Drummond J L, Miescke K J
University of Illinois at Chicago.
Dent Mater. 1991 Jan;7(1):25-9. doi: 10.1016/0109-5641(91)90022-q.
The modulus of rupture or flexural strength of dental composites aged in distilled water and saline solution or cyclic-fatigued to fracture in distilled water was analyzed by use of Weibull statistics. Two- and three-parameter Weibull models were applied to the data. For the case of the dental composites aged for five distinct time periods, the most appropriate model was a two-parameter Weibull model for each separate aging time. For the cyclic-fatigue data, a three-parameter accelerated failure time model with a Weibull baseline distribution and scale parameter, depending on the variable cycle, was appropriate.
采用威布尔统计分析了在蒸馏水和盐溶液中老化或在蒸馏水中循环疲劳至断裂的牙科复合材料的断裂模量或弯曲强度。将双参数和三参数威布尔模型应用于数据。对于在五个不同时间段老化的牙科复合材料，最合适的模型是每个单独老化时间的双参数威布尔模型。对于循环疲劳数据，具有威布尔基线分布和尺度参数（取决于可变循环）的三参数加速失效时间模型是合适的。
