|Table of Contents|

Theoretical Analysis for Rigid Projectiles Normal Penetration into Granites

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2008年06期
Page:
724-728
Research Field:
Publishing date:

Info

Title:
Theoretical Analysis for Rigid Projectiles Normal Penetration into Granites
Author(s):
HUANG Min-rongGAO Yong-hongGU Xiao-hui
School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
rigid projectiles normal penetration granites spherical cavity expansion dynamic compressive strength
PACS:
O385
DOI:
-
Abstract:
The theoretical model based on the spherical dynamic cavity expansion theory is used to match the requirement of research on the penetration mechanism of granites.According to the characteristics of high compressive strength and viscosity of granites,the dynamic compressive strength variable of comminuted zone is introduced and the theoretical pressure model of the spherical cavity expansion is ameliorated.The influence of kinetic friction force on the penetration depth into granites is analyzed.The equations of resistance and depth for normal penetration into granites by rigid projectiles are presented.The theoretical results are in agreement with experimental results and the model is proved to be validated.

References:

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Last Update: 2008-12-30