Mixed-mode high temperature toughness of silicon nitride

Khandelwal, P.; Majumdar, Bhaskar; Rosenfield, A. R.

doi:10.1007/bf00354402

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…Banks‐Sills et al 27 also investigated interfacial fracture toughness of K‐142 and K‐144 ceramics with the BD configuration. The BD specimen has also been used to study mixed mode fracture in some silicon‐based ceramics 28 and in porcelain and silicon nitride 29,30 …”

Section: Introductionmentioning

confidence: 99%

“…The BD specimen has also been used to study mixed mode fracture in some silicon-based ceramics 28 and in porcelain and silicon nitride. 29,30 Meanwhile, there are several criteria within the frame work of linear elastic fracture mechanics for predicting the onset of brittle fracture under mixed mode I/II loading. [31][32][33] Most of the available criteria have been generally developed according to the states of stress, strain, or energy around the crack tip.…”

Section: Introductionmentioning

confidence: 99%

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Fracture Analysis of Some Ceramics Under Mixed Mode Loading

Ayatollahi

Aliha

2010

Journal of the American Ceramic Society

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Mixed mode fracture resistance was analyzed for some previously tested ceramics using a three‐parameter fracture criterion called the generalized maximum tangential stress (GMTS) criterion. For using this fracture criterion, the size of a critical distance from the crack tip was required. Therefore, an analytical model was suggested for determining the size of critical distance in terms of mode I fracture toughness and the tensile strength of ceramics. For some ceramics with reported grain size, the size of critical distance was found to be approximately 100 times the average grain size. The experimental results obtained from the cracked Brazilian disk specimen and reported in the literature for sialon, mullite, SiC, glass, sintered carbide, porcelain, zirconia, and alumina could be estimated very well when the GMTS fracture criterion was used.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fracture Analysis of Some Ceramics Under Mixed Mode Loading

Ayatollahi

Aliha

2010

Journal of the American Ceramic Society

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“…30,[33][34][35][36][37][38] The calculated strengthenvelopes using C = 1.75 for Shetty's criterion and C = 1.65 for the ellipsoidal criterion are drawn in Fig. 5 together with the 95% probability band for each envelope.…”

Section: Discussionmentioning

confidence: 99%

Fracture behavior of silicon nitride ceramics under combined compression–torsion stresses analyzed by multiaxial fracture statistics

Kawai

Kotani

Kakimoto

et al. 2011

Journal of the European Ceramic Society

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“…Therefore, the fracture energy of the silicon nitride is assumed to be independent of temperature and a constant value of 110 MPa•m. Meanwhile, the ratio of the fracture toughness in Mode I and Mode II fracture K IIC /K IC , is sufficiently insensitive to temperature, so that it could be considered to be a constant of 1.42 [12]. According to the formula(3)and the value of G IC , the value of G IIC can be expressed as…”

Section: Edge Chipping Model Using Xfemmentioning

confidence: 99%

Simulation of Edge Chipping in Laser-Assisted Milling of Silicon Nitride Ceramics Using the XEFM

Gao

Wang

2013

KEM

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Theoretical, experimental and simulation researches are investigated to study the phenomenon of edge chipping in laser assisted milling (LAML) of silicon nitride ceramics. To consider the crack evolution and influencing factors of edge chipping, the Extended Finite Element Method (XFEM) is used to model the process of chipping crack with the advantage of independent of the mesh and needless to remesh with the crack growth. The chipping width measured from experiments are loaded as initial boundary conditions to build the XFEM model, and the results show the edge chipping reduces with cutting forces decreasing and edge toughness increasing. The model reveals the edge chipping of workpiece reduces at elevated temperature through softening and toughening mechanisms.

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Mixed-mode high temperature toughness of silicon nitride

Cited by 8 publications

References 8 publications

Fracture Analysis of Some Ceramics Under Mixed Mode Loading

Fracture Analysis of Some Ceramics Under Mixed Mode Loading

Fracture behavior of silicon nitride ceramics under combined compression–torsion stresses analyzed by multiaxial fracture statistics

Simulation of Edge Chipping in Laser-Assisted Milling of Silicon Nitride Ceramics Using the XEFM

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