Assuming the occurrence of impact between the isolated structure and retaining walls or adjacent structures during earthquakes,the study took the impaction stiffness,the superstructure stiffness,the mechanical properties of the bearing,the distance gap.

Study of drop hammer impact sensitivity for big-bill explosives;

Effect of coating method of polymer ε-HNIW on impact sensitivity of different samples;

A study on the interface action between RDX and desensitizers and related effects on impact sensitivity;

Pondering Deep Impact s Collision with Comet Tempel 1;

What is proved by the success of deep impact mission to Comet Tempel-Ι is that the technical problems of this space test are similar to the USA space weapon test.

Aiming to meteorite impact affair of Cangshan,the popular nonlinear program ANSYS/LS-DYNA is used to analyze how the change of impact velocity affect the emergence,development and evolvement of the impact deformation field of meteorite.

The impact velocity was 6.

The micro-hardness analysis indicates that the hardness near the interface is higher and each welding interface is approximate,concluding that the impact velocity of each layer is similar.