The motivation behind the question is that only young's modulus is available in tension for most of the materials, and compressive modulus is assumed equal to tensile modulus. There is a need to justify if the above assumption is correct or not.
Antonio Carvalho
The justification is in the shape of the potential energy curve of atoms in close proximity. For small deformations, the curve is nearly symmetric in both tension and compression.
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Vishwas Patil
Is the potential energy curve of atoms same for metals, plastics and composites?
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Antonio Carvalho
Any atom, regardless of location in The periodic Table. Therefore, valid for all solid materials.
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