爆炸与冲击2025，Vol.45Issue(1)：16-27,12.DOI:10.11883/bzycj-2023-0463
主体结构荷载可控的新型组合式防护结构(Ⅱ):影响因素及设计理念
A new composite protective structure based on the controllability of blast load on the structure layer(Ⅱ):influence factors and design concept
摘要
Abstract
Experimental and numerical investigations are carried out to clarify the influence of the thickness and strength of the foam concrete layer on the blast resistance of the new composite protective structure.The multilayer graded foam concrete is applied to adequately and rationally use the good wave dissipation performance of foam concrete.Then the advantage of the new composite protective structure is verified by comparison with the traditional layered structure with medium/coarse sand as the distribution layer.Finally,the design concept of composite protective structures based on the controllability of blast load on the structure layer is summarized.The foam concrete can be used as an energy control layer of the composite protective structure mainly due to its long yield plateau and low wave impedance.The blast load acting on the structure layer can be exactly equal to the yield strength of the foam concrete by choosing the appropriate thickness and strength(density)of the foam concrete layer,as well as the use of the multilayer graded foam concrete.Based on the controllable design concept of blast load on the structure layer in the new composite protective structure,the defects of traditional layered protective structure with medium/coarse sand as the distribution layer can be solved thoroughly.The results can provide an important reference for the design of protective structures against new earth penetration weapons.关键词
泡沫混凝土/组合式防护结构/可控设计/爆炸波/消波Key words
foam concrete/composite protective structure/controllable design/blast wave/wave dissipation分类
力学引用本文复制引用
方秦,高矗,孔祥振,杨亚..主体结构荷载可控的新型组合式防护结构(Ⅱ):影响因素及设计理念[J].爆炸与冲击,2025,45(1):16-27,12.基金项目
国家自然科学基金(52178515) （52178515）
