Residual stress in glass: Indentation crack and fractography approaches
نویسندگان
چکیده
منابع مشابه
Investigation on Indentation Cracking-Based Approaches for Residual Stress Evaluation
Vickers indentation fracture can be used to estimate equibiaxial residual stresses (RS) in brittle materials. Previous, conceptually-equal, analytical models were established on the assumptions that (i) the crack be of a semi-circular shape and (ii) that the shape not be affected by RS. A generalized analytical model that accounts for the crack shape and its change is presented. To assess these...
متن کاملResidual Stress Fields due to Static and Dynamic Indentation
Many problems in material mechanics have eluded full understanding due to an inability to characterize local strain fields with sufficient resolution. For crystalline materials, very highresolution x-ray diffraction possible in a parallel beam geometry at a synchrotron source offers a solution as demonstrated by our preliminary work on beamline 2-1 as well as the work of others (see, for exampl...
متن کاملEffect of Compressive Residual Stress on the Corner Crack Growth
In the present study, plasticity induced crack closure (PICC) concept and three dimensional (3D) finite element methods (FEM) are used to study the effect of compressive residual stress field on the fatigue crack growth from a hole. To investigate the effect of compressive residual stress on crack opening levels and crack shape evolution, Carlson’s experiments were simulated. Crack shape evolut...
متن کاملNumerical Study of the Effect of Materials’ Plastic Behavior on Equibiaxial Residual Stress Measurement Using Indentation
Indentation is a new method for estimating residual stress. The plastic behavior of the materials under study can affect indentation parameters and, thus, influences the results of residual stress measurement. In this paper, the effect of yield stress and work-hardening exponent on the accuracy of residual stress measurements in steels and aluminums was studied. Results showed that, for m...
متن کاملResidual Stress Effects in Tubular K-joints Crack Growth
Seeking light and transparent bridge designs, engineers and architects have found an efficient and artistic way to fulfill their requirements: steel tubular bridges. Like any other welded structure, the joints of this kind of bridge suffer from high tensile weld residual stresses. Combined with high stress concentrations, tensile residual stress is a relevant factor in fatigue crack development...
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: Dental Materials
سال: 2009
ISSN: 0109-5641
DOI: 10.1016/j.dental.2009.07.001