Computational aspects of nonlinear fracture mechanics
Germany
Development and stimulation of jointable-porous rock for utilisation of geothermal heat, frac stimulation in jointable a...
The project investigated frac technology, from an analysis of the tectonic field of stress to the hydraulic characterisation of the rock prior to and after stimulation in several stages: (1) Compilation of stress data for Germany and investigation of the effects of stress on the hydraulic properties of the jointed rock; (2) Development of a new sti...
An overview of failure assessment methods in codes and standards
Germany
Reliable J-values Numerical aspects of the path-dependence of the J-integral in incremental plasticity
The determination of reliable J-values in structural analyses by the finite element method for elastic-plastic material behaviour is addressed. A survey over the theoretical background of the J-integral is given, possibilities and restrictions of application in elastic-plastic fracture mechanics are pointed out, and the calculation by the finite el...
An overview of failure assessment methods in codes and standards
This volume provides comprehensive up-to-date information on the assessment of the integrity of engineering structures containing crack-like flaws, in the absence of effects of creep at elevated temperatures (see volume 5) and of environment (see volume 6). Key methods are extensively reviewed and background information as well as validation is giv...
An overview of failure assessment methods in codes and standards
Germany
Problems in fracture mechanics of indentation cracks
Vickers indentation cracks are an appropriate tool to determine the crack-tip toughness K_1_0 of ceramics from the total crack opening displacements. Two different procedures were applied to determine the crack opening displacement (COD) field under residual and externally applied stress fields. First, a semi-analytical procedure was used to comput...
A small angle X-ray scattering method to investigate the crack tip in metals Final report of the Marie Curie individual ...
Germany
35. Conference of the DVM Working Group on Fracture Processes: Advances in fracture and damage mechanics - simulation me...
Subjects of the meeting were: Simulation of fatigue crack growth in real strucures using FEA (M. Fulland, Paderborn); Modelling of ductile crack growth (W. Brocks, Geesthacht); Advances in non-local modelling of ductile damage (F. Reusch et al., Berlin, Dortmund); Fracture mechanics of ceramics (D. Munz, Karlsruhe); From materials testing to vehicl...
29. MPA-Seminar: Sicherheit und Verfuegbarkeit in der Energietechnik. RIMAP Power Workshop. ECOPRESS Seminar. Bd. 1 Vort...
Germany
