期刊文献+

表面裂纹弹塑性分析的线弹簧模型法 被引量:1

Estimates of Elastic-Plastic J Integral for Surface Cracked-Plates by the Inelastic Line-spring Model
下载PDF
导出
摘要 表面裂纹弹塑性分析的线弹簧模型法柴国钟,顾立成,洪起超,王勇(浙江工业大学机电工程学院杭州310032)摘要利用平面应变单边裂纹板在纯拉伸和纯弯曲加载下的弹塑性有限元结果,构造了其在拉伸和弯曲组合加载下的余能表式,在此基础上,导出了RambergOs... At first, the complementary energy for the single-edgecracked strip (SEC strip) undercombined tension and bending is constituted by the use of Shih's fully plastic solutions of theSEC strip under tension and bending. On the basis of this, the elastic-plastic stiffness and Jintegral for the SEC strip, with the material being following Ramberg-Osgood law, are derived. Then the elastic solution of Reissuer plate containing a through crack is corrected to beused for the elastic-plastic analysis of the line-spring model (LSM) by the introduction of anapproximate plastic correction. Although the correction adopted is very approximate, the numerical analysis of the surface-cracked plate shows that the results are in good agreement withthe ones of the three-dimensional elastic-plastic finite element method. Finally, the elasticplastic J integrals are evaluated by the present LSM for several surface-cracked plates.
出处 《浙江工业大学学报》 CAS 1996年第2期91-98,共8页 Journal of Zhejiang University of Technology
基金 浙江省自然科学基金 浙江省教委基金
关键词 表面裂纹 J积分 线弹簧模型 弹塑性 Surface crack J Integral Line-Spring model
  • 引文网络
  • 相关文献

同被引文献4

  • 1Kassir M K,Sih G C.Embedded elliptical cracks.Mechanics of Fracture,1975,(2):74.
  • 2Newman J C,Raju I S.Analysis of surface crack in finite plates under tension and bending loads,NASA TP-1578,1979.
  • 3Delale F,Erdogan F.Line-spring model for surface cracks in a Reissner plate.Int J Eng Science,1981,19:1 331~1 340.
  • 4曾昭景,戴树和.线弹簧模型与边界元法的耦合[J].南京化工学院学报,1990,12(3):18-22. 被引量:1

引证文献1

;
使用帮助 返回顶部