With the goal of ensuring the security of passengers for automotive industry, the present work addresses the temperature and impact speed envelope allowing ductile failure of plasticized PVC to be obtained. A database of about 250 test results has been constructed for various conditions at ten test temperatures, four impact speeds and two specimen geometries (with or without scoring). The desired ductile failure was characterized by the shape of the load versus deflection curve together with the fracture surface morphology obtained. The temperatures for obtaining ductile failure threshold (\(T_{\mathrm {dth}}\)) have been plotted as a function of the impact speeds for the two geometries. A gap of 20 \(^{\circ }\)C on the \(T_{\mathrm {dth}}\) was highlighted between the two geometries. Additionally, the impact strength of the plasticized PVC under study was estimated to be 0.25 kJ/m\(^2\).

为了确保汽车行业乘客的安全，目前的工作解决了温度和冲击速度范围，从而获得了增塑 PVC 的延展性破坏。在十个测试温度、四个冲击速度和两个试样几何形状（有或没有评分）的各种条件下，已经构建了一个包含大约 250 个测试结果的数据库。所需的延性破坏的特征在于载荷与挠度曲线的形状以及获得的断裂表面形态。用于获得延性破坏阈值 ( \(T_{\mathrm {dth}}\) ) 的温度已绘制为两种几何形状的冲击速度的函数。\(T_{\mathrm {dth}}\)上的20 \(^{\circ }\) C的差距 在两个几何图形之间突出显示。此外，所研究的增塑 PVC 的冲击强度估计为 0.25 kJ/m \(^2\)。