Shear in flexure of fiber composites with different end supports.
The integrity of fiber-reinforced composite (FRC) prostheses is dependent, in part, on flexural rigidity. The object of this study was to determine if the flexure behavior of uniform FRC beams with restrained or simply supported ends and various length/depth (L/d) aspect ratios could be more accurately modeled by correcting for shear. Experimental results were compared with three analytical models. All models were accurate at high L/d ratios, but the shear-corrected model was accurate to the lowest, more clinically relevant, L/d values. In this range, more than 40% of the beam deflection was due to shear.
Eckrote
K A
KA
Center for Biomaterials, MC-1615, School of Dental Medicine, University of Connecticut Health CEnter, Farmington, 06030, USA.
Burstone
C J
CJ
Freilich
M A
MA
Messer
G E
GE
Goldberg
A J
AJ
D003188:Composite Resins; D003799:Dental Stress Analysis; D003779:Denture Design; D003830:Denture, Partial, Fixed; D004548:Elasticity; D008422:Materials Testing; D018583:Pliability; D033081:Shear Strength
D003188:Composite Resins; C113550:FiberKor, sculpture