Section 51 of 102
50. Material Model
Stable section ID: S05-CON-007-SECTION-51 · 61 content blocks
The Material Model shall represent material identity, engineering properties, source, condition, processing, and evidence.
BDL shall distinguish among:
material family;
material specification;
product form;
manufacturing batch;
material used in a specific Component;
measured material condition.
A Material declaration shall include, as applicable:
Material ID;
material class;
grade;
composition;
density;
elastic properties;
strength properties;
thermal properties;
moisture properties;
electrical properties;
durability;
fire behavior;
environmental limits;
recycled content;
source;
batch;
test evidence;
uncertainty.
Example:
material Timber_GL24_Batch_021 : EngineeredTimber {
id: "s05:material-instance:gl24-batch-021";
grade: GL24;
density: 420 kg/m3;
properties {
elastic_modulus_parallel:
certified(11.5 GPa, evidence: @Material_Certificate_021);
moisture_content:
measured(11.8 percent, evidence: @Moisture_Test_021);
}
source: @Supplier_01;
batch: "GL24-2027-021";
}
Material properties shall identify whether they are:
nominal;
characteristic;
design;
certified;
measured;
assumed;
temperature-dependent;
moisture-dependent;
time-dependent.
A Material Type used in early design shall not be confused with the verified material batch used in the manufactured Component.
Interfaces between dissimilar materials shall declare relevant compatibility conditions, including:
galvanic interaction;
moisture retention;
chemical reaction;
differential thermal expansion;
creep;
wear;
adhesion;
fire exposure.