Under internal blast loading,the response of a beam or plate is highly correlated with the phenomenon of saturated impulse,which governs the deflection of the structure.This paper aims to investigate the phenomenon of...Under internal blast loading,the response of a beam or plate is highly correlated with the phenomenon of saturated impulse,which governs the deflection of the structure.This paper aims to investigate the phenomenon of saturated impulse for fully clamped rectangular plates subjected to internal blast loading.Based on the rigid,perfectly plastic assumption,the relationship between saturation duration and saturation deflection is derived.Influences of the peak shock wave,the duration of shock wave and the peak quasi-static pressure loading on saturation duration and saturation deflection are discussed.It is found that there is a critical duration for the internal blast impulse to reach saturation,and beyond this duration,the deflection of plate will no longer increase as the loading increases further.The saturation deflection and saturation duration both exhibit regular variation patterns with the changes of the dimensionless peak shock wave,the duration of shock wave and the peak quasi-static pressure loading.展开更多
From the perspective of theoretical analysis,based on the annotation of ancient doctors on the theory of"acting according to time,"this article puts forward the view of "time";that is,the impact of...From the perspective of theoretical analysis,based on the annotation of ancient doctors on the theory of"acting according to time,"this article puts forward the view of "time";that is,the impact of the social environment on the occurrence and development of diseases.In addition,it points out that the characteristics of modem diseases are of"multiple heat syndromes and multiple repletion pattern."Based on this characteristic,the use of heat-clearing drugs in the clinical stage would have a good eflect.It has been suggested that contemporary doctors should not only inherit the theories from predecessors,but also think diligently and innovate bravely along with the current environment in order to ensure that the theories ofTCM are constantly full of vitality to better serve the clinical aspect.展开更多
基金The authors would like to thank the support from the National Natural Science Foundation of China under Grant No.11802030.
文摘Under internal blast loading,the response of a beam or plate is highly correlated with the phenomenon of saturated impulse,which governs the deflection of the structure.This paper aims to investigate the phenomenon of saturated impulse for fully clamped rectangular plates subjected to internal blast loading.Based on the rigid,perfectly plastic assumption,the relationship between saturation duration and saturation deflection is derived.Influences of the peak shock wave,the duration of shock wave and the peak quasi-static pressure loading on saturation duration and saturation deflection are discussed.It is found that there is a critical duration for the internal blast impulse to reach saturation,and beyond this duration,the deflection of plate will no longer increase as the loading increases further.The saturation deflection and saturation duration both exhibit regular variation patterns with the changes of the dimensionless peak shock wave,the duration of shock wave and the peak quasi-static pressure loading.
文摘From the perspective of theoretical analysis,based on the annotation of ancient doctors on the theory of"acting according to time,"this article puts forward the view of "time";that is,the impact of the social environment on the occurrence and development of diseases.In addition,it points out that the characteristics of modem diseases are of"multiple heat syndromes and multiple repletion pattern."Based on this characteristic,the use of heat-clearing drugs in the clinical stage would have a good eflect.It has been suggested that contemporary doctors should not only inherit the theories from predecessors,but also think diligently and innovate bravely along with the current environment in order to ensure that the theories ofTCM are constantly full of vitality to better serve the clinical aspect.
