scholarly journals A discussion on the mechanism of improvement of a sandy ground by cylindrical cavity expansion through soil-water coupled analysis.

2001 ◽  
pp. 111-122
Author(s):  
Toshihiro NODA ◽  
Toshihiro TAKAINE ◽  
Kenji TAKAGI ◽  
Mitsuo NOZU
Keyword(s):  
Soil Water ◽  
Cylindrical Cavity ◽  
Cavity Expansion ◽  
Coupled Analysis ◽  
Cylindrical Cavity Expansion ◽  
Sandy Ground

scholarly journals A Soil-Water Coupled Analysis on the Effect of Improvement of a Loose Sandy Ground by Cylindrical Cavity Expansion

2001 ◽  
Vol 41 (4) ◽  
pp. 113-123 ◽  
Author(s):  
Toshihiro Noda ◽  
Masaki Nakano ◽  
Kazunori Mizuno ◽  
Hidekatsu Takeuchi
Keyword(s):  
Soil Water ◽  
Cylindrical Cavity ◽  
Cavity Expansion ◽  
Coupled Analysis ◽  
Cylindrical Cavity Expansion ◽  
Sandy Ground

Dynamic finite cylindrical cavity-expansion models for cellular steel tube confined concrete targets normally impacted by rigid sharp-nosed projectiles

2021 ◽  
pp. 204141962110272
Author(s):  
Chaomei Meng ◽  
Dianyi Song ◽  
Qinghua Tan ◽  
Zhigang Jiang ◽  
Liangcai Cai ◽  
...  
Keyword(s):  
Cylindrical Cavity ◽  
Approximate Model ◽  
Steel Tube ◽  
Confinement Effect ◽  
Confined Concrete ◽  
Cavity Expansion ◽  
Depth Of Penetration ◽  
Cylindrical Cavity Expansion ◽  
Infinite Cylindrical Shell ◽  
Response Modes

Cellular steel-tube-confined concrete (CSTCC) targets show improved anti-penetration performance over single-cell STCC targets due to the confinement effect of surrounding cells on the impacted cell. Dynamic finite cylindrical cavity-expansion (FCCE) models including radial confinement effect were developed to predict the depth of penetration (DOP) for CSTCC targets normally penetrated by rigid sharp-nosed projectiles, and stiffness of radial confinement was achieved with the elastic solution of infinite cylindrical shell in Winkler medium. Steady responses of dynamic FCCE models were obtained on the assumption of incompressibility of concrete, failure of comminuted zone with Heok–Brown criterion and two possible response modes of the confined concrete in the impacted cell. Furthermore, a DOP model for CSTCC targets normally impacted by rigid projectiles was also proposed on the basis of the dynamic FCCE approximate model. Lastly, relevant penetration tests of CSTCC targets normally penetrated by 12.7 mm armor piecing projectile (APP) were taken as examples to validate the dynamic FCCE models and the corresponding DOP model. The results show that the DOP results based on dynamic FCCE model agree well with those of the CSTCC targets normally penetrated by rigid conical or other sharp-nosed projectiles.

A Soil-Water Coupled Analysis of Sand Compaction with Static Cavity Expansion

Geomechanics ◽  
2005 ◽  
Author(s):  
Toshihiro Noda ◽  
Eiji Yamada ◽  
Shoutarou Yamada ◽  
Akira Asaoka
Keyword(s):  
Soil Water ◽  
Cavity Expansion ◽  
Coupled Analysis
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