ScholarMatic: Explanation & Answer
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Show transcribed image text Consider the two positive edge dislocations shown. Assume that dislocation 1 is fixed in space. The symbol "b" in the figure represents the magnitude of Burgers vector (taken as 0.2 nm in this problem. x2 2 20 b 10 b (a) Calculate the stress components 1 and 2 induced by dislocation 1 at the location of dislocation 2. Take the shear modulus of material as 20 GPa and Poisson's ratio as 0.3 (b) Use the relation F, b to obtain the force (per unit length) acting on dislocation 2. Answer: (a) σ11–236 MPa, σ1,–109 MPa (b)-0.02 18 N/rn
Consider the two positive edge dislocations shown. Assume that dislocation 1 is fixed in space. The symbol "b" in the figure represents the magnitude of Burgers vector (taken as 0.2 nm in this problem. x2 2 20 b 10 b (a) Calculate the stress components 1 and 2 induced by dislocation 1 at the location of dislocation 2. Take the shear modulus of material as 20 GPa and Poisson's ratio as 0.3 (b) Use the relation F, b to obtain the force (per unit length) acting on dislocation 2. Answer: (a) σ11–236 MPa, σ1,–109 MPa (b)-0.02 18 N/rn
ScholarMatic: Explanation & Answer
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