SDC Verifier 4.0 preview: Recognition of girders, stiffeners & panels.

SDC Verifier 4.0 introduces updated plate buckling pre-processing tool named Stiffened Panels

Finder.

What are Panels, girders, stiffeners and plates As an addition to already known Panel Finder tool, stiffener and girder recognition is included in

order to check all the panels on both plate, girder and stiffener buckling:

In general, in the FEA models, stiffeners are modeled with beam elements and plates with shell

elements. For each stiffener, SDC Verifier recognizes the (buckling) length, the effective width

and the loads on the stiffened plate member (which consists of both beam and plate elements

as shown in blue below).

With the recognitions tools, the plate stresses and forces and moments on each stiffener beam

are transferred into the loading situation on the full stiffened plate as shown in the definition

picture from the DNV RP 201 standard:

The recognition tools of SDC Verifier find all panels with girders, stiffened plates and plates on

any model no matter the mesh size.

Plate Finder recognition The results of the original plate finder on all sections of a ship are shown below. Every plate is

shown in a different color.

stiffeners and girders recognition of all ship sections With version 4.0 also stiffeners and girders can be recognized:

If we zoom in to a single section we can see in the figure below Panels, simple stiffeners

(marked in blue) and girders or stiffeners which support also other stiffeners (marked in red).

Stiffeners with stiffener length shown

The engineer can check the buckling strength of plated structures by using the linear load

combination results of any FEA model. Because of the unique recognition features of SDC

Verifier this checking is not limited by meshing rules or special modeling techniques.

SDC Verifier enables the user to check the complete FEA model automatically according to

standards. Exporting FEA results to complex and time consuming spreadsheet for post-processing

is not necessary anymore!

In next preview, the checking of the stiffener or the stiffened plate According to the DNV standard

(DNV–RP-C201) will be explained.