Tension test theoretical strength

For iron, we analyzed uniaxial tensile tests and discussed the anisotropy of the theoretical tensile strength, namely 12.7 GPa for [(X)l] and 27.3 GPa for the [111] direction of loading. This marked anisotropy may be understood in terms of the symmetry-dictated extrema that are present along the deformation paths. Also the isotropic triaxial (hydrostatic) tension was analyzed and theoretical tensile strength of iron for this mode of loading was found to be 27.9 GPa, very close to the value for uniaxial [111] loading. 

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