Research on precise collision detection between deformable objects

For a long time force feedback is limited to rigid objects, force rendering of deformable object has more been concerned because of its practicability and realistic meanings.

Especially, the algorithm is suitable for deformable objects, can approximately simulate two-side refraction and can also be simply combined with shadow mapping algorithm, meanwhile the scale of virtual scene has little effect on the algorithm efficiency.

A discrete element model for the deformable for the deformable bodies was built according to the dynamic equation and the model decomposition Based on the fundamental principle of discrete element method, the contact model was selected and the corresponding theoretical formula deduced.

2-D object morphing is the process of continuously transformation one object into another,which is widely studied in computer animation,industrial modeling design,visualization in scientific computing and film stunt etc,and has great signification.

An analytical model is established to describe the complex behavior of ceramic/metal armor under the impact of a deformable projectile, which takes three aspects into account: the mushroom deformation of the projectile, the fragments of the ceramic tile, and the formation and change of ceramic conoid and the deformation of metal backup plate.

A new analytical model was established to describe the complex behavior of ceramic/metal armor under impact of deformable projectile by assuming some hypotheses.