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选用4mm 厚的聚丙烯板作为实验材料，按国际标准ISO 527-2 加工成适用于单轴拉伸的哑铃型试样和适用于纳米压入的小方块试样。通过不同应力水平下的单轴拉伸蠕变实验，发现测定的蠕变柔量随应力水平增加而增加，证实聚丙烯为非线性黏弹性材料。
非线黏弹聚丙烯的纳米压入蠕变行为
【摘 要】
：
选用4mm 厚的聚丙烯板作为实验材料，按国际标准ISO 527-2 加工成适用于单轴拉伸的哑铃型试样和适用于纳米压入的小方块试样。通过不同应力水平下的单轴拉伸蠕变实验，发现测
【机 构】
：
浙江工业大学机械工程学院,310014
【出 处】
：
第十四届全国实验力学学术会议
【发表日期】
：
2015年7期
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