Analysis of Slot Orientation in Shear-Compression Specimen (SCS)

作者：Vural M^*; Molinari A; Bhattacharyya N

来源：Experimental Mechanics, 2011, 51(3): 263-273.

DOI：10.1007/s11340-010-9363-1

• Shear
• Compression
• Large strain
• Plastic analysis
• DIC

This paper presents an analytical treatment as well as experimental measurement of the plastic deformation field in shear-compression specimen (SCS) by using digital image processing (DIC) technique. The results provide a set of useful expressions that relates externally applied displacement and load quantities to the equivalent stress and equivalent plastic strain within the gage section. Based on the analysis, we propose modifying the slot angle of SCS geometry from its original value of 45 degrees to 35.26 degrees in order to enhance the uniformity of stress and strain fields in gage section. It is shown by analysis that this enhancement is essentially because the compatibility and boundary conditions that yield a homogeneous deformation field is naturally satisfied for the particular slot orientation of theta = 35.26 degrees. This conclusion is also supported by experimental evidence that comparatively shows the edge effects for varying slot angles.

• 出版日期2011-3