论文标题
缩放定律，以发作多层管的表面皱纹
Scaling law for the onset of the surface wrinkling of multilayer tubes
论文作者
论文摘要
表面皱纹是一种不稳定模式，在弯曲变形下通常在多种多层管中观察到它。当施加的弯曲程度超过临界值时，皱纹出现在管的内部，并释放出大量通过弯曲变形存储的平面内应变能。在目前的工作中，我们提出了一个简单的理论模型，用于评估多层管中皱纹的临界曲率和临界弯曲力矩，并在案例研究中将模型应用于碳纳米管。结果表明，无论层的数量和空心芯的大小如何，这两个临界特性之间存在反比例的关系。
Surface wrinkling is an instability mode that is often observed in a wide variety of multilayer tubes under bending deformation. When the degree of applied bending exceeds a critical value, wrinkles appear at the intrados of the tube and release a large amount of in-plane strain energy stored by bending deformation. In the present work, we propose a simple theoretical model for evaluating the critical curvature and critical bending moment for the occurrence of wrinkling in multilayer tubes and apply the model to carbon nanotubes in a case study. Results indicate an inverse proportional relationship between the two critical properties, which holds true regardless of the number of layers and the size of the hollow core.
