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Volume 34 Issue 4
Jul 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(4): 044206.
MENG Xiangsheng, WU Xiaodong, ZHANG Haiguang. Numerical Simulation on Interlaminar Fracture Toughness of 3D Printed Mortar Laminated Composites[J]. Chinese Journal of High Pressure Physics, 2020, 34(4): 044206. doi: 10.11858/gywlxb.20190827
Citation: MENG Xiangsheng, WU Xiaodong, ZHANG Haiguang. Numerical Simulation on Interlaminar Fracture Toughness of 3D Printed Mortar Laminated Composites[J]. Chinese Journal of High Pressure Physics, 2020, 34(4): 044206. doi: 10.11858/gywlxb.20190827
shu

Numerical Simulation on Interlaminar Fracture Toughness of 3D Printed Mortar Laminated Composites

doi: 10.11858/gywlxb.20190827
  • 1.

    College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

  • 2.

    Department of Nuclear Emergency and Safety, China Institute for Radiation Protection, Taiyuan 030006, Shanxi, China

  • Received Date: 27 Aug 2019
  • Rev Recd Date: 14 Oct 2019
  • Publish Date: 25 Feb 2020
    Abstract
  • In this paper, the interlaminar fracture toughness of 3D printed mortar laminated composite was investigated by finite element numerical simulation. Firstly, finite element models of the model-I and model-II fracture toughness were established based on cohesive principle and displacement control loading method, and used to simulate the interlaminar opening and staggering process of composites. Then the reliability of the finite element numerical method was verified by compared with the experiment results. Finally, the effects of initial crack length, fracture toughness, initial interface stiffness, interface strength, bonding layer thickness and clear distance on the mechanical properties of 3D printed mortar laminated composite were analyzed. The results show that, for the model-I, reducing the initial crack length, increasing the fracture toughness and increasing the bonding layer thickness can improve interface bearing capacity; and the change of initial interface stiffness and interface strength has no effect on the peak value of tensile force. For the model-II, reducing the initial crack length, enhancing the interface strength, increasing the fracture toughness value and reducing the bonding layer thickness can improve the interface bearing capacity; and the change of the initial interface stiffness has no significant effect on the load-displacement curve.

     

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