Noise-robust stress intensity factor determination from kinematic field measurements
نویسندگان
چکیده
منابع مشابه
Full field measurements of anisotropic stress intensity factor ranges in fatigue
The effects of anisotropy during mixed mode fatigue crack growth were studied in single crystal 316L stainless steel. An anisotropic least-squares regression algorithm using displacements from digital image correlation was developed to find the effective stress intensity factors, KI and KII, and the T-stress. Crack tip plastic zones were determined using an anisotropic yield criterion. Strains ...
متن کاملAnalytical Solution for Stress Field and Intensity Factor in CSTBD under Mixed Mode Conditions
Considering the fact that rocks fail faster under tensile stress, rock tensile strength is of greatimportance in applications such as blasting, rock fragmentation, slope stability, hydraulic fracturing,caprock integrity, and geothermal energy extraction. There are two direct and indirect methods tomeasure tensile strength. Since direct methods always encompass difficulties in test setup, indire...
متن کاملDetermination The Stress Intensity Factor in The Un-Central Edge Cracks With The concentrated Load
The stress distribution on the tip of the cracks and the stress intensity factor on them are the main courses in the fracture mechanic. The stress intensity factor of the cracks with the different load exited and the different geometry are listed in the tables of the standard books. In all of them, the cracks are located in the central point of the plates. In the uniform edge loaded case, the c...
متن کاملStress Intensity Factor Determination in Functionally Graded Materials, Considering Continuously Varying of Material Properties
In this paper, the plates made of functionally graded material (FGM) with and without a crack are numerically simulated, employing the finite element method (FEM). The material property variations are defined to be fully continuous; therefore, the elements can be as small as required. For this purpose, variations of the material properties are applied in both the integration points and in the n...
متن کاملStress intensity factor measurements from digital image correlation: post-processing and integrated approaches
Digital image correlation is an appealing technique for studying crack propagation in brittle materials such as ceramics. A case study is discussed where the crack geometry, and the crack opening displacement are evaluated from image correlation by following two different measurement and identification routes. The displacement uncertainty can reach the nanometer range even though optical pictur...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Engineering Fracture Mechanics
سال: 2008
ISSN: 0013-7944
DOI: 10.1016/j.engfracmech.2007.04.018