A theoretical study on the mechanical and ther-momechanical properties of hybrid nanocompositesreinforced by nanotubes(NT)and nanoplatelets(NP)is presented.The stiffness and coefficient ofthermal expansion(CTE)are der...A theoretical study on the mechanical and ther-momechanical properties of hybrid nanocompositesreinforced by nanotubes(NT)and nanoplatelets(NP)is presented.The stiffness and coefficient ofthermal expansion(CTE)are derived via an ap-proach based on Mori-Tanaka method.The influ-ences of hybrid ratio,reinforcement volume frac-tion,aspect ratio and orientation on the展开更多
It is well known that voids have detrimental effects on the performance of composites. This study aims to provide a practical method for predicting the effects of process induced voids on the properties of composites....It is well known that voids have detrimental effects on the performance of composites. This study aims to provide a practical method for predicting the effects of process induced voids on the properties of composites. Representative volume elements （RVE） for carbon fibre/epoxy composites of various fibre volume fractions and void contents are created, and the moduli and strengths are derived by finite element anal- ysis （FEA）. Regression models are fitted to the FEA data for predicting composite properties including tensile, compressive and shear. The strengths of composite laminates including tensile strngth and interlaminar shear strength （ILSS） are calculated with the aid of the developed models. The model predictions are compared with various experimental data and good agreement is found. The outcome from this study provides a useful optimisation and robust design tool for realising affordable composite prod- ucts when process induced voids are taken into account.展开更多
A study on the mechanical and thermo-mechanical properties of carbon nanotube(CNT)reinforced nanocomposites is presented in this article.Mori-Tanaka method is used for modeling the effective stiffness and coefficient ...A study on the mechanical and thermo-mechanical properties of carbon nanotube(CNT)reinforced nanocomposites is presented in this article.Mori-Tanaka method is used for modeling the effective stiffness and coefficient of thermal expansion.Regression formulas were developed to describe the effects of CNT orientation,aspect ratio,and CNT volume fraction.Given the statistical distributions of CNT orientations and aspect ratios,the effective properties can be conveniently derived by numerical integration using these formulas.展开更多
文摘A theoretical study on the mechanical and ther-momechanical properties of hybrid nanocompositesreinforced by nanotubes(NT)and nanoplatelets(NP)is presented.The stiffness and coefficient ofthermal expansion(CTE)are derived via an ap-proach based on Mori-Tanaka method.The influ-ences of hybrid ratio,reinforcement volume frac-tion,aspect ratio and orientation on the
文摘It is well known that voids have detrimental effects on the performance of composites. This study aims to provide a practical method for predicting the effects of process induced voids on the properties of composites. Representative volume elements （RVE） for carbon fibre/epoxy composites of various fibre volume fractions and void contents are created, and the moduli and strengths are derived by finite element anal- ysis （FEA）. Regression models are fitted to the FEA data for predicting composite properties including tensile, compressive and shear. The strengths of composite laminates including tensile strngth and interlaminar shear strength （ILSS） are calculated with the aid of the developed models. The model predictions are compared with various experimental data and good agreement is found. The outcome from this study provides a useful optimisation and robust design tool for realising affordable composite prod- ucts when process induced voids are taken into account.
文摘A study on the mechanical and thermo-mechanical properties of carbon nanotube(CNT)reinforced nanocomposites is presented in this article.Mori-Tanaka method is used for modeling the effective stiffness and coefficient of thermal expansion.Regression formulas were developed to describe the effects of CNT orientation,aspect ratio,and CNT volume fraction.Given the statistical distributions of CNT orientations and aspect ratios,the effective properties can be conveniently derived by numerical integration using these formulas.
