Buckling behaviour of underwater vessels by experimental, numerical and analytical approaches

Buckling behaviour of underwater vessels by experimental, numerical and analytical approaches

Critical Buckling Pressure

FEA

Reduced Stiffness Matrix

Filament winding

This paper reports the buckling behaviour of glass/vinylester polymer composite filament wound shells of underwater vessels. The shells were tested for buckling under hydrostatic loading and microstrains as a function of applied hydrostatic pressure were measured. Numerical analysis was performed for critical buckling pressure based on Block Lancoz buckling analysis and for Von-Mises stresses and strains based on static analysis using ANSYS. Von-Mises stresses corresponding to hydrostatic pressures were computed analytically by Reduced Stiffness Matrix method. The numerical results of critical buckling pressure for 10 mm thick vessels showed 7.12 % deviation from the experimental results. The microstrains predicted by FEA were in good agreement with the experimental strains. Von-Mises stresses predicted by FEA agreed well with the analytical computations.DOI: http://dx.doi.org/10.3329/jname.v11i1.16087

Govindaraj, Moorthy

Murthy, HN Narasimha

Patil, Shivkumar

K., Sudarsan

O.R, Nandagopan

K., Ajith Kumar

Munishaiah, Krishna

Journal of Naval Architecture and Marine Engineering; Vol. 11 No. 1 (2014); 15-28

2070-8998

1813-8535

Association of Naval Architects and Marine Engineers

2014-06-10

application/pdf

eng

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

Quasi-Experimental