Results 131 to 140 of about 2,128,627 (261)
On forced periodic solutions of superlinear quasi-parabolic problems
Electronic Journal of Differential Equations, 1998 We study the existence of periodic solutions for a class of quasi-parabolic equations involving the p-Laplacian (or any other nonlinear operators of similar class) perturbed by nonlinear terms and forced by rather irregular periodic in time excitations ...
Jose Luiz Boldrini, Janete Crema
doaj
Structural Concrete, EarlyView.Abstract Several test methods have been proposed in the literature for measuring the level of residual prestress, most of them involving either semi‐ or fully destructive techniques for local measurements which could be highly sensitive to boundary conditions and execution details.
Giuseppe Zarrella +2 more
wiley +1 more source
A nonlinear parabolic-Sobolev equation
Journal of Mathematical Analysis and Applications, 1975 AbstractLet M and L be (nonlinear) operators in a reflexive Banach space B for which Rg(M + L) = B and ¦(Mx − My) + α(Lx − Ly)¦ ⩾ | mx − My | for all α > 0 and pairs x, y in D(M) ∩ D(L). Then there is a unique solution of the Cauchy problem (Mu(t))′ + Lu(t) = 0, Mu(0) = v0.
openaire +1 more source
Serviceability reserves of historic reinforced concrete slabs implications for structural reuse
Structural Concrete, EarlyView.Abstract The transition to a circular economy in the construction sector requires reliable methods to assess whether existing reinforced concrete elements can be reused in new load‐bearing structures. A central question is whether slabs designed according to historical standards also meet today's serviceability requirements.
Robin Mecka +2 more
wiley +1 more source
Evaluating structural resistance and updating modeling uncertainties through testing
Structural Concrete, EarlyView.Abstract The aging of infrastructure necessitates a robust and rational methodology for the assessment of existing structures. Design codes provide general models which cover different design scenarios and are thus overly conservative. Also, such design approaches lack field data and, if applied directly to existing works, often lead to unnecessarily ...
Miguel Fernández Ruiz +4 more
wiley +1 more source
Structural Concrete, EarlyView.Abstract Structural monitoring and assessment can be used to ensure the long‐term performance of structures and inform when maintenance is required by accounting for the degradation of material properties. A key force‐resisting mechanism in reinforced concrete that must be considered as part of an assessment and that can degrade over time is tension ...
Jacob Yager +6 more
wiley +1 more source
Structural Concrete, EarlyView.Abstract Simplified closed‐form equations are commonly used in structural design to prevent punching shear failures of concrete flat slabs supported on columns in permanent and transient situations, whereas more advanced methods are generally used in verifications at accidental design situations due to the lack of suitable equivalent approaches ...
Maria Liapopoulou +3 more
wiley +1 more source
Structural Concrete, EarlyView.Abstract Blast loads impose extreme, short‐duration pressures that can cause severe structural damage and compromise safety, a crucial aspect in critical infrastructure, including nuclear facilities. Whereas ultra‐high‐performance concrete (UHPC) offers superior blast resistance compared to conventional concrete (CC) and high‐performance concrete (HPC),
Mohamad Tarabin, Ousmane A. Hisseine
wiley +1 more source
Lower bounds for the blow-up time of nonlinear parabolic problems with Robin boundary conditions
Electronic Journal of Differential Equations, 2014 In this article, we find a lower bound for the blow-up time of solutions to some nonlinear parabolic equations under Robin boundary conditions in bounded domains of R^n.
Khadijeh Baghaei, Mahmoud Hesaaraki
doaj
Parabolic Equations With Conservative Nonlinear Term And Singular Initial Data
, 2015 [No abstract available]30424892496Brezis, H., Friedman, A., Nonlinear parabolic equations involving measures as initial conditions (1983) J. Math. Pures Appl., 62, pp.
Cadeddu L., Gramchev T., Biagioni H.A.
core