v.

become stiff or stiffer

"He stiffened when he saw his boss enter the room"

make stiff or stiffer

restrict

"stiffen the regulations"

同義詞：tightentighten upconstrain

Axial Load Behavior of Stiffened Concrete-Filled Steel Columns
Impact Identification of Stiffened Composite Panels : I. Systems Development
Improved genetic algorithm for the design of stiffened composite panels
Equivalent thickness bending analogy for integrally stiffened structures
Experimental behaviour of stiffened concrete-filled thin-walled hollow steel structural (HSS) stub columns
Analysis and design of the general and outmost-ring stiffened suspen-dome structures
Constitutive Laws of Concrete in Tension and Reinforcing Bars Stiffened by Concrete
Computer-aided generation of nonlinear reduced-order dynamic macromodels. II. Stress-stiffened case
Vibrational power flow from machines into built-up structures, part II: Wave propagation and power flow in beam-stiffened plates
A new method of analyzing wave propagation in periodic structures; Applications to periodic timoshenko beams and stiffened plates