摘要
针对复合材料仿骨缝齿接结构模型表述复杂性问题,基于MATLAB与Python语言对有限元分析软件ABAQUS进行二次开发,提出了复合材料齿接结构的参数化构建方法。并以此为基础,初步研究了齿顶角、基线类型、层级与结构力学性能之间的关系。研究结果表明,在拉伸载荷作用下,具有小齿顶角度、复杂基线特性、高层级特性的齿接结构可以表现出更好的力学性能。通过本文工作,实现了齿接结构的参数化构建,初步揭示了齿接结构承载能力、损伤机理和几何形貌之间的关系。
In this paper, we developed a parametric modeling framework for composite bionic suture joint structures through MATLAB and ABAQUS secondary development based on Python language. It shows the ca- pability in describing the complicated suture joint geometry with different types of hierarchy and automatic gen- eration of finite element mesh for mechanical modeling. Furthermore, interactions between geometric parame- ters （tooth angle, baseline type, and hierarchy） and structure performance are analyzed. The numerical re- sults show that the bionic suture joint structure has better structural damage tolerance with the presence of a lower tooth angle, a sin curve baseline and a higher hierarchy. Through this work, parametric modeling of composite suture joint structure is realized, and the interaction among mechanical strength, damage mecha- nism and suture geometries is investigated, which provides meaningful guidelines for the design and optimiza- tion of novel high performance composite joint structures.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2016年第12期2762-2768,共7页
Journal of Beijing University of Aeronautics and Astronautics
基金
国家自然科学基金(11502205)~~
关键词
仿骨缝齿接结构
参数化建模
有限元模型
复合材料
内聚力单元
bionic suture joint structure
parametric modeling
finite element model
composites
cohe-sive element
作者简介
毛伟男，硕士研究生。主要研究方向：复合材料结构设计。E-mail：maowei2010@mail．nwpu．edu．cn
王文智男，博士，讲师。主要研究方向：复合材料力学与结构设计。Tel．：029-88494855E-mail：wangwenzhi@nwpu．edu．cn
何利军男，硕士研究生。主要研究方向：复合材料结构设计。E-mail：2014200139@mail．nwpu．edu．cn
张超男，博士。主要研究方向：复合材料力学。E-mail：czl4@zips．uakron．edu
