Penetration Studies of Ice with Application to Arctic and Subarctic Warfare

• Main Authors: Ross, Bernard, Hanagud, Sathya, Sidhu, Gursharan
• Other Authors: STANFORD RESEARCH INST MENLO PARK CA NAVAL WARFARE RESEARCH CENTER
• Format: Text
• Language: English
• Published: 1971
• Subjects: Undersea and Antisubmarine Warfare; Ammunition and Explosives; *ARCTIC REGIONS; *ANTISUBMARINE WARFARE; *ANTISUBMARINE AMMUNITION; *ICE; FRACTURE(MECHANICS); SNOW; SHEAR STRESSES; DEFORMATION; PROJECTILES; MATHEMATICAL MODELS; COMPUTER PROGRAMS; PENETRATION; Arctic; Ice Sheet; Sea ice; Subarctic
• Online Access: http://www.dtic.mil/docs/citations/AD0736633; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0736633

Theoretical studies concerning the mechanics of penetration and perforation of a snow covered Arctic sea ice sheet subjected to projectile impact were performed. Penetration problems were treated by a deep penetration theory based on dynamic spherical cavity expansion analysis. In particular, finite compactibility and permanent deformation of both the snow and sea ice target materials were taken into account by assuming a locking approximation for behavior under hydrostatic stress, and response as an elastic-plastic, linear strain hardening solid under shear stress. See also report dated Nov 1965, AD630122.