The experimental investigation of transpiration cooling on a blunt nosecone was implemented in this paper,it reveals the rules of the influence of blowing ratio,main flow temperature and Re number on the transpiration cooling wall temperature and cooling efficiency.

Combining the recently published hardness results for spherical indenter case and the Johnson's correlation for metal materials, the hardness solution form of elastic-plastic materials for the pyramidal indenter case about which a small curvature radius at tip is considered is derived.

Study on feasibility of conical head with half top angle>60°;

In this paper, two problems-the design of conical heads subjected to external pressure and stress intensity existing around opening are analyzed and discussed.

In this paper,the authors carried out stress analysis for knuckle (transitional section) of toriconical heads (conical heads with transitional section),proposed another rule design method based on membrane theory,which is contrasted with the rule design method in operation,for the knuckle of toriconical heads.