diff --git a/src/model/solid_mechanics/materials/internal_field.hh b/src/model/common/consitutive_laws/internal_field.hh
similarity index 100%
rename from src/model/solid_mechanics/materials/internal_field.hh
rename to src/model/common/consitutive_laws/internal_field.hh
diff --git a/src/model/solid_mechanics/materials/internal_field_tmpl.hh b/src/model/common/consitutive_laws/internal_field_tmpl.hh
similarity index 100%
rename from src/model/solid_mechanics/materials/internal_field_tmpl.hh
rename to src/model/common/consitutive_laws/internal_field_tmpl.hh
diff --git a/src/model/solid_mechanics/materials/random_internal_field.hh b/src/model/common/consitutive_laws/random_internal_field.hh
similarity index 100%
rename from src/model/solid_mechanics/materials/random_internal_field.hh
rename to src/model/common/consitutive_laws/random_internal_field.hh
diff --git a/src/model/solid_mechanics/materials/random_internal_field_tmpl.hh b/src/model/common/consitutive_laws/random_internal_field_tmpl.hh
similarity index 100%
rename from src/model/solid_mechanics/materials/random_internal_field_tmpl.hh
rename to src/model/common/consitutive_laws/random_internal_field_tmpl.hh