Stability improvement of thin isotropic cylindrical shells with partially filled soft elastic core subjected to external pressure

Dash, Aruntapan; Ramachandran, V.; Prasad, M S R; Sikarwar, Rahul S.

doi:10.1016/j.tws.2015.09.028

Cited by 3 publications

(1 citation statement)

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“…The maximum radial deflection of the tube is tracked and stored as a function of pressure load till the point of instability. More details about the nonlinear FEA procedure and steps are reported in earlier work of the authors 8,9 . As an engineering solution composite rocket motor casings (CRMC) filled with filler such as solid propellant are not allowed to take load beyond a point where initiation of buckling takes place.…”

Section: Finite Element Analysis Using Ansys Softwarementioning

confidence: 99%

Effect of Helical Winding Angle on External Pressure based Buckling of Partially Filled Thin Composite Cylindrical Shells

2019

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Effect of helical winding angle on buckling load of thin composite tubes is investigated in this work. Experiments are conducted on both empty and partially filled S2 glass tubes to estimate contribution of strength to the tubes by the filler material. Chosen filler material mechanically simulates behavior of typical solid propellant used in aerospace application. FE analysis with non-linear effect correlates well with the experimental data. Three series of experiments are conducted to quantify effect of helical winding angle and increase in volumetric loading fraction(VLF). Results confirm appreciable improvement in strength of filled tubes for higher VLF. For the chosen pattern of winding, lower winding angle provides more strength to the tubes against external pressure buckling.

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Section: Finite Element Analysis Using Ansys Softwarementioning

confidence: 99%