B4C增强铝基复合材料力学性能有限元模拟

王传薪, 刘东明, 王建刚, 李斌

王传薪, 刘东明, 王建刚, 等. B4C增强铝基复合材料力学性能有限元模拟[J]. 复合材料学报, 2016, 33(10): 2253-2260. DOI: 10.13801/j.cnki.fhclxb.20160112.006
引用本文: 王传薪, 刘东明, 王建刚, 等. B4C增强铝基复合材料力学性能有限元模拟[J]. 复合材料学报, 2016, 33(10): 2253-2260. DOI: 10.13801/j.cnki.fhclxb.20160112.006
WANG Chuanxin, LIU Dongming, WANG Jiangang, et al. Simulation of mechanical behaviors of B4C reinforced Al matrix composites by finite element[J]. Acta Materiae Compositae Sinica, 2016, 33(10): 2253-2260. DOI: 10.13801/j.cnki.fhclxb.20160112.006
Citation: WANG Chuanxin, LIU Dongming, WANG Jiangang, et al. Simulation of mechanical behaviors of B4C reinforced Al matrix composites by finite element[J]. Acta Materiae Compositae Sinica, 2016, 33(10): 2253-2260. DOI: 10.13801/j.cnki.fhclxb.20160112.006

B4C增强铝基复合材料力学性能有限元模拟

基金项目: 山东省自然科学基金(ZR2014EEM010);亚稳材料国家重点实验室(燕山大学)开放课题(201507)
详细信息
    通讯作者:

    刘东明,博士,副教授,硕士生导师,研究方向为纳米金属材料、金属基复合材料。E-mail:dongmingliu@sdu.edu.cn

  • 中图分类号: TB330.1

Simulation of mechanical behaviors of B4C reinforced Al matrix composites by finite element

  • 摘要: 建立了颗粒增强铝基复合材料的轴对称单胞模型,并通过有限元方法模拟了B4C颗粒增强5083铝基复合材料的力学性能和微观应力分布。结果表明,模拟结果与实验结果吻合较好,模拟椭球体颗粒增强复合材料的抗拉强度为485 MPa,而实验值为477 MPa,相对误差仅为1.7%。颗粒形状对复合材料微观应力场有很大影响:圆柱体颗粒的尖角处容易造成应力集中,而球体颗粒界面处应力分布较为均匀。在一定范围内,复合材料的弹性模量和抗拉强度随着B4C颗粒体积分数的增加而增加。在颗粒体积分数不变的情况下,不同长径比的颗粒沿复合材料受力方向定向排列时,颗粒的长径比越大,复合材料的弹性模量、强度等力学性能也越高。
    Abstract: An axisymmetric unit cell model of particle reinforced Al matrix composites was established, and the mechanical behaviors and micro-stress distribution of B4C particles reinforced Al5083 matrix composites were simulated by finite element method. The results show that the simulation result agrees well with the experimental result. The simulated tensile stress of spheroidicity particle reinforced composites is 485 MPa, while the experimental value is 477 MPa, indicating a relative error as low as 1.7%. Particle shapes have a significant influence on the micro-stress field of composites: the sharp edge of cylindrical particle leads to a stress concentration easily, while the spherical particle results in a relatively uniform stress distribution at the interface. Elastic modulus as well as tensile strength of the composites increase with the increase of volume fraction for B4C particle in a certain range. In the case of constant particle volume fraction, when the particles with different aspect ratios are aligned along the load direction, the larger the aspect ratio of particles, the higher the elastic modulus and tensile strength of composites.
  • 期刊类型引用(7)

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    4. 郑阳升,杨伟苓,郑顺奇,陈刚,史秀梅,邢文芳. 颗粒增强复合材料结构的有限元建模研究现状. 兵器材料科学与工程. 2018(04): 97-102 . 百度学术
    5. 苏杰,李亚智,张代龙,杨帆,束一秀,段敏鸽. 原位自生TiB_2颗粒增强2024-T4铝基复合材料断裂行为数值模拟. 复合材料学报. 2018(01): 132-141 . 本站查看
    6. 刘瑞峰,王文先,陈洪胜,刘芳芳. 基于SPS法B_4C/6061Al中子吸收复合材料组织及性能. 复合材料学报. 2018(02): 364-370 . 本站查看
    7. 吴丽娅,成小乐,胥光申,祁志旭. 温度对B_4C_p/Al基复合材料挤压的影响. 纺织高校基础科学学报. 2018(04): 423-429 . 百度学术

    其他类型引用(9)

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  • 被引次数: 16
出版历程
  • 收稿日期:  2015-09-23
  • 修回日期:  2015-12-13
  • 刊出日期:  2016-10-14

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