A parametric method is developed to quantitatively represent the microstructure of 3D woven structures. Different binding patterns, such as angle interlock and orthogonal interlock with through-thickness or layer-to-l...A parametric method is developed to quantitatively represent the microstructure of 3D woven structures. Different binding patterns, such as angle interlock and orthogonal interlock with through-thickness or layer-to-layer bindings, are classified. A unit cell of 3D woven structure is defined with four constituent yarn systems represented by nine structural parameters. A mapping relationship between the 3D woven structure and corresponding representative parameters is thus established. The study indicates that four out of the nine parameters are necessary to represent a 3D woven structure with an angle interlock binding, and that five parameters are required to describe a 3D woven structure with an orthogonal interlock binding. Once the structural parameters are determined, the pattern of 3D woven structures can be unambiguously identified, and vice versa. In addition to the purpose of structure presentation, the method can be further used as a means for designing 3D woven structure to meet the performance requirements of 3D woven composites.展开更多
The curriculum“Woven Fabric Structure Design and Application”is the core curriculum of textile majors in higher vocational colleges,which plays a very important role in the cultivation of students’vocational abilit...The curriculum“Woven Fabric Structure Design and Application”is the core curriculum of textile majors in higher vocational colleges,which plays a very important role in the cultivation of students’vocational ability and professional quality.The curriculum reform of“Woven Fabric Structure Design and Application”through the deep cooperation of industry-college partnerships,the comprehensive analysis of the major training objectives and graduation requirements,the redesign of the curriculum teaching content,the improvement of the teaching method and the examination method,has achieved good results.展开更多
This paper studied the impact resistance of 3D integrated cellular woven composite panel under persudo-static impact, comprised the test result with property of typical 3D woven composites, analyzed some parameters th...This paper studied the impact resistance of 3D integrated cellular woven composite panel under persudo-static impact, comprised the test result with property of typical 3D woven composites, analyzed some parameters that maybe affect composites＇ impact resistance and at last used SEM to observe the damage process and mechanism of samples. The result shows that the impact resistance of 3D integrated cellular woven composites is much better than the performance of typical 3D woven composites; it is an active method to improve the impact resistance of composites that developing preform with cellular on the basis of typical 3D woven structure; for different 3D integrated cellular woven structure, the value of absorbed-energy is increasing with the hollow percentage; tiny deformatlen will not emerge on samples until the acting force gets to 85% of the maximum; similar with typical 3D woven composites, the delaminated phenomenon of 3D integrated cellular woven composites is also unapparent during impact process.展开更多
Despite the abundance of highly sustainable bamboo,people tend to overlook its structural performance for construction purposes.This paper therefore explores the potential of bamboo architecture to develop light-weigh...Despite the abundance of highly sustainable bamboo,people tend to overlook its structural performance for construction purposes.This paper therefore explores the potential of bamboo architecture to develop light-weight building systems and also to create an effect of lightness.Developed by a team at the School of Architecture of Southeast University,Bamboo Canopy is an outdoor stage canopy in Anji,China,that pushes the boundaries of bamboo as a material for building woven gridshell structure.The work is designed as a long-lifespan bamboo structure,with the design team and locals participating in its construction.Positioned on a public stage,Bamboo Canopy experiments with the combination of sustainable construction and local craftsmanship to produce a highly engaging architectural intervention that activates the existing place.With its wing-like form,it invites visitors to join the performance scene-as they approach the shell,the structure reveals itself-with a 12.4-metre span and 6-metre roof overhang,the canopy covers more than 150 square metres with only 1.2 square metres touching the ground.Through analysing the form,structure and details of this experimental project,this paper clarifies not only the potentiality but also the feasibilities in using bamboo for light construction.展开更多
基金the Research Fund for the Doctoral Program of Higher Education and the Shanghai Key Discipline Project
文摘A parametric method is developed to quantitatively represent the microstructure of 3D woven structures. Different binding patterns, such as angle interlock and orthogonal interlock with through-thickness or layer-to-layer bindings, are classified. A unit cell of 3D woven structure is defined with four constituent yarn systems represented by nine structural parameters. A mapping relationship between the 3D woven structure and corresponding representative parameters is thus established. The study indicates that four out of the nine parameters are necessary to represent a 3D woven structure with an angle interlock binding, and that five parameters are required to describe a 3D woven structure with an orthogonal interlock binding. Once the structural parameters are determined, the pattern of 3D woven structures can be unambiguously identified, and vice versa. In addition to the purpose of structure presentation, the method can be further used as a means for designing 3D woven structure to meet the performance requirements of 3D woven composites.
文摘The curriculum“Woven Fabric Structure Design and Application”is the core curriculum of textile majors in higher vocational colleges,which plays a very important role in the cultivation of students’vocational ability and professional quality.The curriculum reform of“Woven Fabric Structure Design and Application”through the deep cooperation of industry-college partnerships,the comprehensive analysis of the major training objectives and graduation requirements,the redesign of the curriculum teaching content,the improvement of the teaching method and the examination method,has achieved good results.
基金Supported by Zhejiang Science and Technology Research Project(No.2005C21073)
文摘This paper studied the impact resistance of 3D integrated cellular woven composite panel under persudo-static impact, comprised the test result with property of typical 3D woven composites, analyzed some parameters that maybe affect composites＇ impact resistance and at last used SEM to observe the damage process and mechanism of samples. The result shows that the impact resistance of 3D integrated cellular woven composites is much better than the performance of typical 3D woven composites; it is an active method to improve the impact resistance of composites that developing preform with cellular on the basis of typical 3D woven structure; for different 3D integrated cellular woven structure, the value of absorbed-energy is increasing with the hollow percentage; tiny deformatlen will not emerge on samples until the acting force gets to 85% of the maximum; similar with typical 3D woven composites, the delaminated phenomenon of 3D integrated cellular woven composites is also unapparent during impact process.
基金support from the National Natural Science Foundation of China(No.51908113&51778122).
文摘Despite the abundance of highly sustainable bamboo,people tend to overlook its structural performance for construction purposes.This paper therefore explores the potential of bamboo architecture to develop light-weight building systems and also to create an effect of lightness.Developed by a team at the School of Architecture of Southeast University,Bamboo Canopy is an outdoor stage canopy in Anji,China,that pushes the boundaries of bamboo as a material for building woven gridshell structure.The work is designed as a long-lifespan bamboo structure,with the design team and locals participating in its construction.Positioned on a public stage,Bamboo Canopy experiments with the combination of sustainable construction and local craftsmanship to produce a highly engaging architectural intervention that activates the existing place.With its wing-like form,it invites visitors to join the performance scene-as they approach the shell,the structure reveals itself-with a 12.4-metre span and 6-metre roof overhang,the canopy covers more than 150 square metres with only 1.2 square metres touching the ground.Through analysing the form,structure and details of this experimental project,this paper clarifies not only the potentiality but also the feasibilities in using bamboo for light construction.
