爆炸冲击波参数薄膜测试法研究
发布时间：2018-08-23 21:34
【摘要】：为可靠获取爆炸冲击波超压参数,设计一种铝箔薄膜结构进行实验。通过控制材料状态、结构频率特性等参数,使其满足一定毁伤准则,建立力学模型对其进行分析。利用激波管装置对薄膜变形进行标定,并将激波反射载荷转换为入射压,采用最小二乘法进行线性拟合,得到薄膜最大变形挠度与激波入射压峰值之间关系。结果表明,可通过铝箔薄膜最大变形挠度反映爆炸场中0.05~0.35 MPa范围内的入射冲击波超压,为冲击波测试工程应用提供新的途径。
[Abstract]:In order to obtain the explosion shock wave overpressure parameters, an aluminum foil film structure was designed. By controlling the parameters of material state and structure frequency characteristic, the damage criterion is satisfied, and the mechanical model is established to analyze it. The film deformation was calibrated by shock tube device, and the shock wave reflection load was converted into incident pressure. The linear fitting was carried out by using the least square method. The relationship between the maximum deformation deflection of the film and the peak incident pressure of the shock wave was obtained. The results show that the maximum deformation deflection of the aluminum foil film can reflect the overpressure of the incident shock wave in the range of 0. 05 ~ 0. 35 MPa in the explosion field, which provides a new way for the engineering application of shock wave testing.
【作者单位】： 西安近代化学研究所;南京理工大学机械工程学院;
【基金】：国家自然科学基金(11372143)
【分类号】：TJ01;O384
本文编号：2199988
[Abstract]:In order to obtain the explosion shock wave overpressure parameters, an aluminum foil film structure was designed. By controlling the parameters of material state and structure frequency characteristic, the damage criterion is satisfied, and the mechanical model is established to analyze it. The film deformation was calibrated by shock tube device, and the shock wave reflection load was converted into incident pressure. The linear fitting was carried out by using the least square method. The relationship between the maximum deformation deflection of the film and the peak incident pressure of the shock wave was obtained. The results show that the maximum deformation deflection of the aluminum foil film can reflect the overpressure of the incident shock wave in the range of 0. 05 ~ 0. 35 MPa in the explosion field, which provides a new way for the engineering application of shock wave testing.
【作者单位】： 西安近代化学研究所;南京理工大学机械工程学院;
【基金】：国家自然科学基金(11372143)
【分类号】：TJ01;O384
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