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020 _a9783319633848
024 7 _a10.1007/978-3-319-63384-8
_2doi
040 _bspa
_cES-MaUEC
_dES-MaUEC
050 4 _aTA418.14
_bM378 2018 EB
100 1 _aMartínez Pañeda, Emilio.
_eautor.
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
245 1 0 _aStrain Gradient Plasticity-Based Modeling of Damage and Fracture
_cby Emilio Martínez Pañeda.
264 1 _aCham
_bSpringer International Publishing
_c2018
300 _a1 recurso en línea (XVII, 159 páginas 66 ilustraciones, 47 ilustraciones a color.)
336 _2rdacontent
_aTexto
_btxt
337 _2rdamedia
_aelectrónico
_bc
338 _2rdacarrier
_arecurso electrónico
_bcr
347 _atext file
_bPDF
490 0 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
490 0 _aEngineering (Springer-11647)
505 0 _aPart.-Introduction -- Numerical framework -- Gradient plasticity formulations -- Numerical implementation -- Part ii -- Results -- Mechanism based crack tip characterization -- On fracture infinite strain gradient plasticity -- The role of energetic and dissipative length parameters -- Hydrogen diffusion towards the fracture process zone -- SGP-Based modelling of heac -- Conclusions.-Bibliography.
520 3 _aThis book provides a comprehensive introduction to numerical modeling of size effects in metal plasticity. The main classes of strain gradient plasticity formulations are described and efficiently implemented in the context of the finite element method. A robust numerical framework is presented and employed to investigate the role of strain gradients on structural integrity assessment. The results obtained reveal the need of incorporating the influence on geometrically necessary dislocations in the modeling of various damage mechanisms. Large gradients of plastic strain increase dislocation density, promoting strain hardening and elevating crack tip stresses. This stress elevation is quantified under both infinitesimal and finite deformation theories, rationalizing the experimental observation of cleavage fracture in the presence of significant plastic flow. Gradient-enhanced modeling of crack growth resistance, hydrogen diffusion and environmentally assisted cracking highlighted the relevance of an appropriate characterization of the mechanical response at the small scales involved in crack tip deformation. Particularly promising predictions are attained in the field of hydrogen embrittlement. The research has been conducted at the Universities of Cambridge, Oviedo, Luxembourg, and the Technical University of Denmark, in a collaborative effort to understand, model and optimize the mechanical response of engineering materials. .
988 _aEBSPRINGER_2018
650 7 _2embne
_9139841
_aResistencia de materiales
776 0 8 _iEdición impresa:
_z9783319633831
776 0 8 _iEdición impresa:
_z9783319633855
776 0 8 _iEdición impresa:
_z9783319875415
856 4 0 _uhttps://go.openathens.net/redirector/universidadeuropea.es?url=https://doi.org/10.1007/978-3-319-63384-8
_zAcceso a este recurso digital (usuarios Universidad Europea de Madrid)
942 _2lcc
_cLE