Results 1 to 10 of about 12,129,309 (293)
Strain gradient effects on concrete stress–strain curve [PDF]
Proceedings of the Institution of Civil Engineers - Structures and Buildings, 2012 The stress–strain characteristic of concrete developed in flexure is one of the essential parameters for the ultimate flexural strength design of reinforced concrete (RC) members. Currently, the stress–strain curve of concrete developed in flexure is obtained by scaling down the uniaxial stress–strain curve.
Ho, JCM, Peng, J
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Stress gradient effects in fretting fatigue
Tribology International, 2003 This paper highlights the importance of high stress gradients in fretting fatigue. These pose a serious difficulty in attempting to employ plain fatigue data to predict fretting fatigue performance. Stress gradient effects may also be responsible for a size effect which is found to occur in many fretting situations.
David Nowell, Daniele Dini
exaly +3 more sources
Is notch sensitivity a stress analysis problem? [PDF]
Fracture and Structural Integrity, 2013 Semi–empirical notch sensitivity factors q have been widely used to properly account for notch effects in fatigue design for a long time. However, the intrinsically empirical nature of this old concept can be avoided by modeling it using sound mechanical
Jaime Tupiassú Pinho de Castro +1 more
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3D thickness effects around notch and crack tip stress/strain fields [PDF]
Fracture and Structural Integrity, 2015 Notches and cracks are usually approximately modeled as two-dimensional problems using solutions from plane elasticity to quantify localized stress/strain concentration effects around their tips. However, they may be associated with high gradients that
R.C.O. Góes +2 more
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Frontiers in Earth Science, 2022 When studying the influence of nonlinear seepage on the water flooding development of ultra-low permeability reservoirs, it is difficult to accurately characterize the nonlinear seepage state of ultra-low permeability reservoirs using conventional ...
Xiang Luo +6 more
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Modeling of extra strengthening in gradient nanotwinned metals based on molecular dynamics
Frontiers in Materials, 2022 Gradient nanotwinned metals exhibit extra strengthening and work hardening behaviors, which have enormous potential for engineering applications. In this study, molecular dynamics method is performed for analyzing the effects of nanotwinned structure ...
Zailin Yang +6 more
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New method for introducing gradient stress into rock-burst prediction
Yantu gongcheng xuebao, 2020 During the excavation of underground projects, the tangential stress in the surrounding rock near the cave wall is distributed in a gradient because of the disturbance of excavation unloading in the deep rock mass.
HE Jia-qi 1, LIN Man-qing 1, LIU Xi-qi 2, ZHANG Lan 1, ZHANG Dian-ji 1, XIONG Wen 2, PENG Ya-li 3
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Hydrogen diffusion under the effect of stress and temperature gradients [PDF]
Journal of Physics: Conference Series, 2021 Abstract In this paper, a finite element (FE) model is developed to investigate lattice hydrogen diffusion in a solid metal under the influence of stress and temperature gradients. This model is applied to a plate with a circular hole which is subjected to temperature and hydrogen concentration gradients.
Zhang, Z. (author) +3 more
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Ecological Indicators, 2022 The effects of neighboring vegetation are important for plant fitness and community assembly under global change. What is less clear is how plant-plant interactions would change along the stress gradient.
Jun Wang +5 more
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Journal of Materiomics, 2021 A ZrC-SiC and TC4 gradient structure (ZTGS) was additively manufactured through the laser deposition technique and brazing process. The research results indicated that SiC-reinforced TC4-based gradient layers could be obtained on the TC4 surface by laser
Qian Wang +6 more
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