Numerical studies of the influence of textural gradients on the local stress concentrations around fibers in carbon/carbon composites

Communications in Numerical Methods in Engineering

Volumn 24, Issue 12, 2008, Pages 2194-2205

  Piat, Romana ^a   Tsukrov, Igor ^b   Böhlke, Thomas ^a   Bronzel, Norbert ^a   Shrinivasa, Tilottama ^a   Reznik, Boris ^a   Gerthsen, Dagmar ^a  

^a UNIVERSITY OF KARLSRUHE   (Germany)

^b University of New Hampshire   (United States)

Author keywords

Carbon carbon materials; Failure; Fibrous composites; Microstructure; Numerical modeling; Stress concentration

Indexed keywords

CARBON FIBER REINFORCED PLASTICS; CARBON FIBERS; CONCENTRATION (PROCESS); FAILURE ANALYSIS; MATERIALS; MECHANICAL PROPERTIES; METALLIC MATRIX COMPOSITES; MICROSTRUCTURE; STRESS CONCENTRATION; THICKNESS MEASUREMENT;

ANISOTROPIC MECHANICAL PROPERTIES; CARBON COMPOSITES; CARBON/CARBON MATERIALS; CIRCUMFERENTIAL DIRECTIONS; COATING MICROSTRUCTURES; ESHELBY THEORIES; FAILURE; FIBROUS COMPOSITES; FINITE ELEMENT MODELS; HYDROSTATIC COMPRESSIONS; LENGTH SCALE; LOCAL STRESS CONCENTRATIONS; MATERIAL PARAMETERS; MATERIAL PROPERTIES; MATRIXES; MICRO-METER SCALE; MODES OF FAILURES; NANO-METER SCALE; NUMERICAL MODELING; NUMERICAL RESULTS; NUMERICAL SIMULATIONS; NUMERICAL STUDIES; PYROLYTIC CARBONS; SHEAR LOADINGS; STRESS DISTRIBUTIONS; UNIAXIAL TENSIONS;

CARBON CARBON COMPOSITES;

EID: 61749095826     PISSN: 10698299     EISSN: 10990887     Source Type: Journal    
DOI: 10.1002/cnm.1081     Document Type: Conference Paper

References (17)

1. Reznik B, Gerthsen D, Hüttinger KJ. Micro- and nanostructure of the carbon matrix of infiltrated carbon fiber felts. Carbon 2001; 39(2):215-229. DOI: 10.1016/S0008-6223(00)00116-0.
2. Piat R, Schnack E. Hierarchical material modeling of carbon/carbon composites. Carbon 2003; 41(11):2121-2129. DOI: 10.1016/ S0008-6223(03)00240-9.
3. Reznik B, Hüttinger KJ. On the terminology for pyrolytic carbon. Carbon 2002; 40(4):621-624 DOI: 10.1016/ S0008-6223(01)00282-2.
4. Piat R, Reznik B, Schnack E, Gerthsen D. Modeling the effect of microstructure on the elastic properties of pyrolytic carbon. Carbon 2003; 41(9):1858-1861. DOI: 10.1016/ S0008-6223(03)00142-8.
5. Piat R, Schnack E. Modeling the effect of microstructure on the coefficients of thermal expansion of pyrolytic carbon. Carbon 2003; 41(11):2163-2166 DOI: 10.1016/S0008-6223(03)00231-8.
6. Reznik B, Gerthsen D, Zhang W, Hüttinger KJ. Texture changes in the matrix of an infiltrated carbon fiber felt studied by polarized light microscopy and selected area electron diffraction. Carbon 2003; 41(2):376-380. DOI: 10.1016/S0008-6223(02)00351-2.
7. Hatta H, Goto K, Ikegaki S, Kawahara I, Aly-Hassan M, Hamada H. Tensile strength and fiber/matrix interfacial properties of 2D- and 3D-carbon/ carbon composites. Journal of European Ceramic Society 2005; 25(4):535-542. DOI: 10.1016/j.jeurceramsoc.2004.02.014.
8. Aly-Hassan M, Hatta H, Wakayama S, Watanabe M, Miyagawa K. Comparison of 2D and 3D carbon/carbon composites with respect to damage and fracture resistance. Carbon 2003; 41(5):1069-1078. DOI: 10.1016/ S0008-6223(02)00442-6.
9. Hatta H, Suzuki K, Shigei T, Somiya S, Sawada Y. Strength improvement by densification of C/C composites. Carbon 2001; 39(1):83-90. DOI: 10.1016/S0008-6223(00)00083-X.
10. Hatta H, Goto K, Aoki T. Strengths of C/C composites under tensile, shear and compressive loading: role of interfacial shear strength. Composite Science and Technology 2005; 65(15-16):2550-2562. DOI: 10.1016/j.compscitech.2005.07.012.
11. Tsukrov I, Piat R, Novak J, Schnack E. Micromechanical modeling of porous carbon/carbon composites. Mechanics of Advanced Materials and Structures 2005; 12(1):43-54. DOI: 10.1080/15376490490492034.
12. Piat R, Mladenov N, Tsukrov I, Schnack E, Guellali M, Hoffmann MJ. Material modeling of the CVI-infiltrated C-felt. I. Basic formulae and theory. Composite Science and Technology 2006; 66(15):2997-3003. DOI: 10.1016/j.compscitech.2006.02.008.
13. Piat R, Mladenov N, Tsukrov I, Schnack E, Guellali M, Hoffmann MJ. Material modeling of the CVI-infiltrated C-felt. II. Numerical analyses and experimental validation. Composite Science and Technology 2006; 66(15): 2769-2775. DOI: 10.1016/j.compscitech.2006.03.003.
14. Casal E, Granda M, Bermejo J, Bonhomme J, Menéndez R. Influence of porosity on the apparent interlaminar shear strength of pitch-based unidirectional C-C composites. Carbon 2001; 39(1):73-82. DOI: 10.1016/S0008-6223(00)00085-3.
15. Reznik B, Gerthsen D. Microscopic study of failure mechanisms in infiltrated carbon fiber felts. Carbon 2003; 41(1):57-69. DOI: 10.1016/S0008-6223(02)00231-2.
16. Chen T, Reznik B, Gerthsen D, Zhang W, Hüttinger KJ. Microscopical study of carbon/carbon composites obtained by chemical vapor infiltration of 0°/0°/90°/90° carbon fiber preforms. Carbon 2005; 43(15):3088-3098. DOI: 10.1016/ j.carbon.2005.06.035.
17. ABAQUS software (Version 6.4). www.abaqus.com.