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研究了在高增压燃烧条件下固体推进剂／绝热层界面脱粘进一步扩展的诱导因素，获得了脱粘传播速度与燃烧室点火压强梯度之间的经验关系及临界压强梯度，提出了三种脱粘扩展模式。研究表明，当脱粘槽较窄并且点火增压梯度较大时，脱粘前沿扩展较快。这种由点火冲击和燃烧诱导的壳体结构变形及裂纹扩展现象是固体发动机在点火起动时发生爆炸事故的主要原因之一。
The inducing factors of further debonding of solid propellants / insulation layer under high-pressure combustion conditions were studied. The empirical relationship between the debonding propagation velocity and the ignition pressure gradient of the combustion chamber and the critical pressure gradient were obtained. Three Debonding expansion mode. Research shows that when the debonding tank is narrower and the ignition pressure gradient is larger, the debonding front expands more rapidly. This kind of structural deformation and crack propagation induced by ignition impact and combustion is one of the main reasons for the explosion of solid-state engine at ignition start-up.