The phrase "a relatively stiff" is correct and usable in written English.
It can be used to describe something that has a certain degree of stiffness compared to other objects or materials.
Example: "The material used in this construction is a relatively stiff composite, which enhances its durability."
Alternatives: "somewhat rigid" or "fairly inflexible".
The interlayers in modified designs were selected as a relatively stiff polyurethane rubber, and a fairly compliant elastomeric foam.
This paper focuses on laminated glass composed of two layers made of tempered glass and an interlayer made of either a totally compliant or a relatively stiff material.
Our results suggest that the corpus callosum may be sensitive to coronal and horizontal rotations because they drive lateral motion of a relatively stiff membrane, the falx, in the direction of commissural fibers below.
In this paper, a mixed numerical experimental identification procedure for characterising the storage and loss properties in sandwich structures with a relatively stiff core is developed.
The stress strain behavior of these copolymers exhibits a relatively stiff initial behavior followed by a rollover to a more compliant response.
It is found that beam extensibility has a significant effect on the system's damping characteristics, especially when the sleeve has a relatively stiff retaining spring.
On the other hand, concentrated growth factors (CGF), another modified form of PRF, are prepared by repeatedly switching the centrifugation speed and are characterized as a relatively stiffer fibrin clot [4].
In the LDFE analyses, a thin relatively stiff or soft clay layer was interbedded in a uniform or NC clay deposit, with various strength ratios between two successive layers and thickness ratios of the thin layer to the cone diameter explored.
This property can be described in analogy to a tent where relatively stiff rods with a low volume fraction result in a mechanically stabilized system.
Ultem® is a polyether imide having a very large and relatively stiff repeat unit.
Typical composite sandwich panels comprise a relatively thin, stiff, and strong skin plate with a relatively thick and light core.
