Impact Damage of 3D Orthogonal Woven Composite Circular Plates |
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Authors: | Changgan Ji Baozhong Sun Yiping Qiu Bohong Gu |
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Affiliation: | (1) College of Textiles, Donghua University, Shanghai, China, 201620;(2) Department of Textile Engineering, Zhongyuan Institute of Technology, Zhengzhou, Henan Province, 450007, China |
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Abstract: | The damages of 3D orthogonal woven composite circular plate under quasi-static indentation and transverse impact were tested
with Materials Test System (MTS) and modified split Hopkinson bar (SHPB) apparatus. The load vs. displacement curves during
quasi-static penetration and impact were obtained to study the energy absorption of the composite plate. The fluctuation of
the impact stress waves has been unveiled. Differences of the load-displacement curves between the quasi-static and impact
loading are discussed. This work also aims at establishing a unit-cell model to analyze the damage of composites. A user material
subroutine which named VUMAT for characterizing the constitutive relationship of the 3-D orthogonal woven composite and the
damage evolution is incorporated with a finite element code ABAQUS/Explicit to simulate the impact damage process of the composite
plates. From the comparison of the load-displacement curves and energy absorption curves of the composite plate between experimental
and FEM simulation, it is shown that the unit-cell model of the 3D woven composite and the VUMAT combined with the ABAQUS/Explicit
can calculate the impact responses of the circular plate precisely. Furthermore, the model can also be extended to simulate
the impact behavior of the 3D woven composite structures. |
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Keywords: | 3D orthogonal woven composite Unit-cell Transverse impact FEM simulation User subroutine |
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