... temperature, the bearing failure was catastrophic, resulting in widespread delamination due to the brittleness of the matrix. 11 12 2000 18 09 2001 ply buckling thermal aging durability compression bearing strength References Counts , W. A. and Johnson , W. S. , “ Bolt...

... (FEA) of the specimens was required. Using FEA solutions, it was determined that the fracture toughness of the environmentally exposed specimens was lower than the as-received specimens for every environment tested for both DCB and ENF specimens. KEYWORDS: durability, fatigue, composites, joints Aging...

... interfaces are studied: phenolic FRP-wood and epoxy FRP-wood bonds. In the present paper, Part 1, the durability and shear strength of FRP-wood bonds are evaluated by modified ASTM tests. First, the service performance and durability of FRP-wood interface bond is evaluated using a modified ASTM delamination...

... fiber durability compression properties thermal aging Kenneth J. Bowles1 Durability of Graphite-Fiber-Reinforced PMR-15 Composites Aged at Elevated Temperatures REFERENCE: Bowles, K. J., Durability of Graphite-FiberReinforced PMR-15 Composites Aged at Elevated Temperatures, Journal of Composites...

...RV Valentin; LM Butkus; WS Johnson A multi-faceted study was performed to investigate the durability of a boron-epoxy doubler (patch) adhesively bonded to an aluminum substrate. Double cantilever beam (DCB) specimens were tested to determine the fracture toughness and fatigue characteristics...

... for detecting changes in the polymer surface following UV exposure. alkaline conditions building technology composites durability polyester moisture saline conditions vinyl ester ultraviolet radiation References AASHTO , The Bottom Line: Transportation Investment Needs—1998–2002 , American...

... and damage tolerance characteristics of a prototype composite cylindrical shell are examined. KEY WORDS: composites, composite structures, compression, damage, degradation, durability, external pressure, fracture, laminates, simulation, structural degradation Laminated composite shells have found extensive...

... exhibits greater ductilityat lower loading frequencies in laminates with and withoutthe interleaf. KEY WORDS: delamination, fatigue, frequency effects, interleaf, damage tolerance, durability, fractography Loading frequency was considered to have little effect on the fatigue life of metals. However, recent...

... and strength-to-weight ratios of advanced composites, combined with their inherent corrosion resistance, environmental durability, and tailorability make them attractive for use in infrastructure renewal. In this paper, we investigate the effect of environmental exposure on the strengthening efficiency...

...: delamination, delamination resistance, composite structures, composite design, delamination growth, fatigue loads, interleaving, stitching, damage tolerance, durability Applications of composite materials to flight vehicles possess unique characteristics in structural design. For example, the directional...