====== General Points ======

<note>TODO</note>

====== Definition of a material law ======

These laws are usually referenced by [[doc:user:elements:general:materials|materials]] to define a hardening type of a viscosity function. Examples of some available laws for isotropic hardening can be found in [[doc:user:elements:volumes:isohard|]].

  lawno = lawset.define (numero, type)
  lawno = lawset(numero)
  lawno.put(param, value)
  lawno.depend(param, fct, Key(Lock)))
  ...

|''numero''     | number of the material law (must be unique) |
|''type''       | type of material (for example ''LinearIsotropicHardening'') - see [[doc:user:start#Lois matérielles]]  |
|''param''      | name of the law parameter (for example ''IH_SIGEL'')  |
|''value''      | value of the law parameter  |
|''fct'' | function which characterizes the dependency of the property (optional: no ''fct'' if no dependency) |
|''Lock'' | [[doc:user:general:locks|Lock]] which defines the dependency variable of the property (compulsory if there is a dependency) |