Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


SAP2000 Material Properties of Wood

SAP2000 Material Properties of Wood

SAP2000 Material Properties of Wood

I am modelling a wood truss in SAP2000, these are the material properties I used for wood:

Local Axis 1: Longtiudinal
Local Axis 2: Radial
Local Axis 3: Tangential

Define > Materials
Check 'Show Advanced Properties'
>Add New Material...>Material Type 'Other'>Material Name "SPF No.1/2"
Directional Symmetry Type: Orthotropic
>Modify/Show Material Properties
E1=E2=E3=9500 MPa (T5.3.1A CWC-Wood Design Manual)=6500e6 N/m^2 (if your units are set to (N, M, C)
For Axially Loaded Members as in a Wood Truss:
Poisson Ratios:
U12: Longitudinal Force causing Radial deformation = 0.280 to 0.422
U13: Longitudinal Force causing Tangential deformation = 0.292 to 0.462
U23: Radial Force causing Tangential deformation = 0.382 to 0.437

From [1] Green, Winandy, Kretschman, Chapter 4: Mechanical Properties of Wood (Not available in CWC-WDM)

From Canadian Wood Council - Wood Design Manual:
A1=4e-6 per C
A2=40e-6 per C
A3=27e-6 per C

Shear Modulus (Modulus of Rupture) from [1] and same convention as poisson ratio:

G12=0.078E to 0.131E
G13=0.053E to 0.138E
G23=0.003E to 0.017E

Weight per unit volume: 420 kg/m^3
Mass per unit volume: 4100 N/m^3

Nonlinear Material Data - Open for discussion
Material Damping Properties - Open for discussion
Thermal Properties - Open for discussion

My interests: Fire Safety Engineering, modern wood products, 3D Design and Drafting, Engineering Surveying

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close