1991 Vol. 8, No. 3
1991, 8(3): 1-8.
Abstract:
High-modulus type carbon fiber reinforced aluminium composite materials,in which aluminium was ion-plated on,and fine SiC particulates were distributed among the fibers,were prepared by a pressure casting process.The composite characteristics of aluminium and these fibers were investigated.
High-modulus type carbon fiber reinforced aluminium composite materials,in which aluminium was ion-plated on,and fine SiC particulates were distributed among the fibers,were prepared by a pressure casting process.The composite characteristics of aluminium and these fibers were investigated.
1991, 8(3): 9-14.
Abstract:
This paper studied the influcnce of thermal cxposure,thermal cycle,matrix alloys,degree of rough surface and kinds of fiber on corrosion resistance of carbon-aluminium composite. The results indicate that the interfacial corrosion between carbon fiber and aluminium is aggravated and the corrosion resistance of carbon-aluminium composite deteriorated after exposing when carbon-aluminium composite was immersed in distilled water or 3.5% NaCl solution,and thermal cycle has a little effect on corrosion resistance of carbon-aluminium composite, rough surface has dctrimental effect on corrosion resistance of carbon-aluminium composite,carbon-aluminium composite is stronger than carbon-6061A1 composite and graphite-aluminium composite is stronger than carbon-aluminium composite on corrosion resistance.
This paper studied the influcnce of thermal cxposure,thermal cycle,matrix alloys,degree of rough surface and kinds of fiber on corrosion resistance of carbon-aluminium composite. The results indicate that the interfacial corrosion between carbon fiber and aluminium is aggravated and the corrosion resistance of carbon-aluminium composite deteriorated after exposing when carbon-aluminium composite was immersed in distilled water or 3.5% NaCl solution,and thermal cycle has a little effect on corrosion resistance of carbon-aluminium composite, rough surface has dctrimental effect on corrosion resistance of carbon-aluminium composite,carbon-aluminium composite is stronger than carbon-6061A1 composite and graphite-aluminium composite is stronger than carbon-aluminium composite on corrosion resistance.
1991, 8(3): 15-21.
Abstract:
Considerable works on curing reaction,network steasture and physical properties of TGDDM/DDS resin systerm have been published,yet there is less publications on rhcological behavior during curing reaction.In the present paper a constitutive equation the viscosity and time as well as curing temperacure have been proposed.Experimntal results conformed well to the equationg prediction.
Considerable works on curing reaction,network steasture and physical properties of TGDDM/DDS resin systerm have been published,yet there is less publications on rhcological behavior during curing reaction.In the present paper a constitutive equation the viscosity and time as well as curing temperacure have been proposed.Experimntal results conformed well to the equationg prediction.
1991, 8(3): 23-28.
Abstract:
Effect of coupling agent type,treated method and resin kind on interfacial morphology and mechanical properties were studied.
Effect of coupling agent type,treated method and resin kind on interfacial morphology and mechanical properties were studied.
1991, 8(3): 29-36.
Abstract:
This paper deals with the effects of hot water immersion and accelerated weather aging on the mechanical properties of polyphenylene sulfide (PPS) composites hybrid rainforc.:d with carbon fibre(CF) and glass fibre (GF). The tensile and flexible strength of these composites roughly conform to the mixture law,however they show different susecptablities to these two aging procedures.The strength retention of composites after aging is related to the aging mode an d the nature of fibres.
This paper deals with the effects of hot water immersion and accelerated weather aging on the mechanical properties of polyphenylene sulfide (PPS) composites hybrid rainforc.:d with carbon fibre(CF) and glass fibre (GF). The tensile and flexible strength of these composites roughly conform to the mixture law,however they show different susecptablities to these two aging procedures.The strength retention of composites after aging is related to the aging mode an d the nature of fibres.
1991, 8(3): 37-42.
Abstract:
In this paper the fracture energy GIC of epoxy-PSF system has been tes- ted with TDCB (Tapered-double-cantilever beam) samples.The results show that this system not only has a high GIC value, but also GIC and GIa are almost equal.Comparing the GIC temperature char with dynamic mechanical properties(DMA),we find that the toughness of the system relates to its visco- elastic properties.From the SEM photographs,a structure that the tenacious polymer as an unint}rruptad phase, wraps thermosetting spherule, i.e.a"networ- kmicrospherule" structure was observed.It is this structure that makes the GIC of epoxy-PSF system high.
In this paper the fracture energy GIC of epoxy-PSF system has been tes- ted with TDCB (Tapered-double-cantilever beam) samples.The results show that this system not only has a high GIC value, but also GIC and GIa are almost equal.Comparing the GIC temperature char with dynamic mechanical properties(DMA),we find that the toughness of the system relates to its visco- elastic properties.From the SEM photographs,a structure that the tenacious polymer as an unint}rruptad phase, wraps thermosetting spherule, i.e.a"networ- kmicrospherule" structure was observed.It is this structure that makes the GIC of epoxy-PSF system high.
1991, 8(3): 43-51.
Abstract:
This article describes the various resin-modifying methods and commix-modifying processes of resin-rubber. The comment and comparison to the effects of modification,as well as the advantages and disadvantages of these processes are also conducted.
This article describes the various resin-modifying methods and commix-modifying processes of resin-rubber. The comment and comparison to the effects of modification,as well as the advantages and disadvantages of these processes are also conducted.
1991, 8(3): 53-60.
Abstract:
In this paper,the delamination analysis and solution of composite laminated beam,stacked orthognally and symmetrically with four plies under transver loading is invisingated.
In this paper,the delamination analysis and solution of composite laminated beam,stacked orthognally and symmetrically with four plies under transver loading is invisingated.
1991, 8(3): 61-70.
Abstract:
The present Faper deals with tho problem of the micromechanics analysis of the elastic constants of a one-ply plain weave composite and plain weave composite laminac.
The present Faper deals with tho problem of the micromechanics analysis of the elastic constants of a one-ply plain weave composite and plain weave composite laminac.
1991, 8(3): 71-76.
Abstract:
The intcrlaminar tensile strength of T300/648 composite was investigated respectively in the lay-up directions of O/θ(θ=0°,15°, 30°,45°,60°,75°,90°).
The intcrlaminar tensile strength of T300/648 composite was investigated respectively in the lay-up directions of O/θ(θ=0°,15°, 30°,45°,60°,75°,90°).
1991, 8(3): 77-86.
Abstract:
An analysis for th:postbuckling bahavior of antisymmetrically laminated angle-ply rectangular plates with various boundary conditions is presented by making use of the pertuxbation tschniquc.The nondimensional maximum deflection is selected as.the perturbation parameter. A solution of perturbation differential equation of higher-order approximation is assumed in the form of double Fourier serics consisting of the beam function.This method is very efficient and the i.umcrical results show good convergence and reliability of the present solution.
An analysis for th:postbuckling bahavior of antisymmetrically laminated angle-ply rectangular plates with various boundary conditions is presented by making use of the pertuxbation tschniquc.The nondimensional maximum deflection is selected as.the perturbation parameter. A solution of perturbation differential equation of higher-order approximation is assumed in the form of double Fourier serics consisting of the beam function.This method is very efficient and the i.umcrical results show good convergence and reliability of the present solution.
1991, 8(3): 87-95.
Abstract:
For the purpose of applying the Bergan's "individual clement test" and "frce formulation",this paper suggests a laminated plate element including bend-exctensional coupling.The numerical results of some sample problem show that this clement is satisfying.
For the purpose of applying the Bergan's "individual clement test" and "frce formulation",this paper suggests a laminated plate element including bend-exctensional coupling.The numerical results of some sample problem show that this clement is satisfying.
1991, 8(3): 97-104.
Abstract:
The effect of geometric parameters of the shell and thp stiffener, as well as the shell laminate configuration on the buckling and initial postbuckling behavior of stringer or ring stiffancd laminate circular cylinders is analysed. The initial postbuckling analysis is based on Koiter's general theory.The calculations for various geometric parameters and shell laminate and loading configurations show that in every case,outside stiffening is more efficient than inside stiffening;the stiffening efficiency of composite cylinders is higher than their isotropic counterparts; the buckling and initial postbuckling behavior is influenced significantly by the shell laminate configuration.
The effect of geometric parameters of the shell and thp stiffener, as well as the shell laminate configuration on the buckling and initial postbuckling behavior of stringer or ring stiffancd laminate circular cylinders is analysed. The initial postbuckling analysis is based on Koiter's general theory.The calculations for various geometric parameters and shell laminate and loading configurations show that in every case,outside stiffening is more efficient than inside stiffening;the stiffening efficiency of composite cylinders is higher than their isotropic counterparts; the buckling and initial postbuckling behavior is influenced significantly by the shell laminate configuration.
