Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Compliance of a Compact Tension Test Specimen

소형인장시험편의 컴플라이언스에 관한 고찰

  • Published : 2000.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

For integrity evaluation of cracked or damaged structures, fracture toughness test results in ASTM are widely used. The fracture toughness values of the structures are used as an effective design criterion in nuclear plants and aircraft structures. Sometimes the difference of P-$\delta$ curve trend during the unloading /reloading cycle in the fracture toughness test using partial unloading compliance was observed. The phenomenon as a possible source of error in determining fracture toughness may be caused by the residual stress during unloading work-hardening and bucking of a specimen. Therefore, we evaluate the effect of bucking and compressive residual stress during the K-R and J-R testing using a finite element method.

Keywords

References

  1. ASTM E561-86, 1995, 'Standard Practice for R-curve Determination,' Annual Book of ASTM Standards, pp. 577-588
  2. ASTM E1152-87, 1995, 'Standard Test Methods for Determination J-R Curves,' Annual Book of ASTM Standards, pp. 763-773
  3. BS 7448, 1991, 'Fracture Mechanics Toughness Tests, Part 1. Method for Determination of $K_{1C}$ Critical CTOD and Critical J Values of Metallic Materials'
  4. JSME S001, 1992, '彈望性 破壞靭性直 試驗 $J_{1C}$ 方法'
  5. Anderson, T. L., 1995, 'Fracture Mechanics Fundamentals and Applications,' CRC Press, Inc., pp. 365-417
  6. Futato, R. J., Aadland, J. D., Van Der Sluys, W. A. and Lowe, A. L., 1985, 'A Sensitivity Study of the Unloading Compliance Single-specimen J-Test Technique,' ASTM STP 856, pp. 84-103
  7. Hollstein, T., Blauel, J.G. and Voss, B., 1985, 'On the Determination of Elastic-Plastic Fracture Material Parameters ; A Comparison of Different Test Methods,' ASTM STP 856, pp. 104-116
  8. Voss, B. and Mayville, R. A., 1985, 'The Use of the Partial Unloading Compliance Method for the Determination of $J_1-R$ Curves and $J_{1C}$,' ASTM STP 856, pp. 117-130
  9. 석창성, 최용식, 1992, 'J-R 곡선에서의 균열길이 감소현상에 관한 연구 (I),' 대한기계학회논문집 제16권 제6호, pp. 1115-1120
  10. 석창성, 윤병권, 2000, '인장-압축하중 하의 파괴저항 곡선의 감소현상 해석,' 대한기계학회논문집, 제24권, 제2호, pp. 378-385
  11. Gerard, A. Maugin, 1992, 'The Thermomechanics of Plasticity and Fracture,' Cambridge University Press, pp. 1-29