Proposal of two parameters to evaluate in-situ apparent toughness of interphase in fiber reinforced ceramic matrix composites: Three-dimensional finite element simulations
Restricted accessResearch articleFirst published online January, 2023
Proposal of two parameters to evaluate in-situ apparent toughness of interphase in fiber reinforced ceramic matrix composites: Three-dimensional finite element simulations
Interphase structure characters such as single-layer interfacial thickness or number of multilayers may have a great influence on mechanical properties of continuous fibers reinforced ceramic matrix composites (CFRCMCs). However, the determination of the optimal interphase is still unclear for the complex microstructures of CFRCMCs. In this study, a novel Finite Element Method (FEM) -based numerical method considering mean scalar stiffness degradation and mean damage dissipation energy are proposed to quantitatively assess the effect of above structure characters on in-situ toughness of interphase. The proposed method has successfully applied on single pyrolytic carbon (PyC) layer and alternating silicon carbide/pyrolytic carbon (SiC-PyC)n multilayer systems. The results suggest that thicker PyC interphase will prone cause brittle fracture with lower toughness, whilst more layers with the same total thickness will improve fracture toughness for (SiC-PyC)n system. On the contrary, more layers with the same sublayer thickness will decrease in situ apparent fracture toughness. The proposed method explains well the previous contradictory experimental observations.
ZhangWHinokiTKatohY, et al.Crack initiation and growth characteristics in SiC/SiC under indentation test. J Nucl Mater1998; 258–263: 1577–1581.
2.
YangBZhouXChaiY. Mechanical properties of SiCf/SiC composites with PyC and the BN interface. Ceram Int2015; 41: 7185–7190.
3.
ZhuYZHuangZRDongSM, et al.Correlation of PyC/SiC interphase to the mechanical properties of 3D HTA C/SiC composites fabricated by polymer infiltration and pyrolysis. New Carbon Mater2007; 22: 327–331.
4.
PasquierSLamonJNaslainR. Tensile static fatigue of 2D SiC/SiC composites with multilayered (PyC–SiC)n interphases at high temperatures in oxidizing atmosphere. Compos A Appl Sci Manuf1998; 29: 1157–1164.
5.
JacquesSLopez-MarureAVincentC, et al.SiC/SiC minicomposites with structure-graded BN interphases. J Eur Ceram Soc2000; 20: 1929–1938.
6.
NaslainRRPaillerRJFLamonJL. Single- and multilayered interphases in SiC/SiC composites exposed to severe environmental conditions: an overview. Int J Appl Ceram Technol2010; 7: 263–275.
7.
ZhenCLiXZhangB, et al.The improvement of mechanical properties of SiC/SiC composites by in situ introducing vertically aligned carbon nanotubes on the PyC interface. Ceram Int2019; 45: 3368–3376.
8.
BertrandSDroillardCPaillerR, et al.TEM structure of (PyC/SiC)n multilayered interphases in SiC/SiC composites. J Eur Ceram Soc2000; 20: 1–13.
9.
TianHLiuHTChengHF. Mechanical and microwave dielectric properties of KD-I SiCf/SiC composites fabricated through precursor infiltration and pyrolysis. Ceram Int2014; 40: 9009–9016.
10.
YinJLeeSHFengL, et al.The effects of SiC precursors on the microstructures and mechanical properties of SiCf/SiC composites prepared via polymer impregnation and pyrolysis process. Ceram Int2015; 41: 4145–4153.
11.
ShimodaKParkJSHinokiT, et al.Influence of pyrolytic carbon interface thickness on microstructure and mechanical properties of SiC/SiC composites by NITE process. Compos Sci Technol2008; 68: 98–105.
12.
ShimodaKKohyamaAHinokiT. High mechanical performance SiC/SiC composites by NITE process with tailoring of appropriate fabrication temperature to fiber volume fraction. Compos Sci Technol2009; 69: 1623–1628.
13.
LiDFHuangJLTsuiLJ, et al.Formation of BN films on carbon fibers by dip-coating. Surf Coat Technol2002; 150: 269–276.
14.
LiJSZhangCRLiB, et al.Boron nitride coatings by chemical vapor deposition from borazine. Surf Coat Technol2011; 205: 3736–3741.
15.
KarakocOKoyanagiTNozawaT, et al.Fiber/matrix debonding evaluation of SiCf/SiC composites using micropillar compression technique. Compos B Eng2021; 224: 109189.
16.
LiMZhouXYangH, et al.The effect of the PyC interphase coating on the microwave heating sintered SiC/SiC composites. J Alloy Compd2016; 688: 974–981.
17.
FangCHuPDongS, et al.Design and optimization of the coating thickness on chopped carbon fibers and sintering temperature for ZrB2-SiC-Cf composites prepared by hot pressing. J Eur Ceram Soc2019; 39: 2805–2811.
18.
ZhangTQiLLiS, et al.Evaluation of the effect of PyC coating thickness on the mechanical properties of T700 carbon fiber tows. Appl Surf Sci2019; 463: 310–321.
19.
NakazatoNKishimotoHParkJS. Appropriate thickness of pyrolytic carbon coating on SiC fiber reinforcement to secure reasonable quasi-ductility on NITE SiC/SiC composites. Ceram Int2018; 44: 19307–19313.
20.
CleggWJKendallKAlfordNM, et al.A simple way to make tough ceramics. Nature1990; 347: 455–457.
21.
YangWArakiHParkJY, et al.Effect of multiple coating interfacial structures on bending property of Fcvi SiC/SiC composites. In: JessenTUstundagE (eds). Proceedings of the 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science ProceedingsCocoa Beach, FL, January 2000, pp. 259–266.
22.
TaguchiTNozawaTIgawaN, et al.Fabrication of advanced SiC fiber/F-CVI SiC matrix composites with SiC/C multi-layer interphase. J Nucl Mater2004; 329–333: 572–576.
23.
YuHZhouXZhangW, et al.Mechanical behavior of SiCf/SiC composites with alternating PyC/SiC multilayer interphases. Mater Des2013; 44: 320–324.
24.
JiaYLiKXueL, et al.Microstructure and mechanical properties of carbon fiber reinforced multilayered (PyC–SiC)n matrix composites. Mater Des2015; 86: 55–60.
25.
LuZWangCXiaB, et al.Effect of interfacial properties on the uniaxial tensile behavior of three-dimensional braided composites. Comput Mater Sci2013; 79: 547–557.
26.
GhoshSLingYMajumdarB, et al.Interfacial debonding analysis in multiple fiber reinforced composites. Mech Mater2000; 32: 561–591.
27.
HydeAHeJCuiX, et al.Effects of microvoids on strength of unidirectional fiber-reinforced composite materials. Compos B Eng2020; 187: 07844.
28.
WangMZhangPFeiQ, et al.Computational evaluation of the effects of void on the transverse tensile strengths of unidirectional composites considering thermal residual stress. Compos Struct2019; 227: 111287.
29.
CamanhoPDávilaC. Mixed-mode decohesion finite elements for the simulation of delamination in composite materials. Washington, DC: NASA, 2002.
30.
AwajiHMatsunagaTChoiRM. Relation between strength, fracture toughness, and critical frontal process zone size in ceramics. Mater Trans2006; 47: 1532–1539.
31.
KoyanagiJSatoYSasayamaT, et al.Numerical simulation of strain-rate dependent transition of transverse tensile failure mode in fiber-reinforced composites. Compos A Appl Sci Manuf2014; 56: 136–142.
32.
XuYZhangPLuH, et al.Numerical modeling of oxidized C/SiC microcomposite in air oxidizing environments below 800°C: microstructure and mechanical behavior. J Eur Ceram Soc2015; 35: 3401–3409.
33.
YouHJLutzWGergerH, et al.Fiber push-out study of a copper matrix composite with an engineered interface: experiments and cohesive element simulation. Int J Sol Struct2009; 46: 4277–4286.
34.
WangXZhangBDuS, et al.Numerical simulation of the fiber fragmentation process in single-fiber composites. Mater Des2010; 31: 2464–2470.
35.
ZhangLWangSQiaoW, et al.Experimental study on interface mechanical propertied of unidirectional carbon fiber composites. Mech Sci Technol Aerosp Eng2019; 38: 1296–1300. [in Chinese].
36.
WangRHanJMaoJ, et al.A molecular dynamics based cohesive zone model for interface failure under monotonic tension of 3D four direction SiCf/SiC composites. Compos Struct2021; 274: 114397.
YangWArakiHNodaT, et al.Hi-Nicalon™ fiber-reinforced CVI-SiC matrix composites: I effects of PyC and PyC-SiC multilayers on the fracture behaviors and flexural properties. Mater Trans2002; 43: 2568–2573.
39.
R’MiliMMassardierVMerleP, et al.The effect of thermal exposure on the strength distribution of B4C coated carbon fibers. Carbon1999; 37: 129–145.
40.
YuHJZhouXGZhangW, et al.Mechanical properties of 3D KD-I SiCf/SiC composites with engineered fibre–matrix interfaces. Compos Sci Technol2011; 71: 699–704.
