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Mechanical property profiles of microstructures via asymptotic homogenization
Computers & Graphics ( IF 2.5 ) Pub Date : 2021-08-13 , DOI: 10.1016/j.cag.2021.07.021
Peiqing Liu 1 , An Liu 1 , Hao Peng 1 , Lihao Tian 1 , Jikai Liu 2 , Lin Lu 1
Affiliation  

Microstructure is the microscopic scale of a material, which can strongly influence physical properties, such as elasticity, strength, hardness, etc. Recently, many research efforts have been made to design the topology of microstructures carefully and govern their material properties according to the specific application of these materials in industrial practice. However, most works target specific properties that are tailored to particular applications. An integral image for one microstructure concerning multiple mechanical properties is in high demand. In this paper, we present a microstructure analyzer based on asymptotic homogenization. A mechanical property profile (MPP) is proposed to depict commonly used mechanical properties, including Young’s modulus, shear modulus, Poisson’s ratio, compressive strength, shear strength, the spatial distribution of effective Young’s modulus surface, and the worst-case von Mises stress distribution. Specifically, we utilize a radar chart to visualize the five scalar properties to help with an intuitive understanding of the microstructure. Moreover, we apply joints reinforcement on truss-based microstructures to enhance their strength. The results show that our analyzer and MPPs have the potential to help users understand and select the desired microstructure from alternatives and help them improve specific microstructure properties in microstructural design.



中文翻译:

通过渐近均质化获得微观结构的力学性能分布

微观结构是材料的微观尺度,它可以强烈影响物理性能,如弹性、强度、硬度等。 最近,许多研究努力仔细设计微观结构的拓扑结构,并根据具体情况控制其材料性能。这些材料在工业实践中的应用。但是,大多数作品都针对针对特定应用程序量身定制的特定属性。对涉及多种机械性能的一种微观结构的整体图像的需求量很大。在本文中,我们提出了一种基于渐近均质化的微观结构分析仪。提出了机械特性曲线 (MPP) 来描述常用的机械特性,包括杨氏模量、剪切模量、泊松比、压缩强度、剪切强度、有效杨氏模量表面的空间分布,以及最坏情况下的 von Mises 应力分布。具体来说,我们利用雷达图来可视化五个标量属性,以帮助直观地了解微观结构。此外,我们在基于桁架的微结构上应用节点加固以提高其强度。结果表明,我们的分析仪和 MPP 有可能帮助用户理解和从替代方案中选择所需的微观结构,并帮助他们改善微观结构设计中的特定微观结构特性。我们在基于桁架的微结构上应用节点加固以提高其强度。结果表明,我们的分析仪和 MPP 有可能帮助用户理解和从替代方案中选择所需的微观结构,并帮助他们改善微观结构设计中的特定微观结构特性。我们在基于桁架的微结构上应用节点加固以提高其强度。结果表明,我们的分析仪和 MPP 有可能帮助用户理解和从替代方案中选择所需的微观结构,并帮助他们改善微观结构设计中的特定微观结构特性。

更新日期:2021-08-29
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