However, this strain maintained its clear relationship with the geometry of the cylindrical specimen, that is, it was associated with the external and internal radii; The normal stress σz at the crack front showed a trend with a positive slope in the central band, a characteristic parameter of cylindrical specimens.
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Numerical Study of the Plastic Zone at the Crack Front in Cylindrical Aluminum Specimens Subjected to Tensile Loads.
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The sentences
It maintained an increasing trend towards the external radius of the cylindrical specimen; The centroid of the plastic strain presented in the flat area of the crack front was not located in the central part, as in flat specimens.
The centroid showed a clear trend towards the external radius; A clear geometric trend of the plastic strain presented in the flat zone of the crack front was found when evaluating qualitatively with non-normalized thickness parameters under the same load regime; The evolution of the plastic strain’s size in the crack front’s flat area depended largely on the thickness and the load applied for the analysis.