Geometrically Necessary Dislocations in Materials

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Related lectures (32)

Plastic Deformation: Introduction to the Dislocation Model

Covers plastic deformation, dislocation model, stages, shear stress, distortion, dislocation loops, strain hardening, and crystal growth.

Kinetics of Dislocations

Explores the kinetics of dislocations, stress fields, and interactions with point defects and extended defects.

Materials: from Chemistry to Properties

Explores materials' behavior under stress, covering plastic deformation, elasticity, and strengthening mechanisms.

Deformation and Strain Tensors

Explores deformation and strain tensors, Lagrange representation, elasticity theory, and the divergence theorem.

Materials Properties: Ductility, Hardness, Toughness

Explores materials' ductility, hardness, and toughness, covering dislocations, hardening mechanisms, and polymer behavior.

Deformation and Dislocations Log in to Mediaspace to watch this video

Explores the sliding of dislocations in single crystals, plastic deformation, and stress fields induced by dislocations.

Lamination: Deformation, Ductility, and Dislocations Log in to Mediaspace to watch this video

Explores lamination, ductility, plastic deformation, and dislocations in materials, emphasizing the effects of strain rate and temperature.

Dislocations and Deformation Log in to Mediaspace to watch this video

Explores dislocations in crystals, deformation mechanisms, and the effects of obstacles on dislocation movement.

Plastic Deformation and Work Hardening Log in to Mediaspace to watch this video

Explores plastic deformation, work hardening, and strategies to reduce hardening in materials.

Plasticity Physics of Single Crystals Log in to Mediaspace to watch this video

Explores plasticity in single crystals, including mechanisms of plastic flow and strain hardening, with a focus on dislocation behavior and geometrically necessary dislocations.

Deformation and Rupture of Materials Log in to Mediaspace to watch this video

Explores the deformation and rupture of materials, including dislocation density, plastic deformation, and stress-strain relationships.

Dislocation Mechanics Log in to Mediaspace to watch this video

Explores the mechanics of dislocations in materials, including their movement, interaction, and impact on material properties.

Stiffness vs Strength: Deformation and Load Log in to Mediaspace to watch this video

Covers stiffness, strength, strain, stress, and strain measurement in structural mechanics.

Material Response: FCC-BCC-HCP Log in to Mediaspace to watch this video

Explores material response to impact and strain hardening, including adiabatic shear bands and their applications.

Plasticity and Deformation in Metals Log in to Mediaspace to watch this video

Explores plasticity, work hardening, critical stress states, and deviatoric stresses in metals.

Empirical Constitutive Relations Log in to Mediaspace to watch this video

Explores empirical constitutive relations, dislocation movement, and thermally activated motion in material science.

Mechanical Properties & Strengthening Mechanisms Log in to Mediaspace to watch this video

Explores mechanical properties, plastic deformation, dislocations, strengthening mechanisms, and high temperature plasticity in alloys.

Structural Mechanics: Beam Bending and Boundary Conditions Log in to Mediaspace to watch this video

Explores the moment-curvature relation for beams, emphasizing stress distribution and typical boundary conditions.

Generalized Hooke Law: Deformation and Stiffness Matrices Log in to Mediaspace to watch this video

Explores the Generalized Hooke Law, stiffness matrices, and deformation effects in materials.

Mechanical Behavior of Materials: Deformation & Fatigue Log in to Mediaspace to watch this video

Explores deformation mechanisms, cyclic loading, and fatigue phenomena in materials.

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