一个在拉伸测试过程中测量温度的拟议系统
Marius Andrei Mihalache1, Vasile Merticaru1, Vasile Ermolai1
1Department of Machine Manufacturing Technology, Gheorghe Asachi Technical University of Iasi, 700050 Iasi, Romania.
Sensors (Basel, Switzerland)
|September 13, 2025
概括
这项研究将热图像与扫描电子显微镜 (SEM) 结合起来,在拉伸测试过程中量化3D打印聚合物的热力学行为. 研究结果揭示了裂时的温度波动,影响了材料的完整性,并提供了关于裂机制的见解.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 机械工程 机械工程
背景情况:
- 3D打印的聚合物在拉力测试中表现出复杂的热力学行为.
- 了解这些材料中的断裂力学需要分析相关的热现象.
- 当前的方法可能无法完全捕捉材料故障期间的现场热变化.
研究的目的:
- 开发和验证一个定制的设置,将热图成像与现场扫描电子显微镜 (SEM) 集成在一起,用于对3D打印的聚合物进行拉伸测试.
- 量化裂纹过程中的热力学行为和相关的热现象.
- 为了证明热量测量系统对由于打印参数而导致的机械响应变化的敏感性.
主要方法:
- 在拉伸测试期间将热图像与现场扫描电子显微镜 (SEM) 集成.
- 在实验设计 (DOE) 中使用差异分析 (ANOVA) 来分析因素和相互作用.
- 使用有限元法 (FEM) 来建模和确认温度分布.
- 进行实验室实验,使用3D打印的聚合物样本进行拉伸负荷.
主要成果:
- 热图成像成功地检测到样本断裂时的温度波动.
- 由于受控的打印参数变化导致机械响应的变化被确定.
- SEM分析提供了关于断裂模式的见解,与热数据相关联.
- FEM模拟证实了记录的热场数据.
结论:
- 定制设置提供了一种可靠的评估系统,用于在拉力测试期间量化3D打印聚合物的热力学行为.
- 这种方法为基于传感器的环境提供了一个有价值的替代方案,用于验证热量测量方法.
- 这些发现有助于更深入地了解增材制造的聚合物中的断裂力学和材料完整性.
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