TR.26 Specifying and Assigning Material Constants
Material constants are attributes like Modulus of Elasticity and Density which are required for operations like generating the stiffness matrix, computing selfweight, and for steel and concrete design.
In STAAD, there are two ways in which this data may be specified :
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A two-step process that involves:
- Creating the material data by defining
MATERIAL
tags specified under the headingDEFINE MATERIAL
(See TR.26.1 Define Material) - Assigning them to individual members, plates and solids under the heading
CONSTANTS
(See TR.26.2 Specifying Constants for Members andElements)
This will create commands as shown below:
Part 1DEFINE MATERIAL ... name ... ... END MATERIAL Part 2CONSTANTS MATERIAL name ...
- Creating the material data by defining
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Assign material attributes explicitly by specifying the individual constants (See TR.26.2 Specifying Constants for Members andElements).
CONSTANTS E ... POISSON .
See TR.26.3 Surface Constants Specification for an explanation for the commands required to assign material data to Surface elements.