An experimental study of the heat generated in the plastic region of a running crack in different polymeric materials
An experimental study of the heat generated in the plastic region of a running crack in different polymeric materials
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不同聚合物材料中运行裂纹塑性区域产生热量的实验研究
DOI：
10.1016/0013-7944(73)90021-0
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发表时间：
1973
影响因子：
5.4
通讯作者：
W. Döll
中科院分区：
文献类型：
--
作者：
W. Döll
用热电偶测量了聚合物材料快速裂纹塑性区的热输出。研究了四种不同分子量的聚甲基丙烯酸甲酯材料。热输出随分子质量和裂纹速度的增加而增加。这些结果被Irwin和Dugdale开发的塑性区尺寸模型合理化了。
Heat outputs from plastic zones of fast running cracks in polymeric materials have been measured by means of thermocouples. Polymethylmethacrylate materials of four different molecular weights were investigated. It was found that heat outputs increased with molecular weight and with crack velocity. These results are rationalized by the plastic zone size models developed by Irwin and Dugdale.