Results 21 to 30 of about 33,878 (148)

Research on Quasi-Elastic–Plastic Optimization of Reinforced Concrete Frame–Shear Wall Structures

Buildings
Precise determination of structural elastic–plastic displacement and component states under rare earthquakes is crucial for structural design. This article proposes a quasi-elastic–plastic optimization method for reinforced concrete structures. First, an
Fengling Jin, Bo Hu, Jianlu Zhou, Boqing Gao, Qiankun Zhang   +4 more
doaj   +1 more source

Proppant embedment behavior and elastic–plastic embedding depth modeling of coal reservoirs under multi-stage loading

Meitan xuebao
To investigate the elasto-plastic embedment behavior of proppant during coalbed methane (CBM) production, a mechanical testing system equipped with a high-precision displacement sensor was used to design and conduct proppant-embedment tests under multi ...
Wei LIU, Xuanshi ZHU, Yuanlong WEI, Fuping ZHAO, Lingyun ZHAO, Tengda HUANG, Jianghao LI   +6 more
doaj   +1 more source

Comparisons Between Pull-Out Behaviour of Various Hooked-End Fibres in Normal–High Strength Concretes

International Journal of Concrete Structures and Materials, 2019
In this paper an elastic–plastic response has been developed to predict the pull-out behaviour of various hooked end fibres embedded in normal–high strength concretes.
Sadoon Abdallah, David W. A. Rees
doaj   +1 more source

A New Unified Solution for Circular Opening considering Different Strength Criteria and the Postpeak Elastic Strain Form

Advances in Civil Engineering, 2020
The strength criterion is an extremely important basis for evaluating the stability of surrounding rock and optimizing the support pressure design. In this paper, nine different strength criteria are summarized and simplified based on the reasonable ...
Xuyang Shi, Wei Zhou, Liang Chen, Qingxiang Cai, Ming Li, Zhaolin Li, Boyu Luan   +6 more
doaj   +1 more source

Helical single-walled carbon nanotubes under mechanical and electrostatic loading

Carbon Trends, 2022
Here, we characterize the axial response of helical single-walled carbon nanotubes (HSWCNTs) to mechanical and electrostatic loads, separately. The study considers low-pitch (closed) and high-pitch (open) HSWCNTs of different number of turns in their ...
Aningi Mokhalingam, Shakti S. Gupta
doaj   +1 more source

Critical earthquake response of elastic-plastic structures under near-fault ground motions (Part 2: Forward-directivity input)

Frontiers in Built Environment, 2015
The triple impulse input is used as a simplified version of the forward-directivity near-fault ground motion and a closed-form solution of the elastic-plastic response of a structure by this triple input is obtained.
Kotaro eKojima, Izuru eTakewaki
doaj   +1 more source

A strategy to formulate data-driven constitutive models from random multiaxial experiments

Scientific Reports, 2022
We present a test technique and an accompanying computational framework to obtain data-driven, surrogate constitutive models that capture the response of isotropic, elastic–plastic materials loaded in-plane stress by combined normal and shear stresses ...
Burcu Tasdemir, Antonio Pellegrino, Vito Tagarielli   +2 more
doaj   +1 more source

Learning the non-proportional multiaxial elastic–plastic response of an aluminium alloy with neural networks

Materials & Design
We present a surrogate model for the elastic–plastic response of an aluminium alloy, based on simple neural networks trained on measurements taken in tension–torsion and compression-torsion experiments.
Burcu Tasdemir, Antonio Pellegrino, Xinyu Su, Vito L. Tagarielli   +3 more
doaj   +1 more source

Critical earthquake response of a SDOF elastic‐perfectly plastic model with viscous damping under double impulse as a substitute for near‐fault ground motion

Japan Architectural Review, 2018
The double‐impulse input is introduced as a substitute for the fling‐step near‐fault ground motion, and a closed‐form solution for the approximate elastic‐plastic response of a structure with viscous damping under the “critical double impulse” is derived.
Kotaro Kojima, Yoshito Saotome, Izuru Takewaki   +2 more
doaj   +1 more source

Critical earthquake response of elastic-plastic structures under near-fault ground motions (Part 1: Fling-step input)

Frontiers in Built Environment, 2015
The double impulse input is introduced as a substitute of the fling-step near-fault ground motion and a closed-form solution of the elastic-plastic response of a structure by the ‘critical double impulse input’ is derived.
Kotaro eKojima, Izuru eTakewaki
doaj   +1 more source