Results 11 to 20 of about 5,952,087 (275)

Characterising plastic collapse of pipe bend structures [PDF]

open access: yes, 2006
Two recently proposed design by analysis criteria of plastic collapse based on plastic work concepts, the plastic work (PW) criterion and the plastic work curvature (PWC) criterion, are applied to a strain hardening pipe bend arrangement subject to ...
Li, Hongjun, Mackenzie, Donald
core   +4 more sources

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

open access: yes, 2013
Ensuring sufficient safety against ratchet is a fundamental requirement in pressure vessel design. Determining the ratchet boundary can prove difficult and computationally expensive when using a full elastic-plastic finite element analysis and a number ...
Jappy, Alan   +2 more
core   +4 more sources

Bounding of earthquake response via critical double impulse for efficient optimal design of viscous dampers for elastic‐plastic moment frames

open access: yesJapan Architectural Review, 2022
An input velocity adjustment method of the critical double impulse (DI) is presented for efficient design of viscous dampers for elastic‐plastic moment frames.
Hiroki Akehashi, Izuru Takewaki
doaj   +1 more source

Gross plastic deformation of axisymmetric pressure vessel heads [PDF]

open access: yes, 2006
The gross plastic deformation and associated plastic loads of four axisymmetric torispherical pressure vessels are determined by two criteria of plastic collapse: the ASME twice elastic slope (TES) criterion and the recently proposed plastic work ...
Camilleri, D.   +5 more
core   +4 more sources

Reaching the Yield Point of a Glass During X-Ray Irradiation

open access: yesPhysical Review X, 2023
A solid loaded beyond the yield stress loses its elastic properties and becomes plastic. From a microscopic point of view, this limit corresponds to the condition where plastic regions become so densely packed that they give rise to system-spanning ...
Alessandro Martinelli   +6 more
doaj   +1 more source

Critical response of 2DOF elastic-plastic building structures under double impulse as substitute of near-fault ground motion

open access: yesFrontiers in Built Environment, 2016
The double impulse is introduced as a substitute of the fling-step near-fault ground motion and a critical elastic-plastic response of a 2DOF (two-degree-of-freedom) building structure under the ‘critical double impulse’ is evaluated.
Ryo eTaniguchi   +2 more
doaj   +1 more source

Parametric plastic collapse loads and their validation for horizontal saddle supported storage vessels [PDF]

open access: yes, 2003
In general, progressive plastic collapse occurs in vessels with low values of R/t ratio, typically less than 200, and elastic-plastic buckling is observed in vessels with higher R/t ratios. The aim of this paper is to examine various theoretical analyses
Spence, J., Nash, D.H.
core   +3 more sources

Critical Steady-State Response of Single-Degree-of-Freedom Bilinear Hysteretic System under Multi Impulse as Substitute of Long-Duration Ground Motion

open access: yesFrontiers in Built Environment, 2017
A set of multiple impulses is introduced as a substitute of many-cycle harmonic waves which represent the long-duration earthquake ground motion. A closed-form expression is derived of the elastic–plastic response of a single-degree-of-freedom structure ...
Kotaro Kojima, Izuru Takewaki
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

Dynamic Response Analysis of Elastic-plastic Structures with Component Mode Synthesis

open access: yesMATEC Web of Conferences, 2017
This paper evaluates the validity of component mode synthesis (CMS) technique for dynamic response of elastic-plastic structures. A method incorporating elastic-plastic material behaviour and the fixed interface mode synthesis technology is presented. To
Qian Peng-bo
doaj   +1 more source

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