"supportive element" is perfectly correct and usable in written English.
You can use it when you are referring to an element of a sentence, idea or argument that adds additional evidence or explanation to a primary point. For example: "The author's explanation for his opinion was supported by a supportive element of scientific research."
It is the chief supportive element in bones and teeth.
The outermost coat, or tunica adventitia, is a tough layer consisting mainly of collagen fibres that act as a supportive element.
Certainly there's a supportive element.
Quantitative data has been seen as a supportive element to the peer review process [23].
In our case, two MRI were negative so we suggest CSF evidence of BBB damage as a supportive element of diagnosis that reinforces the hypothesis of RPON inflammatory nature, even when unverified with advanced neuroimaging.
The approach allows direct knowledge diffusion to the decision makers, which makes it as a supportive element to strategic planning and decision making, for both public and private stakeholders.
The supportive elements of the fins (basal or radial bones or both) have changed greatly during fish evolution.
In order to achieve a sustainable renovation, certain supportive elements are needed such as financing, successful project management, and an adequate number of qualified craftsmen with special skills.
One possible, and crucial, problem is that the tissues created by this generic approach lack many of the supportive elements that sustain the viability and function of the cells.
Due to low stiffness of supportive elements and its non-uniform presence all over the circumference of the bearing, the load upon rolling elements is rather unequal in those bearings.
Therefore, the supportive elements of culture and conferences are necessary for the integration of effort.
