@Article{jrm.2022.022296,
AUTHOR = {Yueqiang Yu, Tingang Ma, Suling Wang, Minzheng Jiang, Yanling Guo, Ting Jiang, Shuaiqi Huang, Ziming Zheng, Bo Yan, Jiyuan Lv},
TITLE = {Simulation Analysis of Stress Field of Walnut Shell Composite Powder in Laser Additive Manufacturing Forming},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {11},
YEAR = {2023},
NUMBER = {1},
PAGES = {333--347},
URL = {http://www.techscience.com/jrm/v11n1/49229},
ISSN = {2164-6341},
ABSTRACT = {A calculation model of stress field in laser additive manufacturing of walnut shell composite powder (walnut
shell/Co-PES powder) was established. The DFLUX subroutine was used to implement the moveable application
of a double ellipsoid heat source by considering the mechanical properties varying with temperature. The stress
field was simulated by the sequential coupling method, and the experimental results were in good accordance with
the simulation results. In addition, the distribution and variation of stress and strain field were obtained in the
process of laser additive manufacturing of walnut shell composite powder. The displacement of laser additive
manufacturing walnut shell composite parts gradually decreased with increasing preheating temperature, decreasing laser power and increasing scanning speed. During the cooling process, the displacement of laser additive
manufacturing of walnut shell composite parts gradually increased with the increasing preheating temperature,
decreasing scanning speed and increasing laser power.},
DOI = {10.32604/jrm.2022.022296}
}