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Reference stress based J estimation equations applicable to cracked cylinders with a Wide range of radius-to thickness ratios: Part I- axial surface cracks
International Journal of Pressure Vessels and Piping ( IF 3 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.ijpvp.2020.104149 Jae-Min Gim , Ji-Su Shin , Yun-Jae Kim
International Journal of Pressure Vessels and Piping ( IF 3 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.ijpvp.2020.104149 Jae-Min Gim , Ji-Su Shin , Yun-Jae Kim
Abstract This paper compares systematic finite element results with reference stress based J estimation equations for pressurised axial surface and through-wall cracked cylinders with the radius-to-thickness ratio ranging from five up to seventy. It is found that, for the reference stress, the use of the Tresca limit pressure given in R6 provides satisfactory results for all cases considered; for both inner and external axial surface cracks; for both semi-elliptical and constant-depth axial surface cracks. These results are obtained for high strain hardening materials such as Type 304 stainless steel.
中文翻译:
基于参考应力的 J 估计方程适用于具有广泛半径与厚度比的裂纹圆柱体:第 I 部分 - 轴向表面裂纹
摘要 本文将系统有限元结果与基于参考应力的 J 估计方程进行比较,用于受压轴向表面和半径与厚度比范围为 5 到 70 的全壁裂纹圆柱体。发现对于参考应力,使用 R6 中给出的 Tresca 极限压力对所有考虑的情况都提供了令人满意的结果;内外轴向表面裂纹;适用于半椭圆形和等深轴向表面裂纹。这些结果是针对 304 型不锈钢等高应变硬化材料获得的。
更新日期:2020-09-01
中文翻译:
基于参考应力的 J 估计方程适用于具有广泛半径与厚度比的裂纹圆柱体:第 I 部分 - 轴向表面裂纹
摘要 本文将系统有限元结果与基于参考应力的 J 估计方程进行比较,用于受压轴向表面和半径与厚度比范围为 5 到 70 的全壁裂纹圆柱体。发现对于参考应力,使用 R6 中给出的 Tresca 极限压力对所有考虑的情况都提供了令人满意的结果;内外轴向表面裂纹;适用于半椭圆形和等深轴向表面裂纹。这些结果是针对 304 型不锈钢等高应变硬化材料获得的。