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Error estimation and h-adaptive refinement in the analysis of natural frequencies
(ELSEVIER SCIENCE BV, 2001-12-01)
This paper deals with the estimation of the discretization error and the definition of an optimum h-adaptive process in the finite element analysis of natural frequencies and modes. Consistent and lumped mass matrices are ...
Constitutive modelling of the mechanical response of a polycaprolactone based polyurethane elastomer: Finite element analysis and experimental validation through a bulge test
(Professional Engineering Publishing Ltd, 2021-05)
The mechanical behaviour of a high performance polycaprolactone based polyurethane elastomer (PCL) up to large strain levels, cyclic loading and equibiaxial stress has been assessed. The PCL can be categorised as a rubber-like ...
On the issue that finite element discretizations violate, nodally, Clausius postulate of the second law of thermodynamics
(Springer, 2016-12)
Discretization processes leading to numerical schemes sometimes produce undesirable effects. One potentially serious problem is that a discretization may produce the loss of validity of some of the physical principles or ...
Finite-element modelling of heat transfer in shaped metal deposition and experimental validation
(Pergamon-Elsevier Science Ltd, 2012-11)
Shaped metal deposition (SMD) is a novel technology for building near-net-shaped components by successive layer deposition using a welding machine. The SMD rig consists of a robot with a tungsten inert gas welding torch ...
Simultaneous ply-order, ply-number and ply-drop optimization of laminate wind turbine blades using the inverse finite element method
(Elsevier, 2018-01)
This paper presents a novel methodology to simultaneously determine the optimal ply-order, ply-number and ply-drop configuration of laminate wind turbine blades using simulation-based optimization, considering the shape ...
Error estimates for Raviart-Thomas interpolation of any order on anisotropic tetrahedra
(American Mathematical Society, 2011-01)
We prove optimal order error estimates for the Raviart-Thomas interpolation of arbitrary order under the maximum angle condition for triangles and under two generalizations of this condition, namely, the so-called ...
An hp finite element adaptive scheme to solve the Laplace model for fluid-solid vibrations
(Elsevier Science Sa, 2011-01)
In this paper we introduce an hp finite element method to solve a two-dimensional fluid-structure spectral problem. This problem arises from the computation of the vibration modes of a bundle of parallel tubes immersed in ...
Effect of phase transformation onset temperature on residual stress in welded thin steel plates
(2008-12)
The effect of solid-state phase transformation at low temperature on residual stresses in butt welded ferritic thin steel plates has been examined employing a finite element (FE) code. An algorithm considering the solidstate ...
Reliable, Built-in, High-Accuracy Force Sensing for Legged Robots
(2006-06-28)
An approach for achieving reliable, built-in, high-accuracy force sensing for legged robots is presented, based on direct exploitation of the properties of a robot’s mechanical structure. The proposed methodology relies ...