QuadDiametral型点阵结构力学特性研究
Study on the Mechanical Properties of QuadDiametal Lattice Structure
杨新俊 1张迪 2王世宇3
作者信息
- 1. 天津大学;江南大学机械工程学院;浙江巨马文旅股份有限公司
- 2. 江南大学机械工程学院
- 3. 天津大学
- 折叠
摘要
为了明确QuadDiametral型点阵结构的弹性模量影响因素,以梁单元为基础,结合经典静力学理论进行分析,建立该单元结构弹性模量的本构方程模型.采用选择性区域透光技术进行3D打印固化,并通过试验与数值模拟相结合的方式对理论模型进行验证.结果表明,点阵的弹性模量与材料的杨氏模量E和夹角α成正比关系,与梁的长细比l/d成反比关系,仿真和试验结果与理论预测的误差均在8%以内,验证了理论模型的准确性.
Abstract
In order to clarify the influence of the elastic modulus of the QuadDiametric lattice structure,a constitutive equation model for the elastic modulus of the element structure was established based on beam elements and combined with classical statics theory for analysis.Selective area light transmission technology was used for 3D printing solidification,and the theoretical model was validated through a combination of experiments and numerical simulations.The results indicated that the elastic modulus of the lattice structure was directly proportional to the Young's modulus E and angle α of the material,and inversely proportional to the aspect ratio l/d of the beam.The error between simulation and experimental results and theoretical predictions was controlled within 8%,thus verifying the accuracy of the theoretical model.
关键词
点阵结构/轻量化/弹性模量/本构模型Key words
Lattice structure/Lightweight/Elastic modulus/Constitutive model引用本文复制引用
出版年
2024
NETL
NSTL
万方数据