Results 41 to 50 of about 1,646 (241)
Finite Element Implementation of a Temperature-Dependent Cyclic Plastic Model for SA508-3 Steel
Metals, 2018 A new temperature-dependent cyclic plastic model, combining the nonlinear cyclic softening and kinematic hardening rules is established for a nuclear material of SA508-3 steel.
Jun Tian +4 more
doaj +1 more source
Fractal and FractionalWithin the framework of elastoplastic theory, this study develops and improves a fractional cyclic constitutive model capable of describing rate-dependent ratcheting behavior by defining the ratcheting parameter as a function of the cumulative plastic ...
Xuehong Ren +5 more
doaj +1 more source
Applied Sciences, 2019 Ratcheting failure of materials and structures subjected to low cycle fatigue in the presence of significant mean stress is of great interest to researchers.
Navid Moslemi +4 more
doaj +1 more source
Modeling of ratcheting behavior under multiaxial cyclic loading
, 2019 A two-surface plasticity theory is used to predict ratcheting strain under multiaxial loading. A kinematic hardening rule that combines the Mroz and Ziegler hardening rules is employed along with the plastic modulus given as an exponential function of ...
Chen, X, Kim, KS
core +1 more source
Advanced Engineering Materials, EarlyView.This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca +9 more
wiley +1 more source
Self-loosening behavior of bolt in curvic coupling due to materials ratcheting at thread root
Advances in Mechanical Engineering, 2019 This article presents the bolt self-loosening mechanism in curvic coupling due to the structural ratcheting under cyclic loading. Finite element simulations are carried out under several loading conditions with different preloads and cyclic torque ...
Xiangjun Jiang +3 more
doaj +1 more source
Advanced Materials, EarlyView.Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim +5 more
wiley +1 more source
Fatigue- Ratcheting Interaction Behavior of AISI 4340 Steel [PDF]
, 2015 Ratcheting is known as accumulation of plastic strain during asymmetric cyclic loading of materials under non-zero mean stress. This study intends to investigate the ratcheting behavior in AISI 4340 steel which is mainly used for designing of railway ...
Divya Bharathi, K
core
, 2023 Purpose – This study focuses on ratcheting and budget behavior in nonprofit museums. Specifically, the authorsexamine how performance compared with the budget affects future revenue budgets, and how this differs from the extant literature focused on for ...
Bukh, Per Nikolaj; id_orcid +1 more
core +1 more source
Advanced Materials Interfaces, EarlyView.Programmable etherified‐starch networks enable humidity‐responsive soft actuators with tunable and reversible deformation. By tailoring crosslinking density and structural design, rapid response, controllable actuation, and long‐term stability are achieved.
Dan Zhou +13 more
wiley +1 more source