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A platform for research: civil engineering, architecture and urbanism
Meso-FE Modeling of Woven Fabric to Establish the Effects of Frictional Contact between Yarns
Meso scale modeling has enormous impact on outcome of final composite material. For better understanding, immense research is carried, and state of the art literature review is presented in this thesis. For geometric modeling, a meso scale model of 2x2 Twill weave pattern is imported from TexGen software. Hypo elastic constitutive model is developed for material modeling of the yarn. Inter-yarn frictional behavior is thoroughly analyzed to explore the effects of different frictional models and contact types, to produce a cost-effective process on the outcome of final composite product. For an efficient investigation, a meso-finite elemental analysis is performed by replicating picture frame test virtually in Abaqus/Explicit solver. Suitable contact formulation and multiple friction models are used to input the frictional parameters on meso scale model. Finally, the simulation results are then validated by comparing between corresponding contact algorithms and frictional models. Objective of this thesis: The main objective is to determine the mechanical properties, concentrating on effects of friction of a Twill pattern weave by performing virtual simulations by replicating picture frame test (PFT). Solution process: Adequate literature research is accomplished for better understanding of concepts of simulation. In material modeling, hypo elastic material is defined for material properties is imported through VUMAT. Multiple frictional models, including VFRIC and VFRICTION are added to the model to define frictional behavior. In-plane shear deformations are calculated by numerical simulations virtually in Abaqus/Explicit solver and then results are examined. Key Results: Satisfied simulation results are obtained as expected. The frictional behavior between yarns is sensitive to contact algorithms and friction models, and quality of material modeling. The shear locking phenomenon is captured beyond 55-degree shear angle and observed that regardless of value of coefficient of friction yarns, the type of frictional ...
Meso-FE Modeling of Woven Fabric to Establish the Effects of Frictional Contact between Yarns
Meso scale modeling has enormous impact on outcome of final composite material. For better understanding, immense research is carried, and state of the art literature review is presented in this thesis. For geometric modeling, a meso scale model of 2x2 Twill weave pattern is imported from TexGen software. Hypo elastic constitutive model is developed for material modeling of the yarn. Inter-yarn frictional behavior is thoroughly analyzed to explore the effects of different frictional models and contact types, to produce a cost-effective process on the outcome of final composite product. For an efficient investigation, a meso-finite elemental analysis is performed by replicating picture frame test virtually in Abaqus/Explicit solver. Suitable contact formulation and multiple friction models are used to input the frictional parameters on meso scale model. Finally, the simulation results are then validated by comparing between corresponding contact algorithms and frictional models. Objective of this thesis: The main objective is to determine the mechanical properties, concentrating on effects of friction of a Twill pattern weave by performing virtual simulations by replicating picture frame test (PFT). Solution process: Adequate literature research is accomplished for better understanding of concepts of simulation. In material modeling, hypo elastic material is defined for material properties is imported through VUMAT. Multiple frictional models, including VFRIC and VFRICTION are added to the model to define frictional behavior. In-plane shear deformations are calculated by numerical simulations virtually in Abaqus/Explicit solver and then results are examined. Key Results: Satisfied simulation results are obtained as expected. The frictional behavior between yarns is sensitive to contact algorithms and friction models, and quality of material modeling. The shear locking phenomenon is captured beyond 55-degree shear angle and observed that regardless of value of coefficient of friction yarns, the type of frictional ...
Meso-FE Modeling of Woven Fabric to Establish the Effects of Frictional Contact between Yarns
Taduri, Ajay Kumar (author)
2020-10-01
Theses
Electronic Resource
English
DDC:
690
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