高聚物粘结炸药热冲击过程中的声发射现象研究

基金项目:

中国工程物理研究院化工材料研究所所长基金资助项目(42102010103)

详细信息

Study on Acoustic Emission Phenomena of Plastic Bonded Explosive During Thermal Shock

摘要: 通过水浴冲击对高聚物粘结炸药(PBX)进行热冲击试验，由于材料在热冲击下产生的热应力来不及释放，从而导致材料内部产生裂纹。利用声发射仪器对热冲击过程进行监测，获得炸药材料在热冲击过程中的声发射信号。研究结果表明，声发射信号能够很好地反映热冲击过程中PBX损伤的产生和演变，并能够对损伤位置进行准确的定位，从而为研究材料的热冲击损伤机理和模式提供可靠的试验数据和理论依据。
- 声发射检测 /
- 热冲击 /
- 炸药 /
- 损伤
Abstract: Due to thermal stress, cracks will appear in plastic bonded explosive(PBX) in the experiment of thermal shock implemented by water-bathed method. With the application of acoustic emission testing device, thermal shock process was monitored by acoustic emission signal. The preliminary experiment showed that the acoustic signal brought in thermal shock not only reflected the different phase of cracks growth and located the damage, but also provided reliable experimental data and theoretical base for the study on mechanism and mode of PBX's thermal shock damage.
- Acoustic emission testing /
- Thermal shock /
- Explosive /
- Damage

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