Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: Thin-walled compound cross-sections shareware ?

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Doesn't seem to work with Autocad LT.

Raghu Pendyala
Pendyala Consulting, Civil and Structural Engineers
Melbourne, Australia

Bill Allen, S.E. wrote:

> This isn't a "cheap" solution, but may be if you have AutoCAD. AutoCAD will calculate these properties for you. In R14, you convert your objects to a region (Draw/Region then select the objects you want to convert). Once you have a region, you can type at the command line "massprop" and then select all of the objects. the following is a sample of results (using a pipe):
>
> Command: massprop
>
> Select objects: Other corner: 2 found
>
> Select objects:
>
>  ----------------   REGIONS   ----------------
>
> Area:                    23.0539
> Perimeter:               24.0196
> Bounding box:         X: 3.4131  --  7.4860
>                       Y: 3.5259  --  7.5987
> Centroid:             X: 5.4496
>                       Y: 5.5623
> Moments of inertia:   X: 734.7656
>                       Y: 706.1512
> Product of inertia:  XY: 698.8063
> Radii of gyration:    X: 5.6455
>                       Y: 5.5345
> Principal moments and X-Y directions about centroid:
>                       I: 21.5057 along [0.8507 0.5257]
>                       J: 21.5057 along [-0.5257 0.8507]
>
> You should be mindfull of where you are drawing your object with respect to the global X-Y axis.
>
> Hope this helps,
> Bill
>
> -----Original Message-----
> From:   rangelow.peter(--nospam--at)iks.hochtief.de [SMTP:rangelow.peter(--nospam--at)iks.hochtief.de]
> Sent:   Thursday, January 29, 1998 7:49 AM
> To:     seaoc(--nospam--at)seaoc.org
> Subject:        Thin-walled compound cross-sections shareware ?
>
> Do you know of some good and inexpensive program
> that calculates shear area and 2nd moments of inertia
> of thin-walled compound cross-sections?
>
> I would appreciate any response,
>
> Peter Rangelow
> Hochtief AG,
> Frankfurt , Germany
>
>
>   ------------------------------------------------------------------------
>
>    Part 1.2       Type: application/ms-tnef
>               Encoding: base64