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Stress Isobars are-
  • a)
    Points of equal vertical and horizontal stresses
  • b)
    Lines joining of the points of equal horizontal stresses
  • c)
    Lines joining the points of equal vertical stresses
  • d)
    Points of equal resultant stresses
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Stress Isobars are-a)Points of equal vertical and horizontal stresses...
An isobar or pressure bulb is a stress contour or a line that connects all points below the ground surface at which the vertical pressure is the same.
An isobar is a curved spatial surface and resembles a bulb in shape because the vertical pressure at all points in a horizontal plane at equal radial distances from the load is the same.
Thus, the stress isobar is also called the ‘bulb of pressure’ or simply the ‘pressure bulb.’ The vertical pressure at each point on the pressure bulb is the same.
Hence the correct answer is option A.
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Most Upvoted Answer
Stress Isobars are-a)Points of equal vertical and horizontal stresses...
Stress Isobars:
Isobars are lines or curves that connect points of equal value on a given map or diagram. In the case of stress isobars, they represent lines connecting points with equal stress values.

Explanation:
Stress isobars are used to represent the distribution of stress in a material or structure. They are particularly useful in analyzing the stress patterns in soil or rock masses, where the stress distribution can vary significantly.

Points of equal vertical and horizontal stresses:
Stress isobars are points of equal vertical and horizontal stresses. This means that at any point along a stress isobar, the vertical and horizontal stress components are equal. This is represented by the isobar being a line of constant stress value.

Lines joining the points of equal horizontal stresses:
Stress isobars do not represent lines joining points of equal horizontal stresses. While the stress isobars do connect points with equal stress values, these stress values can be a combination of both vertical and horizontal stresses.

Lines joining the points of equal vertical stresses:
Similarly, stress isobars do not represent lines joining points of equal vertical stresses. They represent lines connecting points with equal combined vertical and horizontal stresses.

Points of equal resultant stresses:
Stress isobars also do not represent points of equal resultant stresses. Resultant stress is the combined effect of both vertical and horizontal stresses at a point. While stress isobars represent points with equal stress values, these stress values may not necessarily represent the resultant stress at that point.

In conclusion, stress isobars are points of equal vertical and horizontal stresses, and not lines joining points of equal horizontal or vertical stresses. They provide a useful visual representation of stress distribution in materials or structures and aid in the analysis of stress patterns.
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Stress Isobars are-a)Points of equal vertical and horizontal stressesb)Lines joining of the points of equal horizontal stressesc)Lines joining the points of equal vertical stressesd)Points of equal resultant stressesCorrect answer is option 'A'. Can you explain this answer?
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