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首页> 外文期刊>Journal of Applied Polymer Science >TEMPERATURE AND FREQUENCY EFFECTS ON FATIGUE CRACK GROWTH IN ACRYLONITRILE-BUTADIENE-STYRENE (ABS)
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TEMPERATURE AND FREQUENCY EFFECTS ON FATIGUE CRACK GROWTH IN ACRYLONITRILE-BUTADIENE-STYRENE (ABS)

机译：温度和频率对丙烯腈-丁二烯-苯乙烯（ABS）疲劳裂纹扩展的影响

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摘要

Fatigue crack growth (FCG) in a commercial-grade acrylonitrile-butadiene-styrene (ABS) over the temperature and frequency ranges of 10-70 degrees C and 0.01-10 Hz was studied. A model for the effects of temperature and frequency on the FCG rate was refined. The refined model is shown to accurately predict FCG rates in ABS. Three different types of fatigue fracture surfaces have been found. The first type is characterized by discontinuous growth bands; the second, by a rather smooth surface; and the last, by a rough surface relative to the second. The transition between the first and second types was found to be dependent on temperature and frequency as well, whereas the transition between the second and last types was found to be only dependent on temperature. These findings are discussed in relation to crazing. The apparent activation energy (Delta H-th) was evaluated for both the first and second types to be 19.22 kJ/mol. (C) 1995 John Wiley and Sons, Inc. [References: 16]
机译：研究了商业级丙烯腈-丁二烯-苯乙烯（ABS）在10-70摄氏度和0.01-10 Hz的温度和频率范围内的疲劳裂纹扩展（FCG）。改进了温度和频率对FCG速率的影响模型。精炼模型显示可以准确预测ABS中的FCG率。已经发现三种不同类型的疲劳断裂面。第一种是生长带不连续。第二，表面相当光滑;最后一个相对于第二个表面粗糙。发现第一类型和第二类型之间的过渡也取决于温度和频率，而第二类型和最后类型之间的过渡也仅取决于温度。讨论了与开裂有关的这些发现。对于第一类型和第二类型，表观活化能（ΔH-th）均被评估为19.22kJ / mol。 （C）1995 John Wiley and Sons，Inc. [参考：16]

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