Mechanical properties and failure behavior of 3D printed thermoplastic composites using continuous basalt fiber under high-volume fraction

作     者：Hang Zhang Wei-fu Sun Hang Zhang;Wei-fu Sun

作者机构：State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing100081China Beijing Institute of Technology Chongqing Innovation CenterChongqing401120China Explosion Protection and Emergency Disposal Technology Engineering Research Center of the Ministry of EducationBeijing10081China 

出 版 物：《Defence Technology(防务技术)》 (Defence Technology)

年 卷 期：2023年第27卷第9期

页      面：237-250页

核心收录：

学科分类：1101[军事学-军事思想及军事历史] 08[工学] 0826[工学-兵器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：the financial support from the National Key Research and Development Program of China(grant no.2020YFA0711800) National Natural Science Foundation of China(grant no.11802027) State Key Laboratory of Explosion Science and Technology(grant no.YPJH20-6,QNKT20-01,JCRC18-01) BITBRFFR Joint Research Program(BITBLR2020018) Beijing Institute of Technology Research Fund 

主　　题：Additive manufacturing Continuous basalt fiber Failure behavior Mechanical properties Thermoplastic composites 

摘      要：Continuous basalt fiber(CBF)is an outstanding inorganic fiber produced from nature,which has a wide range of applications in the field of armor protection of national defense ***,the mechanical response and failure mechanism of 3D printed CBF reinforced components are still not well ***,the 3D printing thermoplastic composites with high volume fraction CBF have been successfully prepared by fused deposition modelling(FDM)*** effects of fiber printing direction and polymer matrix type on the tensile and flexural properties of the 3D printed composites have been explored,and the detailed failure morphology has been characterized using scanning electron microscopy and optical *** was found that under high fiber volume fraction,3D printed CBF reinforced polyamides(PA)composites have the best ability to maintain material integrity of the composites,followed by acrylonitrile butadiene styrene(ABS)and high impact polystyrene(HIPS).Besides,the results from rule of mixtures can accurately predict the longitudinal Young’s modulus of the 3D printed specimens,but there exists a large discrepancy for the prediction of the tensile *** microstructure analysis shows that the failure modes of 3D printed composites mainly include fiber debonding,fiber pull-out,stress whitening and matrix cracking.