http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Analysis of Elasto-Plastic Dynamic Behavior of Plates Subjected to Low Velocity Impact
Wook Dokko,Moon Saeng Kim 한국정밀공학회 2005 International Journal of Precision Engineering and Vol.6 No.1
In this study, a computer program is developed for analyzing the elasto-plastic dynamic behaviors of the plates subjected to line-loading by a low-velocity impactor. The equilibrium equation associated with the Hertzian contact law is formulated to evaluate the transient dynamic behavior of the impacted plates. Compared with an elastic analysis, the effects of material plasticity are considered. Consequently, in the case of elasto-plastic analysis, impulse decreases, displacements increase and contact duration time is longer than that of the elastic case for the same plate structures. And the time variation of the impacting load is not significant due to the plasticity except at the beginning of impact duration, and the induced stresses of plate are more realistic.