Find Maximum Elongation After Fracture in mm

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SUMMARY

To find the maximum elongation after fracture in millimeters, one must use the elongation formula, which involves measuring the distance between the marks of the original gauge length after aligning the fractured pieces. This method accounts for total permanent elongation but does not include the elastic component at the time of failure. The elastic component can be calculated by dividing the yield strength by the elastic (Young's) modulus.

PREREQUISITES
  • Understanding of elongation formulas in material science
  • Knowledge of yield strength and Young's modulus
  • Familiarity with fracture mechanics
  • Ability to perform measurements accurately
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  • Research the specific elongation formula used in material testing
  • Study the relationship between yield strength and Young's modulus
  • Explore methods for measuring fracture surfaces accurately
  • Investigate the implications of elastic versus plastic deformation in materials
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Material scientists, mechanical engineers, and students studying fracture mechanics or materials testing will benefit from this discussion.

teng125
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how to find the maximum elongation after the fracture in mm??any formula??


pls help
thanx
 
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One uses the same method/formula as elongation.

When a piece fractures, the load is removed, so the elastic strain is mostly recovered.

One puts the two broken parts together, matching the fracture surface, and measures the length between the marks of the original gage length. Then use the elongation formula. This however gives the total permanent elongation which does not include the elastic component at time of failure.

The elastic component of the strain (elongation) is approximately the yield strength divided by the elastic (Young's) modulus.
 

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