**Question 7: Identify Strains around an Edge Dislocation**For an edge dislocation, select the type of strains present around the dislocation:- ○ All of the Choices Listed- ○ Tensile- ○ Compressive- ○ ShearThis question focuses on understanding the nature of strains associated with edge dislocations in materials science. Edge dislocations are characterized by an extra half-plane of atoms which introduces different types of strain fields around the dislocation line. Consider the mechanics involved and choose the appropriate strain(s). The image illustrates the concepts of Edge Dislocation and Screw Dislocation in materials science. Below are explanations of the diagrams depicted:1. **Edge Dislocation:** - The diagram shows a block with an extra half-plane of atoms inserted, which ends at the dislocation line. This creates a distortion in the lattice structure. - Arrows indicate the direction of the applied stress (τ). There is a shear stress applied parallel to the dislocation line. - The right side of the diagram demonstrates the resulting effect of this dislocation, where a vertical step appears on the surface of the material. The dislocation line is perpendicular to the direction of applied stress.2. **Screw Dislocation:** - This diagram represents a block with a helical pathway of atomic planes around the dislocation line. The lattice structure is twisted around this line. - As with the edge dislocation, arrows are used to demonstrate the application of shear stress (τ) on the material. The stress is applied parallel to the dislocation line. - The outcome shown on the right features a material with a horizontal shift on the surface, where the dislocation line is parallel to the direction of stress, causing a spiral ramp effect.The diagrams are used to contrast the differences in atomic arrangements and stress effects between edge and screw dislocations in crystalline structures.

according to the given details in the question. solution is given below

Answered: 7) For an Edge Dislocation, identify:…

7) For an Edge Dislocation, identify: Strains around dislocation O All of the Choices Listed O Tensile Compressive O Shear

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

Crystalline Imperfections

The crystalline imperfections are described as the geometrical defects in the crystal due to incorrect arrangement of atoms, impurity, vacancy, and many more. It is not possible to achieve a perfect or ideal crystal, practically.

Question

The image illustrates the concepts of Edge Dislocation and Screw Dislocation in materials science. Below are explanations of the diagrams depicted:

1. **Edge Dislocation:**
- The diagram shows a block with an extra half-plane of atoms inserted, which ends at the dislocation line. This creates a distortion in the lattice structure.
- Arrows indicate the direction of the applied stress (τ). There is a shear stress applied parallel to the dislocation line.
- The right side of the diagram demonstrates the resulting effect of this dislocation, where a vertical step appears on the surface of the material. The dislocation line is perpendicular to the direction of applied stress.

2. **Screw Dislocation:**
- This diagram represents a block with a helical pathway of atomic planes around the dislocation line. The lattice structure is twisted around this line.
- As with the edge dislocation, arrows are used to demonstrate the application of shear stress (τ) on the material. The stress is applied parallel to the dislocation line.
- The outcome shown on the right features a material with a horizontal shift on the surface, where the dislocation line is parallel to the direction of stress, causing a spiral ramp effect.

The diagrams are used to contrast the differences in atomic arrangements and stress effects between edge and screw dislocations in crystalline structures.

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