The imperfection sensitivity of axially compressed steel conical shells – Lower bound curve

2020 ◽  
pp. 107323
Author(s):  
F.M. Mahidan ◽  
O. Ifayefunmi
Keyword(s):  
Lower Bound ◽  
Imperfection Sensitivity ◽  
Conical Shells

Imperfection Sensitivity of Conical Shells

AIAA Journal ◽  
2003 ◽  
Vol 41 (3) ◽  
pp. 517-524 ◽  
Author(s):  
Yiska Goldfeld ◽  
Izhak Sheinman ◽  
Menahem Baruch
Keyword(s):  
Imperfection Sensitivity ◽  
Conical Shells

Free vibration of pretwisted, cantilevered composite shallow conical shells

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 327-333
Author(s):  
C. W. Lim ◽  
S. Kitipornchai ◽  
K. M. Liew
Keyword(s):  
Free Vibration ◽  
Conical Shells

EFFICIENT METHOD OF CALCULATING LAYERED CONICAL SHELLS WITH LAGRANGE MULTIGRID ELEMENTS USE

2018 ◽  
Vol 19 (3) ◽  
pp. 423-431
Author(s):  
G. I. Rastorguev ◽  
◽  
A. N. Grishanov ◽  
А. D. Matveev ◽  
◽  
...  
Keyword(s):  
Efficient Method ◽  
Conical Shells

The least distance between extremums and minimal period of solutions to autonomous vector differential equations

2019 ◽  
Vol 485 (2) ◽  
pp. 142-144
Author(s):  
A. A. Zevin
Keyword(s):  
Lower Bound ◽  
Differential Equations ◽  
Periodic Solutions ◽  
Lipschitz Constant ◽  
Minimal Period ◽  
Arbitrary Vector ◽  
Vector Norm ◽  
Sharp Lower Bound

Solutions x(t) of the Lipschitz equation x = f(x) with an arbitrary vector norm are considered. It is proved that the sharp lower bound for the distances between successive extremums of xk(t) equals π/L where L is the Lipschitz constant. For non-constant periodic solutions, the lower bound for the periods is 2π/L. These estimates are achieved for norms that are invariant with respect to permutation of the indices.

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