Stress Distribution in a Spanner or Wrench - Essay Example

In this case, two designs are explored, and their stress distribution, associated with the design is analyzed. A spanner or wrench is a hand tool used to provide grip and mechanical advantage in applying torque to turn objects such as nuts and bolts. The figures below show the designs and the explanations thereunder. Original design stress distribution Figure 1 (a) Figure 1 (b)In the original design shown in the above diagrams, the design is shown in Figure 1 (a), and the stress distribution in Figure 1 (b).

Stress is concentrated around the grip edges and at the ring end of the wrench. There is also the concentration of von Misses stresses along the axis of the wrench. From Figure 1 (b), the red color shows regions that are heavily stressed whereas the blue color indicates regions with minimal stress. From the summary at the top left the same figure indicates the extent to which the von misses stresses are distributed within the wrench body. Modified design stress distribution Figure 2 (a) Figure 2 (b)In the modified design, shown in the diagram above, the overstressing of the same region is eliminated.

Stress is redistributed and is only excess at the collar of the wrench. In this design, stress has been managed well and is uniform almost throughout the entire figure. The contours show the von Misses stress distribution. It is therefore true that the shape of the object affects a body’s stress distribution and the above examples dictate this.