Advanced Methods in Materials Processing DefectsEdited By
- M. Predeleanu
- P. Gilormini, Laboratoire de Mécanique et Technologie, ENS de Cachan, CNRS, Université de Paris 6, 61 ave. du Président Wilson, 94235, Cachan Cedex, France
This collection of papers focus on advanced methods for predicting and avoiding the occurrence of defects in manufactured products. A new feature is included, namely, the influence of the processing-induced defects on the integrity of structures.
The following topics are developed: damage modeling; damage evaluation and rupture; strain localization and instability analysis; formability characterization; prediction of shape inaccuracies; influence of defects on structural integrity. The main manufacturing operations are covered and various materials are examined, such as new and conventional metal alloys, ceramics, polymers and composites.
For engineers and researchers interested in manufacturing products and materials.
Studies in Applied Mechanics
Published: June 1997
- Preface. Damage Modeling. On the dynamic cavitation in solids (L. Badea, M. Predeleanu). A ductile damage model including shear stress effect (J.C. Boyer, C. Staub). A mesoscopic approach of ductile damage during cold forming processes (G. Brethenoux et al.). A fully coupled elasto-plastic damage theory for anisotropic materials (J.F. Charles et al.). Mathematical modeling of dynamical deforming and combined microfracture of damageable thermoelastoviscoplastic medium (A.B. Kiselev). A mathematical model for the formation and development of defects in metals (V.L. Kolmogorov et al.). Healing of metal microdefects after cold deformation (V.L. Kolmogorov, S.V. Smirnov). Definition of the form for kinetic equation of damage during the plastic deformation (S.V. Smirnov et al.). Damage Evaluation and Rupture. The influence of critical defect size in a ceramic of alumina elaborated by process sol-gel route (N.A. Almeida Camargo et al.). Defect evolution during machining of brittle materials (A. Chandra et al.). Modeling the influence of gradients in strength on the evolution of damage in metals (P.R. Dawson et al.). On the fracturing of brittle solids with microstructure (I.St. Doltsinis). Fracture prediction of sheet-metal blanking process (R. Hambli et al.). Elastic-plastic finite-element modeling of metal forming with damage evolution (P. Hartley et al.). Processing of zinc oxide varistors: sources of defects and possible measures for their elimination (A.N.M. Karim et al.). Analysis of metallic solid fractures by quasimolecular dynamics (Y.S. Kim, J.Y. Park). Damage framework for the prediction of material defects: identification of the damage material parameters by inverse technique (F. Lauro et al.). Damage influence in the finite element computations for large strains elastoplastic mechanical structures (P. Picart et al.). Microplasticity and tensile damage in Ti–15V–3Cr–3Ael–3Sn alloy and Ti–15V–3Cr–3Ael–3Sn/SiC composite (W.O. Soboyejo et al.). Strain Localization and Instability Analysis. Defects in hydraulic bulge forming of tubular components and their implication for design and control of the process (M. Ahmed, M.S.J. Hashmi). Numerical and experimental analysis of necking in 3D sheet forming processes using damage variable (M. Brunet et al.). Localization of deformation in thin shells with application to the analysis of necking in sheet metal forming (J.C. Gelin, N. Boudeau). Microcrack induced bifurcation of stress-strain relations for sintered materials (D.G. Karr, S.A. Wimmer). Instability analysis for ellipsoidal bulging of sheet metal (D.W.A. Rees). Formability Characterization. Compression of a block between cylindrical dies and its application to the workability diagram (S. Alexandrov et al.). Sheet metal formability predicted by using the new (1993) Hill's yield criterion (D. Banabic). Characterization of the formability for aluminum alloy and steel sheets (F. Barlat et al.). Material plastic properties defects and the formability of sheet metal (J. Bressan). Formability analysis based on the anisotropically extended Gurson model (E. Doege et al.). Rupture criteria during deep drawing of aluminum alloys (J. Proubet, B. Baudelet). Prediction of Shape Inaccuracies. Prediction of flange wrinkles in deep drawing (J. Cao et al.). Filling defects in ceramics forming process (F. Chinesta et al.). Localisation of debinding zone for fluid-particle flows in metal injection molding (M. Dutilly, J.C. Gelin). Simplified approaches for the prediction of deep-drawing ears (P. Gilormini, B. Bacroix). Springback and 'rebound' phenomenon analysis with the software PLIAGE (F. Morestin et al.). Prediction of elastic springback defects in sheet stamping processes using finite element methods (E. Oñate, J. Rojek). Creep deformation in heat treated components (T.C. Tszeng, W.T. Wu). A study of sharkskin defects of linear low density polyethylene (C. Venet et al.). Influence of Defects on Structural Integrity. Influence of initial imperfections on the collapse of thin walled structures (A. Combescure). On modeling of laminated composite structures featuring interlaminae imperfections (M. Di Sciuva et al.). Delamination, instability and failure of multilayered composites (E. Stein, J. Tessmer). Statistical damage tolerance for cast iron under fatigue loadings (H. Yaacoub Agha et al.).