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This book studies the flow of materials and the influence of strain rates on the relationship between imposed stresses and the dynamic deformations obtained. It provides applications for shaping, molecular molding, shrink-fit assembly and welding, including details of the various specific processes for implementation at high strain rates, illustrated by numerous industrial examples. Rheology, Physical and Mechanical Behavior of Materials 2 presents studies on the dynamic behavior of materials when subjected to mechanical, electromagnetic and electrohydraulic actions. The topics covered…mehr
This book studies the flow of materials and the influence of strain rates on the relationship between imposed stresses and the dynamic deformations obtained. It provides applications for shaping, molecular molding, shrink-fit assembly and welding, including details of the various specific processes for implementation at high strain rates, illustrated by numerous industrial examples.
Rheology, Physical and Mechanical Behavior of Materials 2 presents studies on the dynamic behavior of materials when subjected to mechanical, electromagnetic and electrohydraulic actions. The topics covered include dynamic structural memory, molecular molding, shaping, assembly and welding.
It is aimed at researchers involved in the mechanics of deformable media, as well as industrial design and manufacturing departments.
Maurice Leroy is a lecturer and professor at the University of Nantes, France, as well as director of the Composite and Metallic Formations research laboratory at the IUT. He was instrumental in the creation of France’s first Materials Science and Engineering department.
Inhaltsangabe
Preface ix
Chapter 1 Dynamics from Electromagnetic Effects 1
1.1 Electromagnetic shocks and applications 1
1.1.1 Introduction 1
1.1.2 Electromagnetic shocks 2
1.1.3 Magnetic field and induced current in metals 9
1.1.4 Current and magnetic field measurement 18
1.1.5 Skin thickness 19
1.1.6 Electromagnetic pressure 20
1.1.7 Orders of magnitude of the magnetic field and the electromagnetic energy density to obtain a deformation 21
1.2 Deformation by electromagnetic pulses 23
1.2.1 Displacement, kinetic energy and deformation rate 23
1.2.2 Pulse of the electromagnetic stress 31
1.2.3 Publications 43
Chapter 2 Dynamics from Electrohydraulic Effects 59
2.1 Introduction 59
2.2 Forming tanks 60
2.3 The electrohydraulic effect 62
2.3.1 Primary shock wave and secondary pressure waves 65
2.4 Actions of the wave pressures in the fluid: fluid-plate acoustic effect 69
2.4.1 Fluid-plate interaction 69
2.5 Electrohydraulic forming 73
Chapter 3 Elastic Limit Deflection, Plastic Hinge, Dynamics of Movement 77
