Is there any method to determine elastic modulus based on Engg.stress-strain curve without using extensometer.
Measurement of the E-modulus without the use of the extensometer is only possible by measuring the force and deflection on the circular plate of this material
Use strain gages long one on four sides, or use nondestructive testing (Impact Echo) to find the dynamics modmulish then use the static elevator modlua to be 0.8 of it, or maybe use fiber optic sensors...just some thoughts 😊
I support the answer of Mr. Hossein Mohammadi . I would also suggest bending test. This is much easier without the costly equipment.
A simple test is to mesure the elastic deflection of a center-loaded simple beam with f= PL3/48EI.
f elastic deflexion in mm in the middle of the support (loading point)
P load in N in the middle of the supports
L length beetween supports in mm
E in Mpa (or N/mm2)
I area moment of inirtia of cross section in mm4
An other way is to use PIV.
You can replace the extensometer by a CCD camera, if you have the equipment. You get the strain value and you can correlate it to the string to determine the young modulus
I found Hossein Mohammadi answer is acceptable as a non destructive test for the modulus determination.
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