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首页> 外文期刊>Engineering Fracture Mechanics >Effect of temperature on the fracture behavior of polyamide 12 and glass-filled polyamide 12 processed by selective laser sintering
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Effect of temperature on the fracture behavior of polyamide 12 and glass-filled polyamide 12 processed by selective laser sintering

机译：温度对通过选择性激光烧结加工的聚酰胺12和玻璃填充聚酰胺12的裂缝行为的影响

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摘要

The influence of the orientation and of the temperature on the mechanical properties of the polyamide 12 (PA12) and the polyamide 12 reinforced with glass beads processed via Selective Laser Sintering was analyzed. Tensile and fracture tests were performed at -50 degrees C, 23 degrees C and 50 degrees C with applied load perpendicular and parallel to the layered structure. The fracture resistance of PA12 was higher than that of the composite due to the poor adhesion of the glass beads to the matrix. The fracture behavior of the composite was unaffected by the temperature and the orientation. J(IC) values of PA12 were similar at -50 degrees C and at 23 degrees C and much lower than at 50 degrees C. The anisotropy was relevant during the stable crack growth.
机译：分析了取向和温度对聚酰胺12（PA12）的力学性质的影响，并用通过选择性激光烧结加工的玻璃珠加强的聚酰胺12的影响。 在-50℃，23℃和50℃下进行拉伸和断裂试验，垂直于层状结构垂直且平行于分层结构。 由于玻璃珠与基质的粘附性差，PA12的断裂抗性高于复合材料的裂缝抗性。 复合材料的断裂行为不受温度和取向的影响。 PA12的J（IC）值在-50℃和23℃下相似，远低于50℃。各向异性在稳定的裂纹生长期间是相关的。

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