复合数
拓扑优化
各向异性
韧性
材料科学
复合材料
3d打印
拓扑(电路)
弯曲
纤维
3D打印
断裂韧性
结构工程
工程类
电气工程
有限元法
物理
生物医学工程
量子力学
作者
Naruki Ichihara,Masahiro Ueda
标识
DOI:10.1016/j.compositesb.2023.110572
摘要
The toughness of structures is essential to prevent catastrophic failure. This study introduced a design framework to improve the toughness of 3D-printed carbon fiber-reinforced composite structures by local latticing utilizing the intermediate material fraction obtained in the topology optimization. The framework was based on anisotropic topology optimization considering material fraction and material orientation. The optimized results were de-homogenized by the phase field-based technique to determine the 3D printing path. Experimental validations were carried out on a three-point bending beam problem. As a result, it was shown that the framework endowed toughness for the 3D-printed carbon fiber-reinforced composite structure.
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