Structural Changes, Evolution of Damage Parameters and Crack Propagation Behaviour in Welded Plastic Pipes
Structural Changes, Evolution of Damage Parameters and Crack Propagation Behaviour in Welded Plastic Pipes
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焊接塑料管的结构变化、损伤参数的演变和裂纹扩展行为
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
W. Grellmann
中科院分区：
文献类型：
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作者：
R. Lach;P. Hutař;P. Veselý;E. Nezbedová;Z. Knésl;W. Grellmann
本文采用显微硬度计、激光拉伸仪和抗裂曲线等方法，对聚乙烯塑料管道焊接接头及接头外材料区的显微组织、局部力学性能和断裂行为进行了分析。在已被发现的机械基本性能和损伤动力学显然取决于焊接参数和附加缺口。
The microstructure as well as the local mechanical and fracture behaviour of welded joints in plastic pipes made form polyethylene and material zones outside of the welded joints have been analysed using recording microhardness testing, laser extensometry and crack resistance curve tests. In has been found that the mechanical basic properties and damage kinetics are clearly depending on the welding parameters and additional notching.