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本文研究了在轻量化车辆车身设计中使用高强度钢和铝合金的混合连接结构的疲劳性能。通过综合文献回顾和实验测试,我们分析了这种混合材料连接的优势和挑战,并探讨了其长期疲劳性能。研究应用了多种研究方法,包括材料疲劳试验和有限元分析,确定了影响疲劳性能的关键因素。实验结果表明,妥善的连接设计和表面处理能够显著提升结构的疲劳寿命。此外,本文提出了一些改善建议,如优化连接几何形状和采用先进的连接工艺,以进一步提高结构的耐久性。研究结果不仅为混合材料连接的设计提供了新的思路,也有助于推动轻量化车辆的未来发展。
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