【摘要】 本文研究了经过不同条件处理的ABS试样在单轴拉伸过程中的声发射现象,从中探讨聚合物材料的受力历史,温度突变,银纹的形成、扩展,加热试样使银纹消失,然后再形成、扩展直至最终断裂的整个过程与声发射的关系。提出了聚合物分子链的强烈松驰对声发射有贡献的观点。更多还原

【Abstract】 Acoustic emission of ABS sample treated under various conditions and in single—axle elongation was examined. The dependence of sound emission was examined on mechanic history, temperature jump, formation and extension of craze, disappearance when heating, reformation and reextension of craze before breaking finally.更多还原