LEADER 01286nam 2200253la 450 001 9910482281503321 005 20221108004244.0 035 $a(UK-CbPIL)2090297852 035 $a(CKB)5500000000090357 035 $a(EXLCZ)995500000000090357 100 $a20210618d1577 uy | 101 0 $adut 135 $aurcn||||a|bb| 200 14$aDie Unie ende Vereeninghe vande generale Staten van dese Nederlanden binnen Bruessele vergadert, waer van doriginale (onderteeckent, zoe byde prelaten, edelen, steden als andere, geaggreert... by mijne heeren vanden Rade van State...) is berustende onder den Staten tSlandts van Brabant$b[electronic resource] 210 $a[s.l.] $c[s.n.]$d1577 215 $aOnline resource (1 bl, plano) 300 $aReproduction of original in Koninklijke Bibliotheek, Nationale bibliotheek van Nederland. 700 $aAnon$0815482 801 0$bUk-CbPIL 801 1$bUk-CbPIL 906 $aBOOK 912 $a9910482281503321 996 $aDie Unie ende Vereeninghe vande generale Staten van dese Nederlanden binnen Bruessele vergadert, waer van doriginale (onderteeckent, zoe byde prelaten, edelen, steden als andere, geaggreert... by mijne heeren vanden Rade van State...) is berustende onder den Staten tSlandts van Brabant$91986492 997 $aUNINA LEADER 08267nam 22005533 450 001 9910876738603321 005 20231121080239.0 010 $a9781394255627 010 $a1394255624 010 $a9781394255603 010 $a1394255608 035 $a(MiAaPQ)EBC30954505 035 $a(Au-PeEL)EBL30954505 035 $a(CKB)28887604600041 035 $a(Exl-AI)30954505 035 $a(Perlego)4293234 035 $a(OCoLC)1410593562 035 $a(EXLCZ)9928887604600041 100 $a20231121d2024 uy 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aRheology, Physical and Mechanical Behavior of Materials 1 $ePhysical Mechanisms of Deformation and Dynamic Behavior 205 $a1st ed. 210 1$aNewark :$cJohn Wiley & Sons, Incorporated,$d2024. 210 4$dİ2023. 215 $a1 online resource (345 pages) 311 08$a9781786307651 311 08$a1786307650 327 $aCover -- Title Page -- Copyright Page -- Contents -- Preface -- Chapter 1. Dynamic Plasticity: Dislocations -- 1.1. Introduction: how to describe plasticity? -- 1.1.1. Equivalence between forming processes and mechanical tests -- 1.1.2. Early stages of strain -- 1.1.3. Multiplication of dislocations -- 1.1.4. Fine-level observations (load.unload cycles) of the beginning of plasticization -- 1.2. Strain speed: ( for shearing) -- 1.2.1. A few definitions and orders of magnitude -- 1.2.2. Influence of the strain speed -- 1.2.3. The influence of the ghistoryh of strain -- 1.2.4. Dynamic.dynamic speed jump -- 1.3. The microstructural mechanisms of plasticity -- 1.3.1. Description of a dislocation and its line -- 1.3.2. Dislocation types -- 1.3.3. Crystallographic slips -- 1.3.4. Twinning -- 1.3.5. Force on the dislocation -- Chapter 2. Obstacles and Mechanisms of Crossings -- 2.1. Obstacles -- 2.2. Nature and resistance of obstacles -- 2.3. Example of measuring dislocation speeds -- 2.4. Microstructural mechanisms of the deformation rate -- 2.5. Mechanisms due to obstacles: hardening mechanisms -- 2.5.1. Obstacles to movement due to the dislocations themselves -- 2.5.2. Interactions with the forest -- 2.5.3. (Simplified) analysis of the consolidation due to the forest dislocation -- 2.5.4. Blockages of dislocations by pileups -- 2.5.5. Piling-up of dislocations -- 2.5.6. Influence of grain size -- 2.5.7. The case of nanomaterials (very small grain size): mechanical strength and hardness (T less than 0.3 Tf) -- 2.5.8. Influence of vacancies -- 2.5.9. Vacancies and dislocations -- 2.5.10. Stacking and twinning faults -- 2.5.11. Lomer.Cottrell barriers -- 2.5.12. Influence of obstacles associated with alloy elements and impurities -- 2.5.13. Anchoring dislocations -- 2.5.14. Formation of loops around particles. 327 $a2.5.15. Substitution and insertion of atoms -- 2.5.16. Evolution of the stress due to the added elements -- 2.5.17. Hardening by precipitates -- 2.6. Athermal mechanism of the movement of a dislocation -- 2.6.1. Density of dislocations and athermal stress -- 2.7. Thermally activated mechanism of the movement of a dislocation -- 2.7.1. Model of the behavior law -- 2.8. The viscous friction mechanism -- 2.8.1. Influence of viscosity of the medium on the viscous damping coefficient B -- Chapter 3. Dynamic Flows for Monocrystals and Polycrystals -- 3.1. Type of monocristal and polycrystal dynamic shear test samples (anisotropy and isotropy at high speeds) -- 3.2. The tensor of the shock stresses -- 3.3. Study of strain on a polycrystal -- 3.4. Dynamic flows by electromagnetic shocks, polycrystalline aluminum A5 -- 3.5. The case of six polycrystals -- 3.6. The case of monocrystals -- 3.6.1. Flow of a crystal -- 3.7. Models for CFCs -- 3.7.1. Viscoplastic dynamic flows of crystals: the case of aluminum ( ? 104 s-1) -- 3.8. Dynamics of flows shown using an ultra-fast camera -- 3.8.1. Dynamics of shear shocks -- 3.9. Viscoplasticity -- 3.9.1. Influence of phonic and electronic viscous friction: the case of lead -- 3.9.2. Viscoplasticity of metal crystals: influence of viscous friction -- 3.10. References for viscoplasticity -- Chapter 4. Limits to Static and Dynamic Formability -- 4.1. Plastic instability -- 4.1.1. Necking -- 4.1.2. Work hardening coefficient n -- 4.1.3. Instabilities studies (including speed effect ...) -- 4.1.4. Role of the strain speed -- 4.1.5. Summary -- 4.1.6. Generalized strain speed -- 4.2. Forming by pressing -- 4.2.1. Study of plastic instability -- influence of work hardening and anisotropy (characteristics of pressing thin sheets). 327 $a4.2.2. Parameters influencing instability: influences of the work hardening n and the anisotropy r -- 4.2.3. Pressing and formability in bending of sheets, shaping of elliptical bulbs -- 4.3. Damage: area between necking and fracture, the case between Forming Limit Curves (FLCs) and Fracture Forming Limit Curves (FFLCs) -- 4.3.1. Definition -- 4.3.2. Damage measurement D -- 4.3.3. Large strains and damage -- 4.3.4. Stress curve, strain of a 30 CD4 steel that has undergone a perlite globularization annealing (as given by Gathouffi (1984)) -- 4.4. Limit of the formability during necking (FLCs) and during fracture (FFLCs): influence of the strain rate -- 4.4.1. Types of strain -- 4.4.2. Comparison of FLC by : shock by electronic action in the case of aluminum alloys -- 4.4.3. Influence of strain rates on FLCs: static and dynamic formability -- 4.4.4. Metals studied -- 4.4.5. Strain trajectories: change of ?1 under ?2 -- comparison of low and high speeds -- 4.4.6. Comparison of the values for necking Z and fracture R -- 4.4.7. Change in necking -- 4.4.8. Change in fracture -- 4.4.9. Change between necking and fracture -- 4.4.10. Examples in magnetoforming and electro-hydroforming -- Chapter 5. Dynamic Resistance to Mechanical Shocks -- 5.1. Shock stresses -- 5.1.1. Energy aspects: momentum, kinetic energy, impulse -- 5.1.2. Comparison between stress levels in static and dynamic loads -- 5.2. Resilience test -- 5.2.1. Impact by a simple pendulum -- 5.2.2. Stress from polar shock impacts -- 5.2.3. Shock with rebound, coefficient of restitution, energy losses -- 5.2.4. Effect of resistance to movement, speed and stress upon impact -- 5.2.5. Resistant force proportional to the square of the instantaneous speed v2 -- 5.2.6. Elastoplastic resistance to impact and deformation of a solid -- 5.3. Typical loads, stress waves. 327 $a5.3.1. Longitudinal compression waves, mechanical impedance, stress -- 5.3.2. Wave step diagram -- 5.4. Dynamic tests, Hopkinson technique, laws of behavior -- 5.4.1. Principle of dynamic tests with Hopkinson bars -- 5.4.2. Measurement of strain by extensometry gauges -- 5.4.3. Data acquisition -- 5.4.4. Data processing: analysis of dynamic behavior tests of materials -- 5.4.5. Dynamic tension and torsion -- 5.4.6. Dynamic shear of monocrystals and polycrystals -- Appendix A. Primary Times of Mechanisms -- References -- Index -- EULA. 330 $aThis book, 'Rheology, Physical and Mechanical Behavior of Materials 1: Physical Mechanisms of Deformation and Dynamic Behavior' by Maurice Leroy, provides an in-depth analysis of the physical mechanisms underlying the deformation and dynamic behavior of materials. It explores the principles of dynamic plasticity, including dislocations, strain speeds, and microstructural mechanisms. The book also examines the challenges posed by obstacles in material deformation, such as hardening mechanisms and the influence of grain size and vacancies. Aimed at researchers and students in material science and engineering, this work seeks to enhance understanding of material behavior under various conditions.$7Generated by AI. 606 $aRheology$7Generated by AI 606 $aDeformations (Mechanics)$7Generated by AI 615 0$aRheology 615 0$aDeformations (Mechanics) 676 $a620.1123 700 $aLeroy$b Maurice$0160159 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910876738603321 996 $aRheology, Physical and Mechanical Behavior of Materials 1$94198991 997 $aUNINA