国外文献 > 1.轴承 > 3. 材料与制造 > 制造工艺
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| 标 题： |
ANALYSIS OF THE LOAD BEARING CAPACITY OF CRACKED ADDITIVELY MANUFACTURED POLYMERS USING FAILURE ASSESSMENT DIAGRAMS
基于失效评估图对裂纹增材制造聚合物承载能力的分析 |
| 作 者： |
Sergio Cicero
Victor Martinez-Mata
Sergio Arrieta |
| 关键词： |
Failure assessment diagram [失效评估图]
ABS [ ABS]
PLA [ PLA]
Additive manufacturing [ 增材制造]
Fused deposition modelling [ 熔融沉积建模] |
| 出版年： |
2022 |
| 文集名： |
Materials and Fabrication
材料与制造 |
| 会议名： |
2022 ASME Pressure Vessels & Piping Conference (PVP 2022)
2022年ASME压力容器与管道会议（PVP 2022） |
| 届 次： |
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| 摘 要： |
Failure Assessment Diagrams (FADs) are, in practice, the main engineering tool for the analysis of structural components containing cracks. They are utilised in well-known structural integrity assessment procedures, such as BS7910 and API 579 1/ASME FFS 1, and their reliability has been proven by numerous laboratory tests and industrial applications. However, they have been defined and validated in metallic materials, so their application in other types of materials requires demonstrating that the different assumptions taken when analysing metals are also valid for the particular material (non-metallic) being analysed. At the same time, additive manufacturing (AM) is a growing technology that allows complex geometries to be fabricated through a quite simple process. Among the different AM techniques, fused deposition modelling (FDM) is one of the most widely used, and consists in the extrusion of heated feedstock plastic filaments through a nozzle tip. The resulting printed materials have quite specific characteristics and properties, which are highly dependent on the printing parameters (e.g., raster orientation, printing temperature, etc.) and on the resulting state of internal defects. This paper provides FAD analyses for two additively manufactured (FDM) polymers: ABS and PLA. The results show that the FAD methodology may be applied for these two particular polymers, as long as linear-elastic fracture toughness values are used.
失效评估图（FADs）在实际应用中是分析含裂纹结构部件的主要工程工具。它们被广泛应用于诸如BS7910和API 579/ASME FFS 1等知名的结构完整性评估方法中，其可靠性已通过大量实验室测试和工业应用得到验证。然而，这些图表最初仅针对金属材料定义并验证过，因此在其他类型材料上的应用时，必须证明用于分析金属的各类假设同样适用于所分析的具体材料（非金属）。与此同时，增材制造（AM）是一种日益发展的技术，能够通过较为简单的工艺制造出复杂的几何形状。在各种增材制造技术中，熔融沉积建模（FDM）是最常用的一种，其原理是将加热后的塑料丝材通过喷嘴挤出成型。所得到的印刷材料具有相当特定的特性和性能，这些特性在很大程度上取决于印刷参数（如栅格方向、打印温度等）以及内部缺陷的形成状态。本文针对两种增材制造（FDM）聚合物——ABS和PLA，提供了FAD分析。结果表明，只要采用线弹性断裂韧性值，该FAD方法便可应用于这两种特定聚合物。 |
| 中文内容为网络AI翻译，专业术语未必准确，仅供参考。 |
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