Results 21 to 30 of about 101,521 (301)

A fully implicit, lower bound, multi-axial solution strategy for direct ratchet boundary evaluation : implementation and comparison [PDF]

open access: yes, 2014
Ensuring sufficient safety against ratcheting is a fundamental requirement in pressure vessel design. However, determining the ratchet boundary using a full elastic plastic finite element analysis can be problematic and a number of direct methods have ...
Jappy, Alan   +2 more
core   +1 more source

Saturated duration for dynamic structural plastic response and fundamental periods of elastic vibration [PDF]

open access: yes, 1998
The relationship is determined between saturated duration of rectangular pressure pulses applied to rigid, perfectly plastic structures and their fundamental periods of elastic vibration.
赵亚溥   +1 more
core   +1 more source

Closed-form critical earthquake response of elastic-plastic structures on compliant ground under near-fault ground motions

open access: yesFrontiers in Built Environment, 2016
The double impulse is introduced as a substitute of the fling-step near-fault ground motion. A closed-form solution of the elastic-plastic response of a structure on compliant (flexible) ground by the ‘critical double impulse’ is derived for the first ...
Kotaro eKojima, Izuru eTakewaki
doaj   +1 more source

High resolution incremental stress testing of crushable granular materials [PDF]

open access: yesE3S Web of Conferences, 2019
The incremental behaviour of crushable sands is investigated by means of a Discrete Element Method (DEM) based analogue. The DEM sample is subjected to a comprehensive set of small stress perturbations in the triaxial plane in order to identify the basic
Ciantia Matteo   +2 more
doaj   +1 more source

Elastic-Plastic Response Charts for Nuclear Overpressures [PDF]

open access: yes, 1984
Abstract : The single-degree-of-freedom equation of motion for an elastic- plastic system with forcing functions that are representative of nuclear weapon simulations is nondimensionalized and solved. Numerical solutions are calculated by the Newmark Beta method, and response charts incorporating nondimensionalized structural and loading parameters for
S. A. Kiger, L. K. Guice
openaire   +1 more source

Structural integrity assessment of superheater outlet penetration tubeplate [PDF]

open access: yes, 2009
In recent years, the Linear Matching Method (LMM) has been well developed for the integrity assessment of the component subjected to cyclic thermal and mechanical loads.
Haofeng Chen   +3 more
core   +1 more source

Critical Earthquake Response of 2DOF Elastic-Perfectly Plastic Model Under Multiple Impulse as Substitute for Long-Duration Earthquake Ground Motions

open access: yesFrontiers in Built Environment, 2019
An equi-spaced consecutive impulse input is treated as a simplified representative for a long-duration earthquake ground motion. The key property of such input can be captured approximately by using harmonic waves.
Yoshito Saotome   +2 more
doaj   +1 more source

Comprehensive Review of Optimal and Smart Design of Nonlinear Building Structures With and Without Passive Dampers Subjected to Earthquake Loading

open access: yesFrontiers in Built Environment, 2021
The optimal and smart design of nonlinear building structures with and without passive dampers subjected to earthquake loading is of great concern in the structural design of building structures.
Izuru Takewaki, Hiroki Akehashi
doaj   +1 more source

Performance characteristics of recycled concrete aggregate as an unbound pavement material

open access: yesHeliyon, 2019
Use of recycled concrete aggregates (RCA) as a pavement material is one of the most sustainable engineering applications for the pavement industry. Investigation on the performance characteristics of RCA, such as elastic and plastic deformations of RCA ...
S. Jayakody, C. Gallage, J. Ramanujam
doaj   +1 more source

Bending deformation driven by molecular rotation

open access: yesPhysical Review Research, 2023
In recent years, certain molecular crystals have been reported to possess surprising flexibility by undergoing significant elastic or plastic deformation in response to mechanical loads. However, despite this experimental evidence, there currently exists
Pedro A. Santos-Florez   +2 more
doaj   +1 more source

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