Results 81 to 90 of about 2,838 (227)

A study on plastic strain accumulation caused by traveling of temperature distribution synchronizing with temperature rise

Mechanical Engineering Journal, 2016
The prevention of excessive deformation by thermal ratcheting is important in the design of high-temperature components of fast breeder reactors (FBR). This includes evaluation methods for a new type of thermal ratcheting caused by an axial traveling of ...
Satoshi OKAJIMA
doaj   +1 more source

Linear matching method for design limits in plasticity

, 2010
In this paper a state-of-the-art numerical method is discussed for the evaluation of the shakedown and ratchet limits for an elastic-perfectly plastic body subjected to cyclic thermal and mechanical load history. The limit load or collapse load, i.e. the
Chen, Haofeng
core  

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

, 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, Chen, Haofeng, Mackenzie, Donald   +2 more
core   +1 more source

Study on Cyclic Tensile Shakedown Behaviour of Flexible Risers Considering Winding Process

Journal of Marine Science and Engineering
Flexible risers are subjected to significant tensile loads during manufacturing, installation, and in-service phases, and they experience multiple cyclic tensile loads throughout their entire service life.
Shanghua Wu, Junyu Liu, Ersu Shang, Xiufeng Yue, Zhuoyuan Shen   +4 more
doaj   +1 more source

Repeated loading model for elastic–plastic contact of geomaterial

Advances in Mechanical Engineering, 2018
A new nonlinear hysteretic model with considering the loading, unloading, and reloading processes is developed based on Drucker–Prager yield criterion and finite-element analysis.
Jian Wang, Qimin Li, Changwei Yang, Caizhi Zhou   +3 more
doaj   +1 more source

Elastic shakedown analysis of axisymmetric nozzles

, 2003
An investigation of the shakedown behavior of axisymmetric nozzles under internal pressure is presented. The analysis is based on elastic-plastic finite element analysis and Melan's lower bound shakedown theorem.
Muscat, Martin, Mackenzie, D.
core   +1 more source

Research on High-Speed Railway Subgrade Design Method Based on Energy Dissipation and Dynamic Stability Characteristics

Applied Sciences
The subgrade structure of high-speed railways is an important foundation for the safe and smooth operation of high-speed trains, and the scientific design of the subgrade structure provides a fundamental guarantee of its durability and technical economy.
Zongqi Bi, Yangsheng Ye, Degou Cai, Hongye Yan, Mingzhe Ouyang, Ke Su   +5 more
doaj   +1 more source

On a theorem of shakedown theory [PDF]

Vietnam Journal of Mechanics, 1986
None
openaire   +2 more sources

Influence of Moisture on the Shakedown Behavior of Fine Soils for Sustainable Railway Subballast Layers

Infrastructures
This study investigates the influence of moisture on the mechanical behavior of fine soil mixtures from the São Luís region, applied as subballast layers in railway track structures. Two samples were analyzed: a non-lateritic sandy soil (NA’, AM03) and a
William Wilson dos Santos, Gleyciane Almeida Serra, Lisley Madeira Coelho, Sergio Neves Monteiro, Gabriel de Carvalho Nascimento, Antônio Carlos Rodrigues Guimarães   +5 more
doaj   +1 more source

Shakedown of Thick Cylinders With Radial Openings Under Thermomechanical Loadings

, 2011
Shakedown and ratcheting behaviors of thick-walled cylindrical vessels with radial openings subjected to cyclic thermomechanical loadings are investigated by the inelastic finite element analysis.
X. T. Zheng, F. Z. Xuan
core   +1 more source