The use of doubler reinforcement in delamination toughness testing

Composites Part A: Applied Science and Manufacturing

Volumn 35, Issue 11, 2004, Pages 1337-1344

  Reeder, James R ^a   Demarco, Kevin ^b   Whitley, Karen S ^a  

^a NASA LANGLEY RESEARCH CENTER   (United States)

^b NORTHROP GRUMMAN CORPORATION   (United States)

Author keywords

B. Delamination; B. Fracture toughness; Composite

Indexed keywords

DELAMINATION TOUGHNESS; END NOTCH FLEXURES (3ENF); FRACTURE TESTS; THIN FACESHEETS;

BENDING (DEFORMATION); CANTILEVER BEAMS; COMPRESSIVE STRESS; DATA REDUCTION; DELAMINATION; FIBERS; FRACTURE TOUGHNESS; LOADS (FORCES); MATHEMATICAL MODELS; PARAMETER ESTIMATION; PROBLEM SOLVING; STRENGTH OF MATERIALS; THICKNESS MEASUREMENT;

COMPOSITE MATERIALS;

EID: 4444283660     PISSN: 1359835X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.compositesa.2004.02.021     Document Type: Article

References (16)

1. Standard test method for mode I interlaminar fracture toughness of unidirectional fiber-reinforced polymer matrix composites, D 5528-94a. In: Annual book of ASTM standards 2001, vol. 15.03. ASTM International; 2001. p. 289-98.
2. O'Brien T.K., Martin R.H. Round robin testing for mode I interlaminar fracture toughness of composite materials. ASTM J Compos Technol Res. 15:1994;269-281.
3. Russell A.J. On the measurement of mode II interlaminar fracture energies. DREP Materials Report 82-0. 1982;Defense Research Establishment, Victoria.
4. Barrett J.D., Foschi R.O. Mode II Stress-intensity factors for cracked wood beams engineering fracture mechanics. 9:1977;371-378.
5. Martin R.H., Davidson B.D. Mode II fracture toughness evaluation using a four point bend end notched flexure test. Plast Rubber Compos. 28:1999;401-406.
6. Standard test method for mixed mode I-mode II interlaminar fracture toughness of unidirectional fiber reinforced polymer composite. In: Annual book of ASTM standards 2001, vol. 15.03. ASTM International; 2001. p. 392-403.
7. Reeder J.R., Crews J.H. Jr. Nonlinear analysis and redesign of the mixed-mode bending delamination test. NASA TM-102777. 1991;Langley Research Center.
8. Sharma S.K., Sankar B.V. Effects of through-the thickness stitching on impact and interlaminar fracture properties of textile graphite/epoxy laminates. NASA CR 190542. 1995.
9. Chen L., Ifju P.G., Sankar B.V., Wallace B. A modified DCB test for composite laminates with high-density stitches. Proceedings of the American Society For Composites - Fourteenth Technical Conference. 1999.
10. Ratcliffe J., Cantwell W.J. The centre notch flexure sandwich geometry for characterizing skin-core adhesion in thin-skinned sandwich structures. J Reinf Plast Compos. 20:2001;945-970.
11. Irwin G.R. Plasticity aspects of fracture mechanics. Fracture toughness testing and its applications, ASTM STP 381. 1965;. p. 84-113.
12. Williams J.G. The fracture mechanics of delamination tests. J Strain Anal Eng Des. 24:1989;207-214.
13. Wang Y., Williams J.G. Corrections for mode ii fracture toughness specimens of composite materials. Compos Sci Technol. 43:1992;251-256.
14. Reeder J.R. Jr, Crews J.H. Mixed-mode bending method for delamination testing. AIAA J. 28:1990;1270-1276.
15. Reeder J.R., Crews J.H. Jr. Redesign of the mixed-mode bending delamination test to reduce nonlinear effects. J Compos Technol Res. 14:(1):1992;12-19.
16. Reeder J.R. Refinements to the mixed-mode bending test for delamination toughness. Proceedings of The American Society for Composites - Fifteenth Technical Conference, College Station, TX. 2000.