局部凹陷 meaning in Chinese
local dent
Examples
- The cause is that during the course of local dent , a large amount of energy is dissipated at the moment of impact
主要是由于局部凹陷在冲击瞬时就消耗了大量能量的缘故。 - It can be observed from experiment that the final whole deformations of the tubes take on the shapes of " v " , and " w " in certain condition . the local dents of the tubes are obvious . the critical velocities and plugging modes of penetrations can be obtained
从实验中可以观察到：管的整体残余变形为“ v ”形，在一定条件下，还可能为“ w ”形；有明显的局部凹陷，可以得到穿透时的临界速度，其穿透破坏形式为冲塞型。 - It can be seen from the deformation courses of the tubes that the local dents firstly occur at the beginning of impact . with the growth of the dents , the stiffness decreases , and the rigid - body translations and the whole deformations take place . the initial kinetic energy of the missile decreases rapidly to approximate zero during the course of impact , and the energy is transferred to internal energy and kinetic energy of the tube
同时，也得到了一些实验中没有观察到的现象：从模拟的管梁的变形历程可以看出，在冲击瞬时，管梁先发生局部凹陷，随着局部凹陷的加大，管梁的抗弯刚度减小，然后太原理工大学硕士学位论文刚体平动和整体变形发生，而且速度越大，这种现象越明显;子弹的入射动能在撞击过程中急剧减小，撞击结束后减小到可以忽略不计。