温度与加载频率对人工软骨弹簧材料损耗因子的影响分析OA

Dynamic mechanical tests were conducted on four types of artificial cartilage spring foam materials(ASF)with different densities to investigate the effects of density,temperature,and frequency on the loss factor of ASF specimens under varying environmental conditions.The results demonstrate that under high-temperature and high-frequency conditions,high-density ASF exhibits a significantly reduced loss factor.Moreover,higher density effectively suppresses the fluctuation of the loss factor with increasing frequency and temperature,leading to a flattened loss factor with frequency response curve and a diminished increase in the loss factor as frequency rises.Simultaneously,it reduces the sensitivity of the loss factor-temperature response to elevated temperatures.