Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Jack E. Helms"'
Publikováno v:
Composite Structures. 62:83-89
Due to the aging of the infrastructures in the US, repair and rehabilitation of damaged steel reinforced concrete structures using fiber reinforced plastics (FRP) are increasingly becoming a topic of interest in the infrastructure community. In this
Publikováno v:
Composite Structures. 60:73-81
In this study, laminated beam samples were predamaged by low velocity impact. The damaged samples were repaired using either ambient environment curing epoxy, heat activated curing prepreg, or ultraviolet (UV) curing resin. Environmental conditioning
Publikováno v:
Polymer Composites. 24:60-67
There is currently a need to develop high-pressure composite butt-weld joints to meet the needs of deepwater activities. In this study, a tapered butt-weld composite joint configuration is proposed. Finite element analysis was conducted to validate t
Publikováno v:
Polymer Composites. 24:45-52
An analytical model of the behavior of an adhesive-bonded taper-taper composite joint under axial compressive loading has been developed using the Ritz Method. The model was based on laminated beam theory. A Fourier series was used to represent the t
Publikováno v:
Composites Part B: Engineering. 34:1-9
Stiffened cylindrical shells are the major components of aerospace structures. In this study global buckling load for a generally cross and horizontal grid stiffened composite cylinder was determined. This was accomplished by developing an analytical
Publikováno v:
Polymer Composites. 22:593-603
Based on Christen sen and Lo's (11) three-layer sphere model, a two-layer built-in model is proposed to represent particulate-filled composites. Following Papanico-laou and Bakos' (14) procedure for a particle embedded in an infinite matrix model and
Publikováno v:
Composites Part B: Engineering. 32:521-528
In this study, an E-glass fiber reinforced epoxy composite laminate is subjected to ultraviolet radiation (UV) for up to 48 h. The intensity of the UV radiation is 1.5 J/cm 2 /min. A total of 39 specimens are prepared and tested, in which three speci
Publikováno v:
Journal of Composite Materials. 35:237-252
Based on a spring-mass model developed by Pang et al. (1995) for a single-lap joint under impact load, the low-velocity impact responses of a composite laminate adhesively-bonded to a metal substrate have been studied. In this quasi-static model, the
Publikováno v:
Polymer Composites. 21:686-695
The low velocity impact response of laminated composites in ambient hygrothermal environments has been extensively investigated. This response, however, is not well understood when subjected to moisture cycling at elevated temperatures. In this curre
Publikováno v:
Journal of Engineering Materials and Technology. 121:374-380
A model of a taper-taper adhesive-bonded joint under cylindrical bending has been derived using first-order laminated plate theory. Shear correction factors were used to account for transverse shear deformation. A FORTRAN program was written to integ