..., (d) Nb, (e) Ti, and (f) Zr with increasing hydrogen concentration At the microscopic level, to understand the effect of hydrogen on plastic deformation it is necessary to accurately quantify the shear modulus along respective slip systems. The shear modulus along the various slip systems can...

... models of four dual-phase sheets of steel, simulating and studying the plastic fracture of AHSS. Solving the relevant parameters enriches the stress triaxiality of the four steel types, establishes the relationship between the stress triaxiality and the equivalent strain to fracture, and verifies its...

... and T echnology . 29 05 2020 30 09 2020 30 09 2020 19 11 2020 dislocation dynamics plasticity neural network high entropy alloys stacking fault energy machine learning mechanical behavior High entropy alloy (HEA) is a new class of material that has many...

..., 2013. Assoc. Editor: Marwan K. Khraisheh. 04 06 2012 18 01 2013 A nonassociative plasticity model of Drucker–Prager yield surface coupled with a generalized nonlinear kinematic hardening is considered. Conforming to the plasticity model, two exponential-based methods, called fully...

...Farid Abed; Fadi Makarem This study investigates and compares several available plasticity models used to describe the thermomechanical behavior of structural steel subjected to complex loadings. The main purpose of this comparison is to select a proper constitutive model that can later...

... of the fraction of plastic energy converted into heat. The susceptibility of HSLA-100 steel to failure due to the formation and development of adiabatic shear bands (ASB) is investigated from two perspectives, the well-accepted failure strain criterion and the newly suggested plastic energy criterion [1]. Our...

...Rashid K. Abu Al-Rub; Mahmood Ettehad Experimental tests show that particle (inclusion or precipitate) size and interparticle spacing, besides volume fraction, have a considerable effect on the macroscopic mechanical response of metal matrix microreinforced composites. Classical (local) plasticity...

...Cécile Rogueda-Berriet; Nadia Bahlouli; Daniel Pessey; Yves Rémond By the 2000/53/CE directive, the European Union leads to develop the recycling process industry, specially the plastic one, for end of life vehicles (ELV). To value these recycled materials by an isofunction use, as for example...

...M. E. Kassner; P. Geantil; R. S. Rosen This study reports the significant ambient temperature creep plasticity at stresses below the conventional 0.2% plastic strain off-set yield stress. This is partially due to the relatively high strain-rate sensitivity of 304 stainless steel. Cold-working...

... in different maximum temperatures reached. 29 10 2009 27 09 2010 03 03 2011 03 03 2011 failure (mechanical) fatigue finite element analysis plasticity polymers softening strain control stress-strain relations thermoplastic polyurethane cyclic curve softening...

...Rashid K. Abu Al-Rub; Abu N. M. Faruk Plasticity in heterogeneous metallic materials with small volumes is governed by the interactions of dislocations at interfaces. In particular, interfaces of a material confined in a small volume can strongly affect the mechanical properties of micro...

... 02 12 2010 02 12 2010 carbon crystal microstructure filled polymers mechanical testing nanocomposites nanofabrication nanofibres optical microscopy plasticity thin films vacuum deposition Thin films have been deployed and applied in a variety of applications. Examples...

...Nripendu Dutta; Jahan Rasty The cold-expansion process is used routinely for improving the fatigue life of holes in a variety of components. The expansion process involves drawing a slightly oversized tapered mandrel through the hole. Upon expansion, the material near the hole deforms plastically...

... in an experimental program to cover a wide range of triaxiality and shear stress. Digital image correlation (DIC) is utilized to measure the fracture strain of the 2D specimens. Experiments are paired with simulations utilizing J 2 plasticity theory to complement the experiments and relate the fracture strain...

... considering minimum to maximum strain ratios of 0 and − 1 . The nonlocal equivalent plastic strain at the cracked intermetallic particles reveals overload effects manifested in two forms: (1) the cyclic plastic shear strain range is greater in the cycles following an initial tensile overstrain than without...

... report in literature covering such effects under cold bulk forming conditions. 21 01 2009 10 04 2009 05 11 2009 05 11 2009 deformation drawing (mechanical) microhardness plasticity stainless steel work hardening axisymmetric drawing work hardening redundant...

...D. Vangi; S. Tellini When measuring residual stresses using the hole-drilling strain-gauge method, plasticity effects arise if the residual stress level exceeds about 60% of the material yield strength. In this case the classical methods, which are based on the linear elastic material behavior, do...

... loading paths. In this context, this generalization considers a compressible and linear anisotropic granular elastic strain behavior coupled with damage. The model is expressed in the framework of the time dependent plasticity for a small strain assumption. It is assumed that a damage variable initiates...

...S. Groh; H. M. Zbib Discrete dislocation dynamics is a numerical tool developed to model the plasticity of crystalline materials at an intermediate length scale, between the atomistic modeling and the crystal plasticity theory. In this review we show, using examples from the literature, how...

... of theoretical frameworks, assessment of model predictive capabilities, and discovery of new physical phenomena. 24 02 2009 10 06 2009 01 09 2009 carbon nanotubes design of experiments elasticity micromechanical devices microswitches nanowires plasticity thin films...