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New fracture characterization in polymer miniature specimens based on the essential work of fracture

机译:基于断裂必不可少的聚合物微型样品的新断裂表征

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The fracture characterization under plane-stress conditions in polymer sheets in recent decades has usually been done through the application of the essential work of fracture (EWF) method. However, when deeply double-edged, notched tensile standard specimens cannot be obtained, the use of alternative small pieces, such as prenotched miniature specimens, could be a viable solution. This is why we examined the new fracture characterization in polymer-prenotched small punch test (SPT) specimens in this study. With the results that we obtained, the feasibility of using prenotched SPT specimens for evaluating the EWF parameters and their correspondence with the results from standard specimens were established. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 132, 42837.
机译:近几十年来,聚合物片材在平面应力条件下的断裂特征通常是通过应用断裂的必不可少的方法(EWF)来完成的。但是,当无法获得双刃深,带缺口的拉伸标准试样时,可以使用替代的小件,例如带缺口的微型试样,是可行的解决方案。这就是为什么我们在这项研究中检查了聚合物预刻痕小冲孔试验(SPT)标本中新的断裂特征的原因。利用我们获得的结果,确定了使用预先开槽的SPT样品评估EWF参数的可行性以及它们与标准样品结果的对应性。 (c)2015 Wiley Periodicals,Inc. J. Appl。 Polym。科学2016,132,42837。

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