Research on Dynamic Response of Q235 Steel Cylindrical Shell Subjected to Lateral Explosion Loading

2013 ◽  
Vol 631-632 ◽  
pp. 864-869
Author(s):  
Fu Yin Gao ◽  
Yuan Long ◽  
Chong Ji ◽  
Chang Xiao Zhang
Keyword(s):  
Cylindrical Shell ◽  
Dynamic Response ◽  
Nonlinear Dynamic ◽  
Computer Code ◽  
Nonlinear Dynamic Response ◽  
Q235 Steel ◽  
Explosion Loading ◽  
Experimental Researches ◽  
Oil Gas ◽  
Steel Cylindrical Shell

Experimental researches were presented on dynamic characteristics of Q235 steel cylindrical shell impacted-explosive laterally by 75g cylindrical TNT dynamite at the center．The dynamic response was obtained under different distances with different setting ways of explosive sources．By means of an explicit nonlinear dynamic finite element computer code LS-DYNA，the nonlinear dynamic response process of cylindrical shell subjected to laterally explosion loading were numerically simulated with ALE coupling method. The numerical simulation results were in good agreement with experimental data. The results provided important reference for the blast-resistant properties analysis and safety assessment of oil-gas pipes safety.

Dynamic Buckling Behaviors of Steel Cylindrical Shell Subjected to Conventional Explosion Impact Loading

2013 ◽  
Vol 800 ◽  
pp. 196-200
Author(s):  
Ji Chong ◽  
Fu Yin Gao ◽  
Xing Hua Li
Keyword(s):  
Numerical Simulation ◽  
Cylindrical Shell ◽  
Cylindrical Shells ◽  
Computer Code ◽  
Dynamic Buckling ◽  
Nonlinear Dynamic Response ◽  
Explosion Loading ◽  
Series Of Experiments ◽  
Steel Cylindrical Shell ◽  
Good Agreement

Experimental and numerical simulation researches were presented on dynamic buckling behaviors of cylindrical shell subjected to explosion loading.An account is given of some principal observations made from a series of experiments in which steel cylindrical shells were subjected to central impact by 200g cylindrical TNT dynamite with different distances.By means of an finite element computer code LS-DYNA,the nonlinear dynamic response process of the cylindrical shells subjected to explosion loading were numerically simulated with Lagrangian-Eulerian coupling method. The numerical simulation results were in good agreement with experimental data. The results provide a reference for the design of explosion-resisting structures.

Nonlinear Dynamic Response of Piezoelectric Cylindrical Shell with Delamination under Hygrothermal Conditions

2012 ◽  
Vol 204-208 ◽  
pp. 4698-4701
Author(s):  
Jin Hua Yang ◽  
De Liang Chen
Keyword(s):  
Cylindrical Shell ◽  
Finite Difference Method ◽  
Dynamic Response ◽  
Nonlinear Dynamic ◽  
Equations Of Motion ◽  
Transverse Motion ◽  
Governing Equations ◽  
Nonlinear Dynamic Response ◽  
The Finite Difference Method ◽  
Delamination Length

Abstract. On the basis of the nonlinear plate-shell and piezoelectric theory, the governing equations of motion for axisymmetrical piezoelectric delaminated cylindrical shell under hygrothermal conditions were derived. The governing equation of transverse motion was modified by contact force and thus the penetration between two delaminated layers could be avoided. The whole problem was resolved by using the finite difference method. In calculation examples, the effects of delamination length, depth and amplitude of load on the nonlinear dynamic response of the axisymmetrical piezoelectric delaminated shell under hygrothermal conditions were discussed in detail.

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