结构化 PrintCast 互穿复合材料在拉伸状态下的能量吸收

IF 10.3 1区工程技术 Q1 ENGINEERING, MANUFACTURING

Additive manufacturing Pub Date : 2025-04-05 DOI:10.1016/j.addma.2025.104769

Abdel R. Moustafa , Jiahao Cheng , Jason P. Allen , Xiaohua Hu , Amit Shyam , Ke An , Matthew Frost , Yan Chen , Derek A. Splitter

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引用次数: 0

摘要

增材制造（AM）金属-金属复合材料由printcast 316 L奥氏体不锈钢晶格结构和A356铸造合金组成，最近被开发用于高能量吸收系统，具有从静态承载到动态爆炸遏制结构的潜在应用。随着晶格体积分数的增加，该体系具有独特的力学行为，表现出从局域破坏到非局域破坏的转变和能量吸收能力的急剧增加。在这项工作中，PrintCast A356/316 L复合材料拉伸试样的晶格体积分数范围为20 %至50 %，以捕捉这种行为的范围。有限元模拟支持中子衍射测量应力状态。结果表明，在受拉状态下，增强材料处于受拉状态，而基体支撑材料处于受压状态，这一信息对过渡到去局部化破坏提供了重要的见解。此外，模拟结果进一步揭示了界面键合（或缺乏键合）如何影响PrintCast复合材料的能量吸收能力。

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Energy absorption of architectured PrintCast interpenetrating composites in tension

Additively manufactured (AM) metal-metal composites consisting of PrintCasted 316 L austenitic stainless-steel lattice structures infiltrated with A356 casting alloy, have recently been developed for use in high energy absorption systems with potential applications ranging from static load bearing to dynamic blast containment structures. This system has a unique mechanical behavior as the volume fraction of lattice increases showing a transition from localized to de-localized failure and dramatic increase in energy absorption capability. In this work, PrintCast A356/316 L composite tensile specimens were produced with lattice volume fractions ranging from 20 % to 50 % to capture the range of this behavior. Finite element simulations support neutron diffraction measurements of stress state. Results illustrate that in tension, the reinforcement material is in tension while the matrix support material is in compression, information offering significant insight into the transition to de-localized failure. Moreover, the simulation results provide further insight into how interfacial bonding (or lack of bonding) affects the energy absorption capabilities of the PrintCast composites.

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来源期刊

Additive manufacturing Materials Science-General Materials Science

CiteScore

19.80

自引率

12.70%

发文量

648

审稿时长

35 days

期刊介绍： Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects. The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.