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CRACK RESISTANCE BEHAVIOR OF POLYVINYLCHLORIDE

机译:聚氯乙烯的抗裂性能

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The effects of specimen dimension (thickness, width) and specimen configuration (SENB, CT), as well as test conditions (crosshead speed, temperature), over a range of crosshead speeds from 0.01 to 100 mm/min and temperatures from -40 to 60 degrees C, on the crack growth resistance behavior were investigated in a commercial amorphous thermoplastic polyvinylchloride (PVC)using the J-integral and crack opening displacement (GOD) concepts. With the combined application of these two different fracture mechanics parameters, more detailed information on fracture processes can be obtained. The relationship between deformation mechanisms and fracture toughness was discussed through a comparative analysis of J versus aa and COD versus aa resistance curves. (C) 1997 John Wiley & Sons, Inc. [References: 25]
机译:在0.01到100 mm / min的十字头速度和-40到200℃的温度范围内,试样尺寸(厚度,宽度)和试样形状(SENB,CT)以及测试条件(十字头速度,温度)的影响使用J积分和裂纹开口位移(GOD)概念,在商用无定形热塑性聚氯乙烯(PVC)中研究了60摄氏度时的抗裂纹扩展性能。结合应用这两种不同的断裂力学参数,可以获得有关断裂过程的更详细的信息。通过对J与aa以及COD与aa电阻曲线的比较分析,讨论了变形机理与断裂韧性之间的关系。 (C)1997 John Wiley&Sons,Inc. [参考:25]

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