of Tubes
**Bending Deformation of a Cylinder
Bending Deformation of Rectangular Tubes

Thin-Walled Structures with an Open Cross Section
**Basic Mechanisms of Plastic Collapse of Plates
Plastic Collapse During Axial Crushing
Bending Collapse Due to Buckling
Bending Collapse Due to Cross-Sectional Flattening

Torsion
**Shear Buckling of Plates
Torsion of Cylinders
Torsion of Square Tubes

Bibliography