A single-domain boundary element method for packed silencers with multiple bulk-reacting sound absorbing materials

2010 ◽  
Vol 34 (11) ◽  
pp. 971-976 ◽  
Author(s):  
C. Jiang ◽  
T.W. Wu ◽  
C.Y.R. Cheng
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Domain Boundary ◽  
Single Domain ◽  
Absorbing Materials ◽  
Element Method

scholarly journals Two-Dimensional Fracture Mechanics Analysis Using a Single-Domain Boundary Element Method

2012 ◽  
Vol 2012 ◽  
pp. 1-26 ◽  
Author(s):  
Chien-Chung Ke ◽  
Cheng-Lung Kuo ◽  
Shih-Meng Hsu ◽  
Shang-Chia Liu ◽  
Chao-Shi Chen
Keyword(s):  
Boundary Element Method ◽  
Crack Propagation ◽  
Boundary Element ◽  
Domain Boundary ◽  
Circumferential Stress ◽  
Single Domain ◽  
Propagation Path ◽  
Two Dimensional ◽  
Anisotropic Rock ◽  
Element Method

This work calculates the stress intensity factors (SIFs) at the crack tips, predicts the crack initiation angles, and simulates the crack propagation path in the two-dimensional cracked anisotropic materials using the single-domain boundary element method (BEM) combined with maximum circumferential stress criterion. The BEM formulation, based on the relative displacements of the crack tip, is used to determine the mixed-mode SIFs and simulate the crack propagation behavior. Numerical examples of the application of the formulation for different crack inclination angles, crack lengths, degree of material anisotropy, and crack types are presented. Furthermore, the propagation path in Cracked Straight Through Brazilian Disc (CSTBD) specimen is numerically predicted and the results of numerical and experimental data compared with the actual laboratory observations. Good agreement is found between the two approaches. The proposed BEM formulation is therefore suitable to simulate the process of crack propagation. Additionally, the anisotropic rock slope failure initiated by the tensile crack can also be analyzed by the proposed crack propagation simulation technique.

Modelling of Crack Propagation in Anisotropic Material Using Single-Domain Boundary Element Method

2013 ◽  
Vol 560 ◽  
pp. 87-98
Author(s):  
Chien Chung Ke ◽  
Wong Rui Lee ◽  
Shih Meng Hsu ◽  
Chao Shi Chen
Keyword(s):  
Boundary Element Method ◽  
Crack Propagation ◽  
Boundary Element ◽  
Slope Failure ◽  
Domain Boundary ◽  
Circumferential Stress ◽  
Single Domain ◽  
Propagation Path ◽  
Anisotropic Rock ◽  
Element Method

This paper evaluates the stress intensity factors (SIFs) at the crack tips, predicts the crack initiation angles and simulates the crack propagation path in the two-dimensional cracked anisotropic materials using the single-domain boundary element method (SDBEM) combined with maximum circumferential stress criterion. Numerical examples of the application of the formulation for different crack inclination angles, crack lengths, degree of material anisotropy, and crack types are presented. Furthermore, the propagation path in Cracked Straight Through Brazilian Disc (CSTBD) specimen is numerically predicted and the results of numerical and experimental data compared with the actual laboratory observations. Good agreement is found between the two approaches. The proposed BEM formulation is therefore suitable to simulate the process of crack propagation. Additionally, the anisotropic rock slope failure initiated by the tensile crack can also be analyzed by the proposed crack propagation simulation technique.

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