Results 91 to 100 of about 52,446 (303)
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
A Variable-Stiffness Compliant Mechanism for Stiffness-Controlled Haptic Interfaces
, 2014 In this research a variable-stiffness compliant mechanism was developed to generate variable force-displacement profiles at the mechanisms coupler point.
Hawks, Jeffrey C
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Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Design, Dynamics Analysis, and Real-Time Stiffness Control of a Variable Stiffness Joint
, 2020 This paper proposes a variable stiffness joint based on a symmetrical crank slider mechanism (SCM-VSJ). Firstly, the mechanical design and the working principle of the variable stiffness joint is described, and its stiffness regulation characteristics ...
Zheng Yang +3 more
core +1 more source
Design and Evaluation of a Novel Variable Stiffness Hip Joint Exoskeleton
SensorsAn exoskeleton is a wearable device with human–machine interaction characteristics. An ideal exoskeleton should have kinematic and kinetic characteristics similar to those of the wearer.
Tao Yang +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang +2 more
wiley +1 more source
Study on a Variable Stiffness Mechanism Using Wire Spring
Journal of Robotics and Mechatronics, 2008 In this paper, we propose a variable stiffness mechanism using wire springs. We have proposed such kind of mechanism using nonlinear coil springs. We intend to apply it to continuous passive motion (CPM) machine. It can change the spring characteristic continuously. Its disadvantages are need for wide space and powerful motor to change stiffness.
openaire +1 more source
Advanced Engineering Materials, EarlyView.A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du +4 more
wiley +1 more source
Multi-tow shearing mechanism for high-speed manufacturing of variable angle tow composites
, 2012 An innovative tow steering technique using shear deformation characteristics of the dry tow material has been developed to minimize the process-induced defects by changing the most fundamental way of handling tow materials of all conventional AFP ...
Weaver, P. M. +5 more
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Design of compliant variable stiffness ball joint
, 2023 This study proposes a novel design of monolithic compliant variable torsional stiffness (VTS) mechanism whose stiffness can be tuned continuously. This mechanism is then used to create a compliant variable stiffness (VS) ball joint.
LEE, Tzu (author)
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