Effect of Printing Temperature on Fatigue and Impact Performance of 3-D Printed Carbon Fiber Reinforced PLA Composites for Ankle Foot Orthotic Device

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, COMPOSITES

Mechanics of Composite Materials Pub Date : 2024-06-24 DOI:10.1007/s11029-024-10209-y

Divya Pandey, Ramesh Pandey, Ashutosh Mishra, Ravi Prakash Tewari

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Abstract

Carbon fiber reinforced-polylactic acid (CF-PLA) composites nowadays are widely researched alternative structural materials for their potential application in prosthetic and orthotic implants. The present work firstly consolidates the findings on the application of 3D printing in biomedical and allied fields. Fatigue life and impact strength of 3D printed CF-PLA test specimens were determined. The test specimens were fabricated through the fused deposition modeling (FDM) approach at two printing temperatures. The pronounced effect of printing temperature is characterized by the significant change in fatigue life and impact strength of the FDM specimen. The fatigue life at the printing temperature of 240°C was 2.7 times greater than that at 225°C, whereas the impact strength was greater by 5.93%. The microscopy findings revealed increased diffusion and a reduced number of ridges and pores at higher printing temperature testifying that printing temperature prominently controls the durability and impact response of FDM printed parts.

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打印温度对用于踝足矫形器的 3-D 打印碳纤维增强聚乳酸复合材料的疲劳和冲击性能的影响

如今，碳纤维增强聚乳酸（CF-PLA）复合材料因其在假肢和矫形植入物中的潜在应用而成为被广泛研究的替代结构材料。本研究首先巩固了三维打印在生物医学及相关领域的应用研究成果。本研究测定了 3D 打印 CF-PLA 试样的疲劳寿命和冲击强度。试样是在两种打印温度下通过熔融沉积成型（FDM）方法制造的。打印温度的明显影响表现在 FDM 试样的疲劳寿命和冲击强度发生了显著变化。打印温度为 240°C 时的疲劳寿命是 225°C 时的 2.7 倍，而冲击强度则提高了 5.93%。显微镜研究结果表明，在较高的印刷温度下，扩散增加，脊和孔的数量减少，这证明印刷温度在很大程度上控制着 FDM 印刷部件的耐久性和冲击响应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mechanics of Composite Materials 工程技术-材料科学：复合

CiteScore

2.90

自引率

17.60%

发文量

审稿时长

12 months

期刊介绍： Mechanics of Composite Materials is a peer-reviewed international journal that encourages publication of original experimental and theoretical research on the mechanical properties of composite materials and their constituents including, but not limited to: damage, failure, fatigue, and long-term strength; methods of optimum design of materials and structures; prediction of long-term properties and aging problems; nondestructive testing; mechanical aspects of technology; mechanics of nanocomposites; mechanics of biocomposites; composites in aerospace and wind-power engineering; composites in civil engineering and infrastructure and other composites applications.