... fracture mechanics. They have remained practically unchanged ever since, even though the understanding of elastic-plastic fracture mechanics and ductile fracture has evolved considerably. In this paper, the state-of-art understanding of the ductile fracture process, and elastic-plastic fracture mechanics...

... sections. Numerical simulation and experimental tests focused on the importance of this corner effect and the separate role geometry, yield strength, and fracture toughness on the total fracture strength of the joint. structural hollow section X-joint ductile fracture brittle fracture Journal...

... and toughness. In this paper, ductile fracture of irradiated material was studied based on the irradiation-induced defects forming process combined with a ductile fracture process model i.e., void growth and coalescence model, and a model for fracture strain was developed as a function of fluence, applied...

... to simulate ductile crack growth in fracture specimens and to predict the burst pressure of thin-walled tubular structures containing crack-like defects. ductile fracture crack growth finite elements R -curve pipelines burst pressure crack-tip constraint Claudio Ruggieri I and Eduardo Hippert...

... between the deep crack SE(B) and C(T) data sets. fracture fracture toughness ductile-to-brittle transition ductile fracture T 0 reference temperature master curve constraint cleavage Robert L. Tregoning l and James A. Joyee 2 Application of a T-Stress Based Constraint Correction to A533B...

... to calibrate local approach models, which are then further applied to determine the attributes and usability of the different small specimens. brittle fracture ductile fracture miniature specimens local approach Kim Wallin, I AnssiLaukkanen, l andSeppo Tiihtinen l Examination on Fracture Resistance...

... assumed to be material constants. However, micromechanical considerations show that this assumption is only an approximation in the case of ductile fracture. Here, the underlying mechanisms of void nucleation, growth, and coalescence are dependent on the stress triaxiality. This effect is accounted...

... experiments in center crack panels are analyzed. Good agreement with experimental records is found. Finally, the applicability of the model to study complex crack configurations as in multi-site damaged specimens is demonstrated. ductile fracture cohesive zone model CTOA aluminum finite element...

... In a ductile fracture methodology developed by Landes et al., the result from a laboratory test is used to predict the behavior of a structural component. Within the framework of this methodology, a critical step consists in obtaining the calibration function for the structural component...

... be solved. Gurson model micro-mechanical parameters damage mechanics material characterization coalescence mechanism ductile fracture gradient effect failure criteria Z. L. ZhangI and M. HaugeI On the Gurson Micro-Mechanical Parameters REFERENCE: Zhang, Z. L. and Hauge, M., "On the Gurson...

..., and conclusions as to the transferability of R-curves are discussed. ductile fracture micromechanics void growth and coalescence Gurson-Tvergaard weld defect J-integral Owen S. Nishioka I and Tina L. Panontin 2 DUCTILE CRACK GROWTH FROM SIMULATED DEFECTS IN STRENGTH OVERMATCHED BUTT WELDS REFERENCE...

... fracture mixed-mode Mode I Mode II fracture toughness fractography shear fracture J -integral Gurson-Tvergaard model Anssi Laukkanen, 1 Kim Wallin, 1 and Rauno Rintamaa 1 Evaluation of the Effects of Mixed Mode I-II Loading on Elastic-Plastic Ductile Fracture of Metallic Materials REFERENCE...

... Micromechanical material models have been established as a powerful tool for the prediction of the ductile fracture resistance. Suitable damage parameters of the Gurson model can be obtained from small volume specimens like tensile, Charpy or subsized Charpy specimens and then applied to predict...

... and finite elements simulation of the notched specimens are used to determine the critical values of a local ductile fracture criterion. These values are subsequently used in conjunction with finite element simulations to predict the fracture toughness of the material in different orientations...

... in the ductile fracture resistance of tempered mar-tensite. The results of this investigation indicate that the processing-induced refinement of grain-refining precipitates also provides significant improvements in the lower-shelf and transition toughness of 3310, 8219 and 4340 steels tempered at 180‡C and 4340...

... with precracked Charpy-type specimens. micromechanical modeling ductile fracture Gurson model finite element method austenitic cladding semielliptical crack subsized specimens continuum damage me-chanics cracking fracture (materials) Dong-Zhi Sun 1and Winfried Schmitt t Assessment...

.... These correlations suggest a means to predict absolute plane-strain fracture toughness. fracture toughness ductile fracture micromechanical modeling aluminum alloys elevated temperature Michael J. Haynes, 1 Brian P. Somerday, 1 Cynthia L. Lach, 2 and Richard P. Gangloff3 Micromechanical Modeling...

... tests and the micromechanical models, that are able to predict the ductile damage evolution in these materials. Additional information on the ductility behaviour of these materials is revealed by this micromechanical analysis. ductile fracture cavity growth damage work reactor pressure vessel...

... cycling induced decomposition of retained austenite. It is demonstrated that, should the defects involved be shearable defects similar to those introduced by irradiation, they would promote ductile fracture by enhancing the growth and linking of microvoids and thus contribute to a drop in USE...

... non-uniqueness of the so called ductile-to-brittle transition temperature (DBTT), but also call into question the use of Charpy data for ranking the relative performance of various alloys. The similarities in quasi-cleavage fracture and differences in ductile fracture are manifested in the fracture...