The phrase "as the principal structural" is correct and usable in written English.
It can be used in contexts discussing the main or primary structural elements of a system, design, or concept.
Example: "The building was designed with concrete as the principal structural material to ensure durability and stability."
Alternatives: "as the main structural" or "as the primary structural".
Collagen's success as the principal structural element in load-bearing, connective tissue has motivated the development of numerous engineering approaches designed to recapitulate native fibril morphology and strength.
Ground bass, also called basso ostinato (Italian: "obstinate bass"), in music, a short, recurring melodic pattern in the bass part of a composition that serves as the principal structural element.
Low-carbon 316 stainless steel with medium-nitrogen (316FR) is considered as the principal structural material for next generation fast breeder reactor (FBR) plants in Japan.
The exclusion of MMP-2 from areas rich in F-actin (ie, filopodia) suggests a possible functional connection of MMP-2 with the microtubular system, known to act as the principal structural component of neurite extension and retraction.
As the principal structural proteins of eukaryotic chromosomes, histones are attractive targets for fluorescent nuclear labeling.
As the principal structural elements, laminin and collagen IV form distinct networks [ 81] which become noncovalently interconnected by mono- or oligomeric nidogen [ 41, 82, 83] and perlecan, able to form irregular polymers [ 74, 84] and 1(b)).
Steel connections are an important component of any structural steel building, as they provide links between the principal structural members.
Identification of the principal structural proteins.
The principal structural characteristics of Gothic architecture arose out of medieval masons' efforts to solve the problems associated with supporting heavy masonry ceiling vaults over wide spans.
Cellulose, the principal structural component of plants, is a complex polysaccharide comprising many glucose units linked together; it is the most common polysaccharide.
This carbohydrate macromolecule is the principal structural component of the cell wall of most plants.
