The utilization of Finite Element Analysis (FEA) has emerged as a crucial methodology in the field of structural and elasticity analysis, facilitating researchers in their understanding of material responses to diverse thermal or structural loads. This study investigates the utilization of FEA to simulate the Impact characteristics of titanium composites, with specific emphasis on the Charpy impact test. The research utilizes the Abaqus Explicit software, which is widely recognized for its explicit dynamic analysis functionalities, to simulate high-speed and short-duration events such as impacts. The primary objective of this study is to examine the impact behavior of Ti–7Al–1mo/TiN composites fabricated through the spark plasma sintering technique. The impact behavior is simulated using FEA, wherein the shear failure model is utilized to replicate fracture phenomena. This paper examines the methodology employed in the FEA approach, with a particular focus on various factors including boundary conditions, explicit dynamic analysis settings, and material properties. The outcomes and analyses involve the examination of the von Mises stress distribution, displacement magnitude, and energy behavior of the models that were tested. Reinforcement of Ti–Al–Mo ternary alloy with TiN led to a progressive increase in maximum von Mises stress, reaching a peak at 3 wt% TiN. Conversely, displacement magnitude decreased with increasing TiN content, with CP-Ti and the unreinforced alloy exhibiting the highest values. Absorbed energy also declined with higher TiN levels. While models containing 5 and 7 wt% TiN displayed limited plastic deformation before fracture, composites with ≤ 3 wt% TiN maintained acceptable ductility despite enhanced strength and stiffness. The FEA methodology effectively simulates the Charpy impact characteristics of Ti–7Al–1Mo/TiN composites, thereby offering significant contributions to understanding their mechanical behaviors. These findings suggest that TiN reinforcement up to 3 wt% presents a promising strategy for improving the mechanical performance of Ti–Al–Mo alloys while minimizing the trade-off in toughness. This research emphasizes the inherent trade-off between toughness and strength/stiffness, suggesting the possibility of optimizing the composition of materials to suit particular applications. This study makes a valuable contribution to the expanding field of impact behavior research, demonstrating the potential of FEA, specifically utilizing Abaqus Explicit software, for enhancing material design and evaluation.

中文翻译：

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放电等离子烧结 Ti-Al-Mo/TiN 复合材料的冲击行为：使用 Abaqus CAE 的有限元分析方法

有限元分析 (FEA) 的使用已成为结构和弹性分析领域的重要方法，有助于研究人员了解材料对不同热或结构载荷的响应。本研究研究利用有限元分析来模拟钛复合材料的冲击特性，特别强调夏比冲击试验。该研究利用 Abaqus Explicit 软件来模拟高速、短持续时间的事件（例如撞击），该软件因其显式动态分析功能而受到广泛认可。本研究的主要目的是检查通过放电等离子烧结技术制造的 Ti-7Al-1mo/TiN 复合材料的冲击行为。使用有限元分析 (FEA) 模拟冲击行为，其中利用剪切破坏模型来复制断裂现象。本文研究了 FEA 方法中采用的方法，特别关注各种因素，包括边界条件、显式动态分析设置和材料属性。结果和分析包括检查所测试模型的冯米塞斯应力分布、位移大小和能量行为。用 TiN 增强 Ti-Al-Mo 三元合金导致最大 von Mises 应力逐渐增加，在 3 wt% TiN 时达到峰值。相反，位移幅度随着 TiN 含量的增加而降低，其中 CP-Ti 和非强化合金表现出最高值。随着 TiN 含量的增加，吸收的能量也随之下降。虽然含有 5 wt% 和 7 wt% TiN 的模型在断裂前表现出有限的塑性变形，但含有 ≤ 3 wt% TiN 的复合材料尽管强度和刚度有所提高，但仍保持了可接受的延展性。FEA 方法有效地模拟了 Ti-7Al-1Mo/TiN 复合材料的夏比冲击特性，从而为理解其机械行为做出了重大贡献。这些发现表明，TiN 强化至 3 wt% 是一种有前途的策略，可以提高 Ti-Al-Mo 合金的机械性能，同时最大限度地减少韧性的损失。这项研究强调了韧性和强度/刚度之间固有的权衡，提出了优化材料成分以适应特定应用的可能性。这项研究为扩大冲击行为研究领域做出了宝贵贡献，展示了 FEA（特别是利用 Abaqus Explicit 软件）在增强材料设计和评估方面的潜力。