Load-carrying capacity of cylindrical shells of composite materials under compressive loads

1987 ◽  
Vol 19 (3) ◽  
pp. 409-415
Author(s):  
N. P. Semenyuk
Keyword(s):  
Composite Materials ◽  
Carrying Capacity ◽  
Cylindrical Shells ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
Compressive Loads

Load carrying capacity of cylindrical shells

2020 ◽  
Vol 2020 (21) ◽  
pp. 146-153
Author(s):  
Anatolii Dekhtyar ◽  
◽  
Oleksandr Babkov ◽  
Keyword(s):  
Carrying Capacity ◽  
Cylindrical Shells ◽  
Load Carrying Capacity ◽  
Load Carrying

The effect of different retrofitting techniques on the axial load carrying capacity of damaged cylindrical shells

Structures ◽  
2021 ◽  
Vol 31 ◽  
pp. 590-601
Author(s):  
Hamed Rahman Shokrgozar ◽  
Vahid Akrami ◽  
Tayebeh Jafari Ma'af ◽  
Naseraldin Shahbazi
Keyword(s):  
Carrying Capacity ◽  
Axial Load ◽  
Cylindrical Shells ◽  
Load Carrying Capacity ◽  
Load Carrying

scholarly journals Balanced and unbalanced welds for angle compression members

1994 ◽  
Vol 21 (3) ◽  
pp. 396-403 ◽  
Author(s):  
Murray C. Temple ◽  
Sherief S. S. Sakla
Keyword(s):  
Key Words ◽  
Carrying Capacity ◽  
Compressive Load ◽  
Tensile Load ◽  
Effective Length ◽  
Load Carrying Capacity ◽  
Compression Members ◽  
Load Carrying ◽  
Compressive Loads ◽  
Compressive Resistance

Angles used as web members in trusses are often welded to the chords with unbalanced welds. This is necessary because of space limitations. It is not known what effect such a weld has on the compressive load carrying capacity of an angle. The standards and specification examined allow an unbalanced weld for an angle. The justification for using such a weld is based on research conducted on angles in tension. For these members, it was concluded that an unbalanced weld does not affect the tensile load carrying capacity of the angle. Research results for angles with different weld patterns subjected to compressive loads are not available in the literature. Eighteen tests were conducted on angle compression members with various weld patterns. It was determined that an unbalanced weld is detrimental to the load carrying capacity of an intermediate length angle but is beneficial for a slender angle. Key words: angles, column (structural), compressive resistance, effective length, standards, welds.

Perturbation Solutions for the Buckling Problems of Axially Compressed Thin Cylindrical Shells of Infinite or Finite Length

1968 ◽  
Vol 35 (4) ◽  
pp. 754-762 ◽  
Author(s):  
C. L. Dym ◽  
N. J. Hoff
Keyword(s):  
Finite Length ◽  
Carrying Capacity ◽  
Cylindrical Shells ◽  
Linear Equations ◽  
Perturbation Expansion ◽  
Maximum Load ◽  
Accurate Solution ◽  
Load Carrying Capacity ◽  
Load Carrying ◽  
Infinite Set

A study is presented of the effect of initial deviations on the load carrying capacity of thin circular cylindrical shells under uniform axial compression. A perturbation expansion is used to reduce the nonlinear equations of von Karman and Donnell to an infinite set of linear equations, of which only the first few need be solved to obtain a reasonably accurate solution. The results for both infinite shells and shells of finite length indicate that a small imperfection can sharply reduce the maximum load that a thin-walled cylinder will sustain. In addition, for a particular set of boundary conditions, it is shown that the effect of the length of a finite shell is small as far as the load carrying capacity is concerned, but significant when the number of waves around the circumference has to be determined. A further result of the study is that axisymmetric initial deviations reduce the load carrying capacity only slightly more than deviations characterized by a product of trigonometric functions of the axial and circumferential coordinates if the wave lengths are properly chosen.

Stability and load-carrying capacity of longitudinally divided cylindrical shells under central and off-center compression

1981 ◽  
Vol 13 (9) ◽  
pp. 1125-1129
Author(s):  
D. E. Lipovskii ◽  
V. A. Nazarov ◽  
V. V. Sutulov ◽  
V. I. Shapko
Keyword(s):  
Carrying Capacity ◽  
Cylindrical Shells ◽  
Load Carrying Capacity ◽  
Load Carrying

Influence of previous dynamic loading on the load-carrying capacity of cylindrical shells

1973 ◽  
Vol 9 (3) ◽  
pp. 321-323
Author(s):  
L. V. Andreev ◽  
I. N. Krushel'nitskii ◽  
Yu. E. Privarnikov ◽  
E. F. Prokopalo
Keyword(s):  
Dynamic Loading ◽  
Carrying Capacity ◽  
Cylindrical Shells ◽  
Load Carrying Capacity ◽  
Load Carrying

scholarly journals Low Velocity Impact Response of the Filament Wound Anisogrid CFRP Cylindrical Shells

2021 ◽  
Author(s):  
Suresh Paramasivam ◽  
Anish Jafrin Thilak Johnson
Keyword(s):  
Finite Element ◽  
Carrying Capacity ◽  
Cylindrical Shells ◽  
Finite Element Simulations ◽  
Shell Structures ◽  
Low Velocity Impact ◽  
Load Carrying Capacity ◽  
Low Velocity ◽  
Velocity Impact ◽  
Load Carrying

Abstract This work presents the experimental and finite element simulations to investigate the behavior of both unstiffened and anisogrid composite lattice cylindrical shells under low velocity axial impact. Impact damage has been an epidemic problem for composite structures. Even subjected to a low velocity impact, composite may sacrifice its load carrying capacity considerably due to various modes of failure. The test coupons fabricated as per American Society for Testing of Materials (ASTM) standards were put through Infrared (IR) thermography to find the imperfections during fabrication. The test coupons without defects were only taken into account for material characterization. Finite Element simulations are carried out on both the unstiffened and anisogrid shell structures using LS-DYNA® for a series of low velocity impacts. Also these shell structures were subjected to impact load experimentally for the validation of the results. The results of these studies indicate that the anisogrid model presented in this work possess greater load carrying capacity than unstiffened shell under dynamic loading conditions, also the weight of the structure has been drastically reduced.

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