Investigation of crack propagation of the concentric anchorage zones based on linear elastic fracture mechanics

2018 ◽  
Vol 19 (6) ◽  
pp. 1540-1550
Author(s):  
Linyun Zhou ◽  
Zhao Liu ◽  
Zhiqi He
Keyword(s):  
Fracture Mechanics ◽  
Crack Propagation ◽  
Linear Elastic Fracture Mechanics ◽  
Linear Elastic ◽  
Elastic Fracture

Analysis of the Fatigue Crack Propagation Life-Span Based on Linear Elastic Fracture Mechanics

2012 ◽  
Vol 204-208 ◽  
pp. 3016-3021
Author(s):  
Zheng Wen Jiang ◽  
Shui Wan ◽  
Chen Cheng
Keyword(s):  
Fatigue Crack ◽  
Fracture Mechanics ◽  
Crack Propagation ◽  
Life Span ◽  
Fatigue Crack Propagation ◽  
Steel Specimen ◽  
Linear Elastic Fracture Mechanics ◽  
Linear Elastic ◽  
Elastic Fracture ◽  
Fatigue Crack Propagation Life

Abstract. The fatigue crack propagation life-span of the engineering structure is studied. Linear elastic fracture mechanics is applied to analyze the life-span of fatigue crack growth of specimen, which is under constant amplitude load. The software of Fatigue is used to calculate the life-span of a center crack plate steel specimen. The result show that the calculated values of the life-span are basically well with the experimental data.

Numerical and Experimental Analysis of Linear Elastic Fracture Mechanics

2004 ◽  
Author(s):  
Muhammad Afzaal Malik ◽  
Batool H. Sayyed ◽  
Shahab Khushnood
Keyword(s):  
Fracture Mechanics ◽  
Crack Propagation ◽  
Research Work ◽  
Crack Size ◽  
Linear Elastic Fracture Mechanics ◽  
Point Of View ◽  
Experimental Investigations ◽  
Critical Crack ◽  
Linear Elastic ◽  
Elastic Fracture

Crack propagation in materials can lead to catastrophic failures. The understanding of crack propagation in materials is of crucial importance in many industries, including nuclear, chemical and aeronautical applications. From an engineering point of view, fracture mechanics is used as a basis for predicting critical crack size, strength of a structure as a function of crack size, inspection requirements pertaining to size of an admissible crack and the period of time between inspections. It is usually required to determine the distribution of stresses and strains in a body that is subjected to external loads or displacements. The closed form solutions for crack propagation are rarely available. A numerical simulation of such problems is therefore required. This research work uses Finite Element Method (FEM) for Linear Elastic Fracture Mechanics (LEFM) to predict Stress Intensity Factor (SIF) for different crack geometries. The validation of the results based on modeling and simulation is carried out through comparison with our experimental investigations for crack propagation using photo-elastic methods.

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