Formula Used:
From: | To: |
Elongation of a conical bar due to self weight refers to the extension or deformation that occurs in a tapered bar under its own weight. This is an important consideration in structural engineering and material science when designing components that must support their own weight.
The calculator uses the formula:
Where:
Explanation: The formula calculates the elongation of a conical bar under its own weight, taking into account the material's specific weight, the length of the bar, and the material's Young's modulus which represents its stiffness.
Details: Calculating elongation due to self weight is crucial for ensuring structural integrity in various engineering applications, particularly in construction, aerospace, and mechanical design where components must withstand their own weight without excessive deformation.
Tips: Enter specific weight in N/m³, tapered bar length in meters, and Young's modulus in Pascals. All values must be positive numbers greater than zero.
Q1: What is specific weight?
A: Specific weight is the weight per unit volume of a material, typically measured in N/m³ or lb/ft³.
Q2: How does Young's modulus affect elongation?
A: Young's modulus represents the stiffness of a material. Higher Young's modulus values result in less elongation under the same load, as stiffer materials deform less.
Q3: Is this formula specific to conical bars?
A: Yes, this particular formula is specifically derived for tapered (conical) bars under self-weight loading conditions.
Q4: What are typical Young's modulus values for common materials?
A: Steel: ~200 GPa, Aluminum: ~70 GPa, Concrete: ~30 GPa, Wood: ~10 GPa (varies by species and direction).
Q5: How does bar length affect elongation?
A: Elongation increases with the square of the bar length, meaning longer bars experience significantly more elongation under self weight than shorter bars.