| PMMA断口形态及其破坏机理 |
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| 引用本文： | 肖亮灿 李仲彰. PMMA断口形态及其破坏机理[J]. 高分子材料科学与工程, 1990, 6(4): 61-65 |
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| 作者姓名： | 肖亮灿 李仲彰 |
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| 作者单位： | 华南理工大学化机系(肖亮灿，李仲彰)，华南理工大学化机系(杜玲仪) |
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| 摘 要： | 本文通过对PMMA蠕变试件断口的SEM分析,把材料蠕变破坏过程中主裂纹的发展划分为三个阶段,提出了决定材料承载寿命的因素。
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| 关 键 词： | 有机玻璃 PMMA 断口 断裂 |
THE FRACTURE SURFACE MORPHOLOGY AND FRACTURE MECHANISM IN PMMA |
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| Xiao Liangcan,Li Zhongzhang and Du Lingyi. THE FRACTURE SURFACE MORPHOLOGY AND FRACTURE MECHANISM IN PMMA[J]. Polymer Materials Science & Engineering, 1990, 6(4): 61-65 |
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| Authors: | Xiao Liangcan Li Zhongzhang Du Lingyi |
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| Abstract: | The PMMA samples creep in the condition of singleaxial extension, the SEM has been used to examine the fracture surface characteristic. It is shown for the different stress levels that the propagation of the main crack in the creep can be divided into three steps, and a decisive factor on the loaded life has been presented. |
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| Keywords: | creep racze fracture mechanism. |
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