Results 1 to 10 of about 2,857,310 (288)
Buckling versus unilateral constraint for a multistable metamaterial element [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2022 A structural element is designed and investigated, forming the basis for the development of an elastic multistable metamaterial. The leitmotif of the structural design is the implementation of a strut characterized by a bifurcation occurring at either ...
N. Hima, D. Bigoni, F. Dal Corso
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Theoretical Study of a Multidimensional Pressureless Model with Unilateral Constraint [PDF]
SIAM Journal on Mathematical Analysis, 2017 The aim of this paper is to extend to multidimensions the study of a pressureless model of a gas system with unilateral constraint. Several difficulties are added with respect to the one-dimensional case. Indeed the geometry of the dynamics of blocks cannot be conserved and to solve this problem, we approximate the motion of each block by discrete ...
F. Berthelin
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Multi-point support reaction forces calculation based on unilateral constraint
Advances in Mechanical EngineeringPreventing overturning of construction machinery necessitates precise calculation of support reaction forces. The primary challenges reside in: (1) statically indeterminate force distributions, (2) indeterminacy of ground-contact states at support points.
Tianyu Wang +3 more
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Frontiers in Bioengineering and Biotechnology, 2021 Introduction: Cerebral palsy (CP) is the leading cause of childhood-onset physical disability. Children with CP often have impaired upper limb (UL) function. Constraint-induced therapy (CIT) is one of the most effective UL interventions for children with
Hao-Ling Chen +8 more
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An Elastic Frictional Contact Problem with Unilateral Constraint
Mediterranean Journal of Mathematics, 2018 We consider a mathematical model which describes the equilibrium of an elastic body in contact with two obstacles. We derive its weak formulation which is in a form of an elliptic quasi-variational inequality for the displacement field. Then, under a smallness assumption, we establish the existence of a unique weak solution to the problem.
Maxime Couderc, M. Sofonea
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BMC Pediatrics, 2018 Background Upper limb (UL) deficits in children with unilateral cerebral palsy (uCP) have traditionally been targeted with motor execution treatment models, such as modified Constraint-Induced Movement Therapy (mCIMT).
Cristina Simon-Martinez +12 more
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Geometric representation of detachment conditions in systems with unilateral constraint [PDF]
Regular and Chaotic Dynamics, 2008 Summary: Mechanical systems with unilateral constraints that can be represented in the contact mode on the phase plane are considered. On the phase plane we construct domains that satisfy the following conditions 1) a detachment from the constraint is impossible; 2) the sign of the constraint reaction corresponds to its unilateral character.
A. P. Ivanov
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Realization of the brachistochronic motion of Chaplygin sleigh in a vertical plane with an unilateral nonholonomic constraint [PDF]
Theoretical and Applied Mechanics, 2023 The paper considers the procedure for determining the brachistochronic motion of the Chaplygin sleigh in a vertical plane, where the blade is such that it prevents the motion of the contact point in one direction only.
Obradović Aleksandar M. +3 more
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A micromechanics-informed phase field model for brittle fracture accounting for the unilateral constraint [PDF]
Engineering Fracture Mechanics, 2020 We propose a new direction-dependent model for the unilateral constraint involved in the phase field approach to fracture and also in the continuous damage mechanics models.
Yangyuanchen Liu +3 more
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Tykhonov triples and convergence results for hemivariational inequalities
Nonlinear Analysis, 2021 Consider an abstract Problem P in a metric space (X; d) assumed to have a unique solution u. The aim of this paper is to compare two convergence results u'n → u and u''n → u, both in X, and to construct a relevant example of convergence result un → u ...
Rong Hu, Mircea Sofonea, Yi-Bin Xiao
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