Title :
Probabilistic fracture mechanics analysis using the boundary element method
Author :
Millwater, Harry R., Jr.
Author_Institution :
Dept. of Mater. & Mech., Southwest Res. Inst., San Antonio, TX, USA
Abstract :
The development and application of a probabilistic fracture mechanics computer program is discussed. This program is obtained by integrating an advanced reliability analysis code, NESSUS, with a special purpose fracture mechanics boundary element program, BIECRX. The resulting program, NESSUS/BIECRX, can perform probabilistic and reliability analysis with respect to stress intensity factors, energy release rate, displacements, and stresses for two-dimensional structures in a highly accurate, yet efficient manner. Random variables with respect to geometry, loading, material properties, and crack parameters can be analyzed. Several numerical examples are provided to demonstrate the capabilities of NESSUS/BIECRX. The accuracy and efficiency of the program with respect to Monte Carlo methods is demonstrated
Keywords :
Monte Carlo methods; boundary-elements methods; fracture mechanics; mechanical engineering computing; probability; reliability; statistical analysis; Monte Carlo methods; NESSUS/BIECRX; boundary element method; crack; displacements; energy release rate; probabilistic fracture mechanics; reliability analysis; stress intensity factors; Algorithm design and analysis; Boundary element methods; Failure analysis; Geometry; Material properties; Monte Carlo methods; Performance analysis; Space technology; Stress; Uncertainty;
Conference_Titel :
Uncertainty Modeling and Analysis, 1990. Proceedings., First International Symposium on
Conference_Location :
College Park, MD
Print_ISBN :
0-8186-2107-9
DOI :
10.1109/ISUMA.1990.151290
