Provmaterial
Provmaterial is a term used in some engineering, design, and educational contexts to denote materials employed for proof-of-concept work, validation tests, or prototype demonstrations. It is not a standardized technical term, and its meaning can vary by organization or field; in many cases, provmaterial refers to substitutes chosen to simulate or support the properties of a final material without incurring high costs.
In practice, provmaterial may include inexpensive polymers, foams, gels, metals, or repurposed components selected to emulate
The term is often described as a contraction of 'proof material' or 'provisional material.' Its usage is
Limitations include the potential divergence from the final material's properties, which can lead to misleading conclusions
See also: prototypes, mock-ups, proof of concept, test coupons.