Explosion experiments of cyclotetramethylene tetranitramine (HMX) based layered thermobaric explosive (TBX) were carried out in an explosion chamber. The layered TBX was prepared by combination of both press and cast procedures, and the shock overpressure, quasi‐static pressure (QSP), heat flux, and oxygen concentration data were obtained. The results show that the corresponding parameters of TBX are significantly larger compared with TNT, which indicates obvious thermobaric effects of TBX. To correctly evaluate the performance of the layered TBX, the TNT equivalent model based on the overpressure and QSP of TBX was established, which could reflect the two stages of detonation and post combustion effects of the TBX.

中文翻译：

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爆炸室内分层高压炸药的实验性能评估

在爆炸室内进行了基于环四亚甲基四硝胺（HMX）的分层热压炸药（TBX）的爆炸实验。TBX的分层是通过压铸和铸造两种工艺组合制备的，并获得了冲击超压，准静态压力（QSP），热通量和氧浓度数据。结果表明，与TNT相比，TBX的相应参数明显更大，这表明TBX具有明显的热压效应。为了正确评估层状TBX的性能，建立了基于TBX超压和QSP的TNT等效模型，该模型可以反映TBX的爆轰和后燃烧效应两个阶段。