The buckling assessment package is tailored for buckling strength evaluation of ship and offshore structures.
PULS (Panel Ultimate Limit State) is a computerised buckling code recognised by DNV for strength assessment of stiffened thin plate elements in ship and offshore structures.
The methods used by PULS are based on advanced mathematical models, implemented into easy and intuitive user interfaces. The PULS strength limits are quickly assessed and supported by 3D graphics for improved understanding of the buckling phenomena.
PULS is introduced as a recognised method for assessing buckling and ultimate strength limits of stiffened panels being subjected to the simultaneous action of in-plane loads such as bi-axial compression, tension and shear stresses in combination with lateral pressure. The PULS code is implemented as a part of the ship newbuilding rules from 2004 and it constitutes the basic SiO method for assessing corrosion allowances. The PULS code is also incorporated in the new rules for tanker structure developed by Det Norske Veritas, The American Bureau of Shipping and Lloyd's Register (Joint Tanker Project – JTP).
The PULS code is implemented as part of the Nauticus Hull programs for automatic buckling control. PULS buckling check is available in Section Scantlings and in Automatic Buckling Check for buckling assessment of finite element models created in Nauticus Hull. In addition two different stand alone user interfaces are also available.
PULS XL is fast and convenient to use for automatic buckling control of many real cases.
PULS XL is included in Nauticus Hull Rule Check.PULS Advanced Viewer provides easy access to 3D graphics of different results like buckling modes, redistributed stress patterns etc. This gives a deep understanding of the physical behaviour of non-linear buckling response.
In addition to PULS the package contains programs for buckling strength calcuations according to the DNV Offshore codes:
Buckling strength of stiffened plate panels according to DNV RP-C201
Buckling strength of stiffened and unstiffened cylindrical shells according to DNV RP-C202