Stress–strain model of cement asphalt mortar subjected to temperature and loading rate

2016 ◽  
Vol 111 ◽  
pp. 164-174 ◽  
Author(s):  
Jin-feng Wang ◽  
Xi Wu ◽  
Xing-lang Fan ◽  
Yi-ri Chen
Keyword(s):  
Loading Rate ◽  
Stress Strain ◽  
Cement Asphalt Mortar ◽  
Strain Model ◽  
Asphalt Mortar

Dynamic Crushing Behavior of the High-Density Closed-Cell Foams

2011 ◽  
Vol 306-307 ◽  
pp. 485-488
Author(s):  
Wei Chen ◽  
Zi Xing Lu
Keyword(s):  
Aspect Ratio ◽  
Loading Rate ◽  
High Density ◽  
Stress Strain ◽  
Constant Loading ◽  
Closed Cell ◽  
Crushing Behavior ◽  
Strain Model ◽  
Constant Loading Rate ◽  
Dynamic Crushing

The face-centered cubic model is used to investigate the dynamic crushing behavior of high density closed-cell foams. The influences of the constant loading rate and the specimen aspect ratio on the crushing stress were discussed. It is demonstrated that the crushing stress is more sensitive to the constant loading rate than the specimen aspect ratio. To describe the dynamic crushing behavior of the foam theoretically, the idealized rigid-perfectly plastic-locking (RPPL) stress-strain model is extended to a more general case, in which both the density and the cross-section area are discontinuous. The good agreement between the finite element results and theoretical results confirms that the dynamic crushing behavior of foam can be described by the modified RPPL stress-strain model.

scholarly journals Analytical Stress–Strain model for steel spirals-confined UHPC

2021 ◽  
Vol 5 ◽  
pp. 100130
Author(s):  
Negar Naeimi ◽  
Mohamed A. Moustafa
Keyword(s):  
Stress Strain ◽  
Strain Model

scholarly journals Stress–strain relationship model of glulam bamboo under axial loading

2020 ◽  
Vol 29 ◽  
pp. 2633366X2095872
Author(s):  
Yang Wei ◽  
Mengqian Zhou ◽  
Kunpeng Zhao ◽  
Kang Zhao ◽  
Guofen Li
Keyword(s):  
Tensile Stress ◽  
Compressive Stress ◽  
Failure Modes ◽  
Axial Loading ◽  
Tensile Failure ◽  
Stress Strain ◽  
Laminated Bamboo ◽  
Bamboo Scrimber ◽  
Strain Relationship ◽  
Strain Model

Glulam bamboo has been preliminarily explored for use as a structural building material, and its stress–strain model under axial loading has a fundamental role in the analysis of bamboo components. To study the tension and compression behaviour of glulam bamboo, the bamboo scrimber and laminated bamboo as two kinds of typical glulam bamboo materials were tested under axial loading. Their mechanical behaviour and failure modes were investigated. The results showed that the bamboo scrimber and laminated bamboo have similar failure modes. For tensile failure, bamboo fibres were ruptured with sawtooth failure surfaces shown as brittle failure; for compression failure, the two modes of compression are buckling and compression shear failure. The stress–strain relationship curves of the bamboo scrimber and laminated bamboo are also similar. The tensile stress–strain curves showed a linear relationship, and the compressive stress–strain curves can be divided into three stages: elastic, elastoplastic and post-yield. Based on the test results, the stress–strain model was proposed for glulam bamboo, in which a linear equation was used to describe the tensile stress–strain relationship and the Richard–Abbott model was employed to model the compressive stress–strain relationship. A comparison with the experimental results shows that the predicted results are in good agreement with the experimental curves.

Simulating the lateral performance of FRP-confined RC circular columns using a new eccentric-based stress-strain model

2017 ◽  
Vol 180 ◽  
pp. 88-104 ◽  
Author(s):  
Ahmed M. Ismail ◽  
Mohamed F.M. Fahmy ◽  
Zhishen Wu
Keyword(s):  
Stress Strain ◽  
Strain Model

A stress-strain model for EL2 on the basis of chemical principles and its applications. II. Applications and discussion

1987 ◽  
Vol 5 (5-6) ◽  
pp. 207-210 ◽  
Author(s):  
Zou Yuanxi ◽  
Wang Guangyu ◽  
Wu Ju
Keyword(s):  
Stress Strain ◽  
Strain Model

A New Nonlinear Stress-Strain Model for Soils at Various Strain Levels

2013 ◽  
Vol 631-632 ◽  
pp. 782-788
Author(s):  
Cheng Chen ◽  
Zheng Ming Zhou
Keyword(s):  
Compression Test ◽  
Triaxial Compression ◽  
Small Strain ◽  
Empirical Formulas ◽  
Stress Strain ◽  
Strain Behaviour ◽  
Proposed Model ◽  
Nonlinear Stress ◽  
London Clay ◽  
Strain Model

Soils have nonlinear stiffness and develops irrecoverable strains even at very small strain levels. Accurate modeling of stress-strain behaviour at various strain levels is very important for predicting the deformation of soils. Some existing stress-strain models are reviewed and evaluated firstly. And then a new simple non-linear stress-strain model is proposed. Four undetermined parameters involved in the proposed model can be obtained through maximum Young’s module, deformation module, and limit deviator stress and linearity index of soils that can be measured from experiment directly or calculated by empirical formulas indirectly. The effectiveness of the proposed stress-strain model is examined by predicting stress-strain curves measured in plane-strain compression test on Toyota sand and undrained triaxial compression test on London clay. The fitting results of the proposed model are in good agreement with experimental data, which verify the effectiveness of the model.

scholarly journals Analytical Stress-Strain Model for FRP-Confined Rectangular RC Columns

2019 ◽  
Vol 5 ◽  
Author(s):  
Konstantinos G. Megalooikonomou ◽  
Georgios S. Papavasileiou
Keyword(s):  
Stress Strain ◽  
Rc Columns ◽  
Strain Model
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