Find Maximum Elongation After Fracture in mm

[teng125]

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


pls help
thanx

 

[Astronuc]

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.

 

[piercas]

To find the maximum elongation after fracture in mm, you will need to use the formula for strain, which is change in length over original length (ε = ΔL/L). The maximum elongation after fracture can be calculated by finding the change in length at the point of fracture and dividing it by the original length. This will give you the strain at the point of fracture, which can then be converted to elongation by multiplying it by the original length.

Once you have the elongation value, you can convert it to mm by multiplying it by 1000 (as 1 mm = 0.001 m). This will give you the maximum elongation after fracture in mm.

It is important to note that the value obtained may vary depending on the material and conditions of the fracture. It is also recommended to consult with a materials engineer or refer to standard testing procedures to ensure accurate and reliable results.