Deformation of Textured Steels.
Final rept. 15 Aug 77-15 Aug 78,
ROCKWELL INTERNATIONAL THOUSAND OAKS CALIF SCIENCE CENTER
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The present research program was designed to investigate the influence of crystallographic texture on the mechanical strength of steel plates subjected to various loading conditions including ballistic impact. The steels of interest are 5 Ni martenistic steels containing varying intensities of 111 and 112 textures, thermomechanically processed by Hu et al 1. The investigation includes calculations of theoretical strength for shear and through thickness compression modes for the various ideal textures by computation of the appropriate Taylor factors. The experimental part of the program involved shear testing samples taken from various angles in the plates, as well as conducting through-thickness compression tests. Both the theoretical and experimental work indicate that the through-thickness compression resistance increases the increasing 111 and 112 texture intensity, and the compression resistance appears to be the dominant factor in controlling ballistic perforation resistance. An analysis of failure modes for plates of different ideal textures has also been made. Author
- Metallurgy and Metallography
- Structural Engineering and Building Technology