LS-DYNA is employed to research the local damage effect of tunnel lining subjected to conventional subsurface blast.

With the development of high and new technology,precision-guided weapon has become main weapon in modern wars,therefore the research on the effect of local damage by conventional weapons and the countermeasure have become important in protective engineering.

Recent terrorist activities have rekindled an interest in studying the local damage of reinforced concrete (RC) structures subjected to explosion or impact loads.

Preliminary analysis of the main influence factors on explosion cratering and structure spalling can provide a reference for the classification of explosion local damage and the design of local-damage-resisting structures.

Analysis of local failure of air-interlayer structure for blast resistance;

According to the test results, the single freedom system model is used to investigate the local failure of shelter plate of steel plate and steel fiber reinforced concrete.

According to the test results,the single freedom system model is used to investigate the local failure of shelter plate of steel plate and steel fiber reinforced concrete.

Random methods of gradual failure can truly reflect the generation, extention of partial failure, and effect to entire reliability.

Experimental investigation on contact explosion damage effect to fiber reinforced concrete slab with soil bedding;

The damage effects of gas explosion on the structures in excavation roadway is to study some factors such as the overpressure in the shock wave front,the action time of shock time,the position of structures,the shape and so on.

Based on cumulating damage model of concrete,the damage effect of explosive in concrete was simulated by the three dimensional simulating code MMIC3D under different buried depth and weight of dynamite(warhead),and considered including free surface.