... 2022 08 08 2022 09 08 2022 07 10 2022 U71Mn rail steel shear failure behaviors hat-shaped specimen microstructure constitutive model finite element analysis fracture mechanical behavior microstructure property relationships National Natural Science Foundation...

...Junzhou Yang; Jianjun Wu; Dongshen Yang; Qishuai Wang; Kaiwei Wang; Zengkun Zhang; Mingzhi Wang; Muhammad Muzamil A physically based constitutive model with internal state variables (ISVs) is established, it is used to describe the flow stress and microstructure evolution of Ti–6Al–4V alloy...

...Bhasker Paliwal; Youssef Hammi; Mei Chandler; Robert D. Moser; Mark F. Horstemeyer A new dynamic strain rate-dependent elasto-viscoplastic damage constitutive model for ultrahigh-performance concrete (UHPC) is developed by incorporating Duvaut–Lions viscoplasticity generalized to multisurface...

... 03 2015 The predictive capability of the Sehitoglu–Boismier unified constitutive and life model for Mar-M247 Ni-base superalloy is extended from a maximum temperature of 871 °C to 1038 °C. The unified constitutive model suitable for thermomechanical loading is adapted and calibrated using...

... viscoplasticity yield stress thermal stress residual stress finite element high-level waste thermomechanical process constitutive model Residual stress plays a significant role in the failure of engineering materials. They are an inevitable consequence of most manufacturing processes. Residual...

... on the material behavior. For the amorphous phase, a novel damage-coupled constitutive model is proposed based on incompressible non-Gaussian network theory (e.g., Ref. 27 ) and Arruda and Boyce’s eight-chain model ( 28 ). The microscopic deterioration is modeled considering an isotropic damage variable...

.... Elastomer foam materials have very complicated material behaviors. The prediction of the rate responsive behavior is one of the most interesting topics in elastomer material modeling. The focus of this article is to present a unique method for deriving the rate dependent constitutive model of an elastomer...

... treatment dislocation density grain size ductility elongation stress-strain relations AA6111 SPD ECAP constitutive model grain size There exists a growing demand for aluminum sheet with a favorable combination of strength and ductility to compete with steel for light-weighting...

...Yan Wang; Ellen M. Arruda A microstructually motivated, three-dimensional, large deformation, strain rate dependent constitutive model has been developed for a semi-crystalline, blended, thermoplastic olefin (TPO) ( Wang, Y., 2002, Ph.D. thesis, The University of Michigan, Ann Arbor, MI ). Various...

.... This “saw-tooth” pattern is a result of stretch-induced unfolding of modules along the molecular chain and is speculated to play a governing role in the function of biological materials and structures. In this paper, constitutive models for the large strain deformation of networks of modular macromolecules...

...Rebecca B. Dupaix; Dwarak Krishnan Recently, a hyperelastic-viscoplastic constitutive model was developed for PET and the noncrystallizing copolymer PETG ( R. B. Dupaix, Ph.D. thesis, MIT, 2003 ). The materials were found to behave very similarly under monotonic loading conditions and the single...

.... The effect of finite temperature is accounted for via the local harmonic approximation, which relates the entropy to the vibration frequencies of the system, and the latter are determined from the interatomic potential. The focus of this theory is to establish the continuum constitutive model in terms...