SHAPE-THIN 7.xx - Dlubal Software

Updated:

07/08/2010

Extranet

SHAPE-THIN 7.xx

Cross-Section Properties and Design of Thin-Walled Sections

SHAPE-THIN is a comfortable and powerful tool to analyze any thin-walled cross-sections. The section geometry may be entered graphically or numerically by spreadsheets. Alternatively, it can be imported via DXF file.

A comprehensive library of sections that are common worldwide is included, too. You can use those sections to compose new ones by modifiying elements or adding new sectional components. The elements of the cross-section may also consist of different materials.

Many powerful CAD tools and commands enable you to model even complex sections by using e.g. fillets, arcs or openings.

SHAPE-THIN determines all relevant cross-section values including its plastic capacities, inclusive of special properties like shear center and warping characteristics for further torsional and warping analyses.

Apart from the elastic stress design, a plastic analysis can also be carried out. This design method includes the interaction of all internal forces for any thin-walled open and closed cross-sections.

SHAPE-THIN is also able to determine the effective cross-section properties according to EN 1993-1 and DIN 18800, depending on the various conditions of internal forces.

All sections can be integrated seamlessly in RSTAB and RFEM. As SHAPE-THIN is also a stand-alone program, however, it does not depend on the installation of RSTAB or RFEM.

Cross-Section Types


Open, closed, connected or non-connected (i.e. stiffening shear walls such as skyscraper cores) sections

Cross-Section Values


Cross-sectional area A Shear areas A-u, A-v, A-y, A-z Centroid y-C, z-C 2nd moments of area (moments of inertia) I-u, I-v, I-y, I-z, I-yz, I-p , I-pM Radii of gyration i-u, i-v, i-y, i-z, i-yz, i-p, i-pM, i-wM Inclination of principal axes Alpha Weight G Perimeter U Torsional constants J, J-St.Venant, J-Bredt Shear center y-M, z-M Warping constants I-wC, I-wM (or I-wD for lateral restraint) Warp rotation r-wM Section ranges r-u, r-v, r-Mu, r-Mv acc. to DIN 4114 Reduction factor Lambda-M Max/min section moduli S-u, S-v, S-y, S-z, S-wM inclusive of locations Plastic section properties N-pl, V-plu, V-plv, V-ply, V-plz, M-plu, M-plv, M-ply, M-plz, M-wpl Plastic section moduli Z-u, Z-v, Z-y, Z-z Plastic shear areas A-plu, A-plv, A-ply, A-plz Area bisecting axes f-u, f-v, f-y, f-z Inertia ellipse

Statical Moments


Statical moments Q-u, Q-v, Q-y, Q-z with specification of their locations and extreme values Warping statical moments Q-wM and warping ordinates w-M (or Q-wD and w-D for lateral restraint) Direction of shear flow

Stress Design


Stress distribution for various load cases and x-locations with specification of extreme values and comparison with limit stresses: Normal stresses Sigma-x due to N, M-u, M-v, M-w Shear stresses Tau due to V-u, V-v, M-T, St.Ven., M-T, Bredt, M-T, secondary Equivalent stresses Sigma-eqv with ratios of limit stresses Determination of the stresses either on most unfavorable edges or in element center lines

Stiffening Shear Wall Systems


Shear centers y-M, z-M Moments of inertia I-y, I-z, I-yz Torsional constants J-St.Venant, J-Bredt Warping constants I-w Shear forces V-y and V-z due to bending and torsion

Cross-Section Input


Due to the CAD-like input possibilities, you can set nodes, single or polygonal elements, arcs, point elements as well as rectangular and circular hollow sections graphically. If you are familiar with RSTAB or RFEM, you will find many common techniques like selecting elements or editing them. The selected objects can be moved, rotated, modified, connected or copied to the clipboard and then inserted in a different cross-section. Elements can be graphically divided or moved to a different element. SHAPE-THIN divides the target element automatically and joins the new element by a dummy element so that the shear flow is not disrupted.

Cross-Section Library


Rolled sections and various parametric section types may be taken out of an extensive section library and modified at any time. Those sections include, among others, asymmetric I-, C-, L-, Z-, hollow, crane runway, tube, box and cut sections.

Material Library


The material data E, G, γ, f-yk as well as the limit stresses Sigma, Tau, Sigma-eqv can be taken from an expandable library. If you do not find the material you need, you just add it.

Fillets and Openings


So-called point elements can be added as curved, square, circular or triangular objects or removed as sectional reductions. The library sections are already defined with the appropriate fillets, which guarantees a true-to-detail modeling of the section.

Internal Forces


The internal forces N, M-u, M-v, V-u, V-z, M-T,primary, M-T,secondary and M-w are summarized on x-locations and load cases. They can be also referred to the input axes y and z. There is an option to comfortably import the member results from RSTAB or RFEM.

Composite Cross-Sections


It is possible to define sections that are built up from elements with different materials. SHAPE-THIN determines the ideal section properties, dependent on the reference material.

Plastic Capacity


By using the Simplex method, SHAPE-THIN analyzes the plastic capacity with consideration of the combined loading conditions. The yield hypothesis for Sigma-eqv can be set according to Tresca and von Mises. Optionally, the maximum width-to-thickness ratios according to DIN 18800 (design methods elastic-elastic, elastic-plastic, plastic-plastic) can also be checked.

Effective Cross-Sections


The analysis of the effective cross-section properties can be carried out according to EN 1993-1 or DIN 18800. For each c/t zone of the section, the limiting proportions of the parts subject to compression are determined. The section is then classified in accordance with the least favorable class of its compression parts. For Class 4 sections, the maximum width-to-thickness ratios are determined.

Printout Report


The printout report carries the high standards of RSTAB or RFEM. Possible modifications of the section are updated automatically. There is also the option to print out a short-form printout for a condensed report on a single sheet.

Integration in RSTAB and RFEM


SHAPE-THIN sections are seamlessly integrated in the frameworks program RSTAB and the FEA program RFEM, inclusive of the add-on modules. Apart from the cross-section properties, the geometrical features of the sections are imported so that the members can be visualized attractively in the 3D renderings of RSTAB and RFEM.

QUICKSEARCH


All Dlubal Sites (Fulltext)
Update Reports
FAQs
Graduation Theses
Links
PDF

Note

You can find more information about SHAPE-THIN here:

	Manual (PDF / 4.14 MB)
	Hotline
	Training

Demo version of RSTAB 7.xx with SHAPE-THIN and add-on modules
Try out RSTAB yourselves and download a free demo version of RSTAB, SHAPE-THIN, and the other add-on modules.
[Page with downloads...]

Request information
Download our new brochure about all Dlubal products in the PDF format. Alternatively, we can send you the brochure including a demo DVD directly by mail.
[Free materials...]