Hargreaves A S
J Oral Rehabil. 1983 Mar;10(2):137-51. doi: 10.1111/j.1365-2842.1983.tb00108.x.
Mechanisms of fatigue failure in polymers and the aims of fatigue testing have been examined, and factors affecting testing summarized. In the light of available work in several fields, parameters have been suggested for realistic flexural fatigue testing of denture base resins. A testing machine has been developed, with which the changes in properties of acrylic resin after fatigue in different environments can be studied. These changes developed gradually after 10(4) cycles and were related to the development of bulk crazing rather than to thermal effects. The amount of decay in the elastic modulus was not such that the material could have been said to have "failed".
已对聚合物疲劳失效的机制和疲劳测试的目的进行了研究，并总结了影响测试的因素。根据多个领域的现有研究成果，提出了用于义齿基托树脂实际弯曲疲劳测试的参数。已开发出一种测试机，利用它可以研究丙烯酸树脂在不同环境中疲劳后性能的变化。这些变化在10⁴次循环后逐渐显现，并且与本体银纹的发展有关，而非热效应。弹性模量的衰减量并未达到可以说材料已经“失效”的程度。
