CAJ | 학술논문

介绍了高聚物粘结炸药平面应变断裂韧度K1c的测试方法，对三种高聚物粘结炸药JOB-9003、JO-9159、JB-9014在常温下的K1c值进行了测试。测试结果分别为：0.24±0.01MPa*m1/2、0.17±0.01MPa*m1/2、0.37±0.01MPa*m1/2，显示出JB-9014具有相对较强的抗裂纹扩展能力。文章同时讨论了三种高聚物粘结炸药K1c值与其常规力学性能如拉伸应力应变曲线、蠕变曲线测试结果的一致性，还从材料组成的角度，分析揭示了JB-9014具有较大K1c值的主要原因在于JB-9014所用粘结剂为F2314。
개소료고취물점결작약평면응변단렬인도K1c적측시방법，대삼충고취물점결작약JOB-9003、JO-9159、JB-9014재상온하적K1c치진행료측시。측시결과분별위：0.24±0.01MPa*m1/2、0.17±0.01MPa*m1/2、0.37±0.01MPa*m1/2，현시출JB-9014구유상대교강적항렬문확전능력。문장동시토론료삼충고취물점결작약K1c치여기상규역학성능여랍신응력응변곡선、연변곡선측시결과적일치성，환종재료조성적각도，분석게시료JB-9014구유교대K1c치적주요원인재우JB-9014소용점결제위F2314。
The testing method of the plane strain fracture toughness K1cof high polymer bonded explosives is introduced. The method has been used to test three high polymer bonded explosives JOB-9003, JO-9159, and JB-9014, and their K1c values are 0.24±0.01MPa*m1/2、0.17±0.01MPa*m1/2、0.37±0.01MPa*m1/2 separately. The result shows that JB-9014 has better ability to resist flaw expanding. The paper also discusses the agreement between the K1c values of the three explosives and their conventional mechanical properties such as tensile strength, elongation, elastic modules, and creep fracture lifetime. Furthermore, concerning the composition, the paper reveals the main reason why JB-9014 has bigger K1c value is F2314 in JB-9014 as bonder.