CAJ | 학술논문

介绍了单试样柔度法的基本原理，并系统对比分析了该方法在不同断裂韧性测试技术中的应用情况。单试样柔度法是利用弹性柔度技术通过1个试样得到断裂韧性阻力曲线上多个点的试验方法。单试样柔度法理论基础强，计算过程复杂，涉及到测试柔度校正、裂纹扩展尺寸计算、断裂韧性公式推导等内容。健全和完善单试样柔度技术，有利于推动各种断裂韧性测试方法的发展，有利于更加便捷、准确的获得管线钢及环焊缝的断裂韧性值，对管线钢焊接技术的发展和环焊缝性能评估具有重要意义。
개소료단시양유도법적기본원리，병계통대비분석료해방법재불동단렬인성측시기술중적응용정황。단시양유도법시이용탄성유도기술통과1개시양득도단렬인성조력곡선상다개점적시험방법。단시양유도법이론기출강，계산과정복잡，섭급도측시유도교정、렬문확전척촌계산、단렬인성공식추도등내용。건전화완선단시양유도기술，유리우추동각충단렬인성측시방법적발전，유리우경가편첩、준학적획득관선강급배한봉적단렬인성치，대관선강한접기술적발전화배한봉성능평고구유중요의의。
It introduced the basic principle of the single sample compliance method in this article. Furthermore, the application of this method in different fracture toughness test was systematically contrasted and analyzed. The single sample compliance method used elastic compliance technology to obtain different data points in fracture toughness resistance curve by one test sample. This method is with strong theoretical foundation, the calculation process is complex, involves test compliance correction, crack propagation size calculation and fracture toughness formula derivation, etc. To improve and perfect the single sample compliance method is beneficial to promote the development of all kinds of fracture toughness test method, is conducive to conveniently and accurately obtain the fracture toughness value of pipeline steel and circumferential weld, which is with great significance for pipeline steel welding technology development and circumferential weld performance evaluation.