2. Compared the current samples with the standard sample from DIN912, the different point is the screw thread are more
longness than standard sample.
当前的样品和标准样品DIN912相比,不同之处是螺纹的长度大于标准样品。
3. The less-sheared regions caused by friction resistance are observed at lower and top parts, which are symmetric and gradually extend to the inner part along the sample
longness.
受摩擦阻力的影响,试样顶部和底部均出现了滞变区,该区域呈轴对称分布且沿试样长度方向逐渐向试样芯部扩展;