Gruppo Italiano Frattura
期刊
会议
图书
作者:P. Lopez-Crespo , J. Vazquez-Peralta ...
来源:[J].Fracture and Structural Integrity, 2017, Vol.11 (41), pp.203 - 210
摘要:The current work aims at estimating the stress intensity factor deep inside the bulk from elastic strain data measured by synchrotron X-ray diffraction. Key features affecting the evaluation of the stress intensity factor are the number of terms in the analytical model descr...
作者:... J. Sobek , P. Frant�k , P. Lopez-Crespo
来源:[J].Fracture and Structural Integrity, 2017, Vol.11 (41), pp.323 - 331
摘要:A study on the approximation of the stress field in the vicinity of crack tip in a compact tension specimen made from Al 2024-T351 is presented. Crack tip stress tensor components are expressed using the linear elastic fracture mechanics (LEFM) theory in this work, more precisely...
作者:P. Lopez-Crespo , B. Moreno ...
来源:[J].Fracture and Structural Integrity, 2017, Vol.11 (41), pp.54 - 61
摘要:Most mechanical components are subjected to the complex fatigue loading conditions, where both amplitude and direction of loading cycles change over the time. The estimation of damage caused by these complex loading scenarios are often done by simplified uniaxial fatigue theories...
作者:P. Lopez-Crespo , B. Moreno
来源:[J].Fracture and Structural Integrity, 2015, Vol.9 (33), pp.143 - 150
摘要:In the past two decades, crack-tip mechanics has been increasingly studied with full-field techniques. Within these techniques, Digital Image Correlation (DIC) has been most widely used due to its many advantages, to extract important crack-tip information, including Stress ...
作者:P. Lopez-Crespo , B. Moreno ...
来源:[J].Fracture and Structural Integrity, 2016, Vol.10 (37), pp.114 - 123
摘要:Most mechanical components experience multi-axial cyclic loading conditions during service. Experimental analysis of fatigue cracks under such conditions is not easy and most works tend to focus more on the simpler but less realistic case of uni-axial loading. Consequently, there...
作者:P. Lopez-Crespo , M. Mostafavi ...
来源:[J].Fracture and Structural Integrity, 2015, Vol.9 (33), pp.151 - 158
摘要:The evolution of crack-tip strain fields in a thin (plane stress) compact tension sample following an overload (OL) event has been studied using two different experimental techniques. Surface behaviour has been characterised by Digital Image Correlation (DIC), while the bulk beha...
作者:P. Lopez-Crespo , P.J. Withers ...
来源:[J].Fracture and Structural Integrity, 2013, Vol.7 (25), pp.153 - 160
摘要:This work presents an in_situ characterisation of crack_tip strain fields following an overload by means of synchrotron X_ray diffraction. The study is made on very fine grained bainitic steel, thus allowing a very high resolution so that small changes occurring around the crack_...
作者:P. Lopez-Crespo , J. Zapatero ...
来源:[J].Fracture and Structural Integrity, 2014, Vol.8 (30), pp.244 - 251
摘要:In this paper a methodology for evaluating crack initiation under biaxial conditions is presented. The methodology consists of evaluating the crack length automatically with digital processing of highmagnification images of the crack. The methodology was applied to study five dif...
作者:B. Moreno , P. Lopez-Crespo , J. Zapatero
来源:[J].Fracture and Structural Integrity, 2013, Vol.7 (25), pp.145 - 152
摘要:This work presents a novel methodology for characterising fatigue cracks under biaxial conditions. The methodology uses high magnification Digital Image Correlation (DIC) technique for measuring displacement and strain crack_tip fields. By applying micro_speckle pattern on the me...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×