... May 8, 2013. Assoc. Editor: Jefferey Kysar. 01 05 2011 28 03 2013 The deformation of substrate caused by laser scanning pattern during direct laser fabrication (DLF) is ignored in spite of its importance to the final dimension accuracy. In this paper, in order to investigate...

... expression, T α , is extensively discussed. Then, emphasis is put on the stress-strain behavior in tension and compression over the low deformation range covering the elastic, anelastic, and viscoplastic response. The reported data depend, as expected, on temperature and strain rate and also, markedly...

... that the developed biaxial tensile test device was able to accurately apply not only uniaxial but also biaxial tensile stress to a single-crystal silicon (SCS) film specimen. 23 05 2011 21 10 2011 08 12 2011 08 12 2011 deformation elemental semiconductors internal stresses Raman...

... experimental results show that HSLA-100 steel has apparent strain rate sensitivity at rates exceeding 3000 s −1 and has minimal ability to store energy of cold work at high deformation rate. In addition, both strain based and energy based failure criteria are effective in describing the propensity of HSLA-100...

... by Albipox and Timberset. CB10TSS has the highest ductility with the highest elongation under tensile deformation; therefore the most energy is required to initiate cracks and to subsequently propagate them. In Charpy impact tests for unnotched specimens, the addition of rubbery particles does not improve...

...Calvin M. Stewart; Ali P. Gordon; Erik A. Hogan; Ashok Saxena Creep deformation and rupture experiments are conducted on samples of the Ni-base superalloy directionally solidified GTD-111 tested at temperatures between 649 ° C and 982 ° C and two orientations (longitudinally and transversely...

... ). During the scratch test, a concurrent interaction of normal and tangent load appeared in the contact zone of a sample surface/indented tip. The adjacent surfaces were subject to complex stresses and deformations, leading to reaching border values. The technique is used in order to obtain controlled...

... to determine residual deformation and stresses. Algorithmic consistent moduli for elastoplastic deformations including transformation plasticity are also obtained. Leblond’s phase evolution equation, coupled with the energy equation, is employed to calculate the phase volume fraction; this plays an important...

... consequence, a yield function has been established, which depends, besides effective stress variables, on specific functions of damage. The present paper addresses the capabilities of the model in predicting responses of deformation processes with complex specimen geometry. In particular, multiple notched...

... loss of crystallinity in the nanocomposites at high temperatures. This indicates that structural arrangement, not the phase change, is a factor controlling thermal conduction as a function of temperature. The nanocomposite deformation mechanism is a trade-off between the stress concentration caused...

...José A. Alvarado-Contreras; Maria A. Polak; Alexander Penlidis In this article, the description of a novel damage-coupled constitutive formulation for the mechanical behavior of semicrystalline polyethylene is presented. The model attempts to describe the deformation and degradation processes...

... mode, have been studied. It was found that formability LDH and failure location depended on weld location, and LDH increased when weld line was positioned at the extreme positions away from the center due to more uniform strain distribution on the deformed dome. The welded blanks had lower formability...

... , A. A. , and Young , K. P. , 1988 , “ Semi-Solid Metal Casting and Forming ,” Metal Handbook , 9th ed. , Vol. 15 , pp. 327 – 338 . Seo , P. K. , Young , S. W. , and Kang , C. G. , 2002 , “ The Effect of Test Specimen Size and Strain-Rate on Liquid Segregation in Deformation Behavior...

...Julie Colin; Ali Fatemi; Said Taheri This paper discusses cyclic deformation and fatigue behaviors of stainless steel 304L and aluminum 7075-T6. Effects of loading sequence, mean strain or stress, and prestraining were investigated. The behavior of aluminum is shown not to be affected by preloading...

... deformation. The model was able to shed more light over the earlier empirical speculations. By combining experimental observations and modeling results, the presence of physical chain entanglements in the amorphous phase was demonstrated to be the controlling factor in strain hardening behavior...

... in area related through a “ Δ ” parameter. The average strain in the product is evaluated through a redundant deformation coefficient, “ ϕ ,” which has a minimum value of unity and rises as Δ is increased. Anomalous experimental results for this relationship ( ϕ values below unity and insensitive...

...Andrea Aginagalde; Xabier Gomez; Lander Galdos; Carlos García Aluminum 6XXX alloys show high strength to weight ratios and are thus promising materials for today’s transport industry lightweight construction efforts. When considering both deformation and final mechanical properties, high ductility...

... evolution of a bioimplant material made from ultra high molecular weight polyethylene during processing. Experimental results show that the anisotropy introduced during deformation increases wear resistance in desired directions. After uniaxial compression, wear resistance along the direction, perpendicular...

..., we examined the local formability of two commercial dual phase (DP) 980 steels which exhibit noticeably different formability during the stamping process. Microstructure-based finite element analyses are carried out to simulate the localized deformation process with the two DP 980 microstructures...

... the evolution of damage under monotonic loading condition in a near α IMI-834 titanium alloy, used for aeroengine components in compressor module. The damage model parameters have been experimentally identified by in situ measurement of damage during monotonic deformation using alternating current potential...