The phrase 'self-contained structure' is correct and can be used in written English.
You could use it to describe any structure or system that is complete and independent from other structures or systems. For example, "The software system was designed as a self-contained structure, allowing us to make changes without interference from other systems."
Instead, a content outline contains all the information that is used in the final text in a flexible, self-contained structure.
Think of it: a partially self-contained structure floating in calm seas, growing food, harvesting wave energy, and providing a home for… well, not that many people, but more than a few.
For completeness and self-contained structure of the proofs of Theorems 1.1 and 1.2, we need the following result of [13].
The Met was originally a self-contained structure in Central Park.
The C. elegans pharynx is an anatomically self-contained structure dedicated to ingestion and transportation of bacteria into the intestine (Albertson and Thomson, 1976; Avery and Horvitz, 1989).
Considered as open machines (subject-groups) rather than self-contained structures (subjugated groups), these subject-groups shunned hierarchy and vertical structures, developing transversally, rhizomatizing through other groups.
If we build small, self-contained structures, ones that do as little harm as possible to the environment, we can perhaps weather the collapse.
These are the circumventricular organs, such as the posterior pituitary gland, and are self-contained structures that are surrounded by physical restrictions, which prevent the free movement of molecules into noncircumventricular organ tissues.
Structuralism, in linguistics, any one of several schools of 20th-century linguistics committed to the structuralist principle that a language is a self-contained relational structure, the elements of which derive their existence and their value from their distribution and oppositions in texts or discourse.
Hence, the ALL can be considered as a self-contained anatomical structure.
However, it is also possible that there is an age for which the self-contained classroom structure is more appropriate.
