Fatigue reliability research of composite material

In .this present work the fatigue reliability reseach field of field of composite material is divided in to four sections of the load and.condition.spectrum,Fatigue behavior,fatigue life predirection ,fatigue reliability analysis and design.From the papers on the investigation of these four sections it is found that many fatigue damage evolution equations and life prediction methods have been presentd on fatigue reliability of composite material. Whereas there is a lot of work to do in the research fields of the equivalent damage principle of composites.to draw up the load and condition spectrum fatigue reliability behavior,fatigue reliablity life prediction under actural and infinite life reliability design.