Motta Dias M H, Jansen K M B, Luinge J W, Bersee H E N, Benedictus R
Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629HS Delft, The Netherlands.
Department of Design Engineering, Delft University of Technology, Landbergstraat 15, 2628CE Delft, The Netherlands.
Mech Time Depend Mater. 2016;20(2):245-262. doi: 10.1007/s11043-016-9294-z. Epub 2016 Feb 12.
The influence of fiber-matrix adhesion on the linear viscoelastic creep behavior of 'as received' and 'surface modified' carbon fibers (AR-CF and SM-CF, respectively) reinforced polyphenylene sulfide (PPS) composite materials was investigated. Short-term tensile creep tests were performed on ±45° specimens under six different isothermal conditions, 40, 50, 60, 65, 70 and 75 °C. Physical aging effects were evaluated on both systems using the short-term test method established by Struik. The results showed that the shapes of the curves were affected neither by physical aging nor by the test temperature, allowing then superposition to be made. A unified model was proposed with a single physical aging and temperature-dependent shift factor, . It was suggested that the surface treatment carried out in SM-CF/PPS had two major effects on the creep response of CF/PPS composites at a reference temperature of 40 °C: a lowering of the initial compliance of about 25 % and a slowing down of the creep response of about 1.1 decade.
研究了纤维-基体粘结对“原样”和“表面改性”碳纤维（分别为AR-CF和SM-CF）增强聚苯硫醚（PPS）复合材料线性粘弹性蠕变行为的影响。在±45°试样上于40、50、60、65、70和75℃六种不同等温条件下进行了短期拉伸蠕变试验。使用Struik建立的短期试验方法对两个体系的物理老化效应进行了评估。结果表明，曲线形状既不受物理老化影响，也不受试验温度影响，因此可以进行叠加。提出了一个具有单一物理老化和温度依赖性移位因子的统一模型。结果表明，在40℃参考温度下，SM-CF/PPS中进行的表面处理对CF/PPS复合材料的蠕变响应有两个主要影响：初始柔量降低约25%，蠕变响应减慢约1.1个数量级。
