Whether martensitic phase transformation possible in other alloys and ceramic or not needs to be explained. Concept Introduction: Martensitic transformation is the transformation which a diffusionless reaction and takes place in a military manner. The Trans takes place due to the movement of the atom and the atom changes their position in a co-ordinated way. Martensite is formed in carbon steel by quenching. The martensite reaction begins during cooling and parent martensite becomes unstable.

Question

4. Figure 3 shows a crank loaded by a force F = 1000 N and Mx = 40 Nm. a. Draw a free-body diagram of arm 2 showing the values of all forces, moments, and torques that act due to force F. Label the directions of the coordinate axes on this diagram. b. Draw a free-body diagram of arm 2 showing the values of all forces, moments, and torques that act due to moment Mr. Label the directions of the coordinate axes on this diagram. Draw a free body diagram of the wall plane showing all the forces, torques, and moments acting there. d. Locate a stress element on the top surface of the shaft at A and calculate all the stress components that act upon this element. e. Determine the principal stresses and maximum shear stresses at this point at A.

Answer 1

Question

Chapter 12, Problem 12.100P

Interpretation Introduction

Interpretation:

Whether martensitic phase transformation possible in other alloys and ceramic or not needs to be explained.

Concept Introduction:

Martensitic transformation is the transformation which a diffusionless reaction and takes place in a military manner. The Trans takes place due to the movement of the atom and the atom changes their position in a co-ordinated way. Martensite is formed in carbon steel by quenching. The martensite reaction begins during cooling and parent martensite becomes unstable.

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4. Figure 3 shows a crank loaded by a force F = 1000 N and Mx = 40 Nm. a. Draw a free-body diagram of arm 2 showing the values of all forces, moments, and torques that act due to force F. Label the directions of the coordinate axes on this diagram. b. Draw a free-body diagram of arm 2 showing the values of all forces, moments, and torques that act due to moment Mr. Label the directions of the coordinate axes on this diagram. Draw a free body diagram of the wall plane showing all the forces, torques, and moments acting there. d. Locate a stress element on the top surface of the shaft at A and calculate all the stress components that act upon this element. e. Determine the principal stresses and maximum shear stresses at this point at A.

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