Academic literature on the topic 'Plastic stiffness'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Plastic stiffness.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Plastic stiffness"

1

Kerimov, Abdulla, Gary Mavko, Tapan Mukerji, and Jack Dvorkin. "Static and dynamic effective moduli of elastic-perfectly plastic granular aggregates under normal compression." GEOPHYSICS 84, no. 5 (2019): MR185—MR194. http://dx.doi.org/10.1190/geo2018-0509.1.

Full text
Abstract:
Based on an existing simplified theoretical model for the normal contact interaction between two elastic-perfectly plastic spherical particles, we derived explicit expressions for the static and dynamic normal and dynamic tangential contact stiffnesses of elastic-perfectly plastic two-particle combination at pre-yield, yield, and post-yield conditions of normal loading. We used “static stiffness” or “loading stiffness” to refer to the slope of the force-displacement curve during monotonically increasing load. The “dynamic stiffness” or “unloading stiffness” refers to the stiffness that control
APA, Harvard, Vancouver, ISO, and other styles
2

Xianglin. "Performance Improvisation of Bituminous Roads using waste Plastic Material." International Journal of Civil, Environmental and Agricultural Engineering 1, no. 1 (2019): 54–61. http://dx.doi.org/10.34256/ijceae1918.

Full text
Abstract:
Utilization of waste plastic as a aggregate in bituminous mix results in weak bonding between the plastic and bitumen. This study reports on the feasibility of using plastic waste and chemical additives to improvise the performance and mechanical properties of bituminous mixtures. The selected recycled waste plastics were used as partial aggregate replacement in bituminous mix product. Strong oxidizing mixture of dichromate and sulphuric acid was used to treat the plastic, while the bitumen was treated with a cross linking agent, polyethylene mine. Three modified bituminous mixtures were prepa
APA, Harvard, Vancouver, ISO, and other styles
3

Pando, Miguel, George Filz, Carl Ealy, and Edward Hoppe. "Axial and Lateral Load Performance of Two Composite Piles and One Prestressed Concrete Pile." Transportation Research Record: Journal of the Transportation Research Board 1849, no. 1 (2003): 61–70. http://dx.doi.org/10.3141/1849-08.

Full text
Abstract:
Composite piles use fiber-reinforced polymers (FRPs), plastics, and other materials to replace or protect steel or concrete, with the intent being to produce piles that have lower maintenance costs and longer service lives than those of conventional piles, especially in marine applications and other corrosive environments. Well-documented field loading tests of composite piles are scarce, and this lack of a reliable database may be one reason that composite piles are not in widespread use for load-bearing applications. The purpose of this research is to compare the axial and lateral load behav
APA, Harvard, Vancouver, ISO, and other styles
4

Faragher, E., C. D. F. Rogers, and P. R. Fleming. "Laboratory Determination of Soil Stiffness Data for Buried Plastic Pipes." Transportation Research Record: Journal of the Transportation Research Board 1624, no. 1 (1998): 231–36. http://dx.doi.org/10.3141/1624-27.

Full text
Abstract:
The structural behavior of a buried flexible pipe is influenced by the applied surface loading, the pipe ring stiffness, and the stiffness of the surrounding soil. The pipe stiffness is governed by national standards and can be determined by testing. The more dominant surround stiffness depends on the soil type and its placement and is consequently greatly influenced by site installation processes. There is a relative lack of soil stiffness data, and much of the available data relates to more common installation conditions in the United States (i.e., installation beneath embankments). Describe
APA, Harvard, Vancouver, ISO, and other styles
5

Zhang, Yongquan, Hong Lu, Xinbao Zhang, et al. "A normal contact stiffness model of machined joint surfaces considering elastic, elasto-plastic and plastic factors." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 234, no. 7 (2019): 1007–16. http://dx.doi.org/10.1177/1350650119867801.

Full text
Abstract:
Considering the rough surface as a fractal model makes the research of contact parameters more practical. In the fractal model of the machined surface, the parameters describing the surface topography are independent of the measurement resolution. Based on the elastic, elasto-plastic and plastic deformations of a single pair of contact asperities, a normal contact stiffness model using the fractal model for surface topography description is proposed in this paper. The specimens machined by milling and grinding methods are used to verify the proposed contact stiffness model based on the fractal
APA, Harvard, Vancouver, ISO, and other styles
6

Bareišis, Jonas, Danas Garuckas, Alvydas A. Mikulskas, and Danguolė Striukienė. "STRAINS AND STRESSES OF THREE—LAYER COMPOSITE BARS AND BEAMS/TRISLUOKSNIŲ KOMPOZITINIŲ STRYPŲ IR SIJŲ DEFORMACIJOS BEI ĮTEMPIMAI." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 3, no. 10 (1997): 5–11. http://dx.doi.org/10.3846/13921525.1997.10531677.

Full text
Abstract:
New composite anisotropic materials (CM) glass, carbon and boric plastics are more and more frequently used in engineering construction. By tuning strength and stiffness characteristics of CM under tension or bending with their density or price it is possible to get laminated construction of maximum strength and stiffness and minimum mass or price. The purpose of this work is to analyse regularity of distribution of stiffness or strains and stresses in three-layer bars, subjected to tension or bending by changing geometric characteristics of layer, materials and their position in cross-section
APA, Harvard, Vancouver, ISO, and other styles
7

Lin, Wenlong. "A new expression to predict secant rotational stiffness of spudcan in undrained soils." E3S Web of Conferences 248 (2021): 03014. http://dx.doi.org/10.1051/e3sconf/202124803014.

Full text
Abstract:
The nonlinear behavior of spudcan foundation will lead to the decrease of the rotational stiffness of the spudcan, leading to the increase of the stress at the critical member of the offshore jack-up drilling platform. Secant rotational stiffness is used to represent the value of rotational stiffness of linear foundation model when the soil changes from elastic to elasto-plastic and then to plastic. In this paper, the “wished in-place” small strain finite element analysis (SSFE) analysis is used to simulate the load-displacement response of spudcans pre-embedded in the plastic soil, thus calcu
APA, Harvard, Vancouver, ISO, and other styles
8

Yang, Hongping, Xiaowei Che, and Cheng Yang. "Investigation of normal and tangential contact stiffness considering surface asperity interaction." Industrial Lubrication and Tribology 72, no. 3 (2019): 379–88. http://dx.doi.org/10.1108/ilt-03-2019-0072.

Full text
Abstract:
Purpose This paper aims to propose a normal and tangential contact stiffness model to investigate the contact characteristics between rough surfaces of machined joints based on fractal geometry and contact mechanics theory considering surface asperities interaction. Design/methodology/approach The fractal geometry theory describes surface topography and Hertz contact theory derives the asperities elastic, elastic-plastic and plastic contact deformation. The joint normal and tangential contact stiffness are obtained. The experiment method for normal and tangential contact stiffness are introduc
APA, Harvard, Vancouver, ISO, and other styles
9

MOY, S. S. J., R. A. SHENOI, and H. G. ALLEN. "STRENGTH AND STIFFNESS OF FIBRE-REINFORCED PLASTIC PLATES." Proceedings of the Institution of Civil Engineers - Structures and Buildings 116, no. 2 (1996): 204–20. http://dx.doi.org/10.1680/istbu.1996.28288.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

SHUGYO, MINORU, YOSHIHIRO HAYATA, JIAN NIAN XU, and HIDESUMI TANIGUCHI. "ELASTIC-PLASTIC TANGENT STIFFNESS MATRIX OF TUBULAR MEMBERS." Journal of Structural and Construction Engineering (Transactions of AIJ) 400 (1989): 91–99. http://dx.doi.org/10.3130/aijsx.400.0_91.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Plastic stiffness"

1

Alameddine, Fadel 1964. "FLEXURAL STIFFNESS OF CIRCULAR REINFORCED CONCRETE COLUMNS (SLENDERNESS, ACI CODE, LOAD, DESIGN)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276368.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Weber, Martin [Verfasser], and Holm [Gutachter] Altenbach. "Material plasticity : evolution of the stiffness tetrad in fiber materials with large plastic strain / Martin Weber ; Gutachter: Holm Altenbach." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2020. http://d-nb.info/1226932037/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Pazesh, Samaneh. "Process-induced disorder of pharmaceutical materials : Mechanisms and quantification of disorder." Doctoral thesis, Uppsala universitet, Institutionen för farmaci, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-317801.

Full text
Abstract:
One of the most important prerequisites in the drug development is to attain a reproducible and robust product in terms of its nature, and its chemical and physical properties. This can be challenging, since the crystalline form of drugs and excipients can be directly transformed into the amorphous one during normal pharmaceutical processing, referred to as process-induced amorphisation or process-induced disorder. The intention of this thesis was to address the mechanisms causing disorder during powder flow and milling and, in association with this, to evaluate, the ability of Raman spectrosc
APA, Harvard, Vancouver, ISO, and other styles
4

Keating, Elspeth. "Lightweighting of stiffness critical advanced high strength steel structures using fibre reinforced plastics." Thesis, University of Warwick, 2016. http://wrap.warwick.ac.uk/89185/.

Full text
Abstract:
In the drive for lightweighting in many industries, optimum material selection is at the forefront of research. Many solutions are being investigated, including the fabrication of multi-material components. Following a state of the art review of the literature, it has been shown that there is an opportunity to improve basic knowledge and understanding of the characteristics of hybrid steel-FRP materials for lightweight applications. This dissertation explores the potential for designing lightweight automotive steel structures through novel use of lower gauges combined with local reinforcement
APA, Harvard, Vancouver, ISO, and other styles
5

Klusková, Jana. "Využití polymerů do konstrukcí vozovek pozemních komunikací." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-410117.

Full text
Abstract:
The diploma thesis deals with the use of recycled polymers in asphalt mixtures. In the theoretical part of the thesis there is discussed the global issue of plastic waste including the experience of foreign countries, where this technology has already been introducted and used. The practical part is devoted to the proposal of using recycled plastic in asphalt mixture, description of used laboratory tests and the evaluating the effect of low-density polyethylen (LDPE) on the asphalt mixture type AC. There were performed tensile strenght tests, water resistant tests and stiffness modulus tests i
APA, Harvard, Vancouver, ISO, and other styles
6

Huang, Chien-Chih, and 黃健誌. "Accelerated Tests of Long-term Plastic Pipe Stiffness." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/44153370645658255093.

Full text
Abstract:
碩士<br>國立屏東科技大學<br>土木工程系所<br>97<br>The Contents of Abstract in this thesis: Conventional long-term and Rate Process Method (RPM) procedures were used to investigate the long term pipe stiffness of plastic pipes. HDPE corrugated drainage pipe, PVC and ASB jacking pipes were used in the study. The nominal diameter of the test pipes is 300 mm. ASTM D2412 standard test method with the parallel-plate loading mechanism was used in the study. The load associated with 5% pipe diameter deflection according to the standard test method was determined as the Conventional Pipe Stiffness (CPS) for each test
APA, Harvard, Vancouver, ISO, and other styles
7

Yip, Chih-Ming, and 葉致鳴. "Plastic Analysis of Cable-Stayed Bridges by using Increment-Varied Stiffness Method." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/20917373508750136760.

Full text
Abstract:
碩士<br>中原大學<br>土木工程研究所<br>95<br>The aim of this thesis concerns with the plastic analysis of cable-stayed bridges by using Increment-Varied Stiffness Method. A finite element computation procedure using Increment-Varied Stiffness Method is set up for the nonlinear plastic analysis of such kind of structures to evaluate the ultimate load-carrying capacity. Several simple rigid frames, truss and three different types of cable-stayed bridges are selected in this thesis. In the Increment-Varied Stiffness method the nonlinear plastic problem is treated as a piecewise linearized problem. The nonlinea
APA, Harvard, Vancouver, ISO, and other styles
8

ZHNG, CHANG-ZHI, and 曾長智. "Vertical dynamic stiffness of embedded foundation in an ealasto plastic soil medium." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/02896232545933289786.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Battley, Mark Andrew. "Off-axis stiffness characterisation of fibre reinforced plastics." 1993. http://hdl.handle.net/2292/2513.

Full text
Abstract:
A new theoretical characterisation is developed for the off-axis stiffness of FRP materials. The theoretical model treats an off-axis unidirectional ply as an inhomogeneous material, and considers the effect of rigid body rotations of the fibres within the matrix material. Linear analytical, and nonlinear finite element solutions are developed for the model. The differences between the new model and the traditional homogenous orthotropic characterisation are functions of both the strain level, and the relative modulus ratio (Ef/Em) of the constituent materials. For relative constituent moduli
APA, Harvard, Vancouver, ISO, and other styles
10

Wang, Jaubih, and 王昭弼. "The Test Mechanisms for Long-term Pipe Stiffness of Plastics Pipe." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/18664274002572593688.

Full text
Abstract:
碩士<br>國立屏東科技大學<br>土木工程系碩士班<br>93<br>Plastic pipes are flexible and consist of good corrosion resistance. Pipe stiffness is an important design factor for predicting its deflection under long term loading. The convention and accelerated long-term pipe stiffness of PVC, ABS, HDPE pipes under parallel-plate loading mechanism was investigated. The nominal inside diameter of the test pipes are 300 and 400mm. Initial pipe stiffness is proportional to its young’s modulus and inverse proportional to its SDR three-degree power ratio. In general, the initial pipe stiffness of PVC pipe is greater than th
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Plastic stiffness"

1

Roland, Hernandez, and Forest Products Laboratory (U.S.), eds. Strength and stiffness of reinforced yellow-poplar glued-laminated beams. U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Roland, Hernandez, and Forest Products Laboratory (U.S.), eds. Strength and stiffness of reinforced yellow-poplar glued-laminated beams. U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Oehlers, Deric, and Rudolph Seracino. Design of FRP and Steel Plated RC Structures: Retrofitting Beams and Slabs for Strength, Stiffness and Ductility. Elsevier Science, 2004.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Design of FRP and Steel Plated RC Structures: Retrofitting Beams and Slabs for Strength, Stiffness and Ductility. Elsevier Science, 2004.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Plastic stiffness"

1

Hu, Qi, Li Yun-Gui, and Lu Xilin. "A Elastic Plastic Damage Model for Concrete Considering Strain Rate Effect and Stiffness Damping." In Communications in Computer and Information Science. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24999-0_59.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Raggi, F. "Seismic Analyses of Menta Embankment Dam: An Elasto-Plastic Model with a Stress-Strain Dependent Stiffness and a Composite Yielding Surface." In Lecture Notes in Civil Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51085-5_34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Wong, M. Bill. "Structural Analysis—Stiffness Method." In Plastic Analysis and Design of Steel Structures. Elsevier, 2009. http://dx.doi.org/10.1016/b978-0-7506-8298-5.00001-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Amorosi, A., G. Mitaritonna, and F. Cotecchia. "Plastic strain-induced small strain stiffness anisotropy: A multi-scale experimental evidence." In Geomechanics from Micro to Macro. CRC Press, 2014. http://dx.doi.org/10.1201/b17395-234.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

de Buhan, Patrick, Jérémy Bleyer, and Ghazi Hassen. "Applications of the Multiphase Approach Part 1: Static and Dynamic Stiffness of Piled Raft Foundations." In Elastic, Plastic and Yield Design of Reinforced Structures. Elsevier, 2017. http://dx.doi.org/10.1016/b978-1-78548-205-2.50005-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Mamaghani, Iraj H. P. "Application of Discrete Finite Element Method for Analysis of Unreinforced Masonry Structures." In Computational Modeling of Masonry Structures Using the Discrete Element Method. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0231-9.ch017.

Full text
Abstract:
In this chapter, through some illustrative examples, the applicability of the Discrete Finite Element Method (DFEM) to analysis of unreinforced masonry structures such as rock pillars, open rock slopes, underground openings, tunnels, fault propagations, and fault-structure interactions is examined and discussed. In the numerical study, the behavior of contacts and blocks is assumed to be elasto-plastic or elastic. The Mohr-Coulomb yield criterion, representing material behavior of contacts, is implemented in the developed codes for DFEM used in the analysis. The secant stiffness method with the updated Lagrangian scheme is employed to deal with non-linear behavior. The constant strain triangular element with two degrees of freedoms at each node, formed by properly joining the corners and contact nodes of an individual block, is adopted for finite element meshing of the blocks. The DFEM provides an efficient and promising tool for designing, analyzing, and studying the behavior of unreinforced masonry structures.
APA, Harvard, Vancouver, ISO, and other styles
7

"Modulus and stiffness." In Mechanical Evaluation Strategies for Plastics. CRC Press, 2001. http://dx.doi.org/10.1201/9781439822777.ch3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Kobayashi, Shiro, Soo-Ik Oh, and Taylan Altan. "Three-Dimensional Problems." In Metal Forming and the Finite-Element Method. Oxford University Press, 1989. http://dx.doi.org/10.1093/oso/9780195044027.003.0017.

Full text
Abstract:
A majority of the finished products made by metal forming are geometrically complex and the metal flow involved is of a three-dimensional nature. Thus, any analysis technique will become more useful in industrial applications if it is capable of solving three-dimensional metal-flow problems. Nagpal and Altan introduced dual-stream functions for describing metal flow in three dimensions. This work showed that the proper selection of a flow function makes the incompressibility requirement automatically satisfied and provides general kinematically admissible velocity fields. Yang and Lee utilized the conformal transformation of a unit circle onto a cross-section in the analysis of curved die extrusion. They derived the stream-line equation from which a kinematically admissible velocity field was determined. The upper-bound method was then applied to determine the extrusion pressure for a rigid-perfectly plastic material. An important aspect of three-dimensional plastic deformation is the analysis of spread in metal-forming operations, such as spread in rolling or in flat tool forging, and spread in compression of noncircular disks. Solutions to such problems have been obtained by the use of Hill’s general method and the upper-bound method. The extension of the finite-element method to solve three-dimensional problems is natural and not new, particularly in the area of elasticity. However, the simulation of three-dimensional forming operations by the finite-element method is relatively recent. Park and Kobayashi described the formulation for the three-dimensional rigid-plastic finite-element method and the implementation of the boundary conditions. They applied this technique to the analysis of block compression between two parallel flat platens. For certain forming problems, such as those involving lateral spread, the use of a simplified three-dimensional element is efficient and some examples can be found for analysis of spread in rolling and flat tool forging. The matrices for evaluation of elemental stiffness equations are defined for a three-dimensional brick element in Chap. 6 and some of them are recapitulated in this section. A three-dimensional brick element used for the analysis is an eight-node hexahedral isoparametric element.
APA, Harvard, Vancouver, ISO, and other styles
9

"Modulus and stiffness anisotropy." In Mechanical Evaluation Strategies for Plastics. CRC Press, 2001. http://dx.doi.org/10.1201/9781439822777.ch7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Moore, D. R., and S. Turner. "Modulus and stiffness anisotropy." In Mechanical Evaluation Strategies for Plastics. Elsevier, 2001. http://dx.doi.org/10.1533/9781855737495.141.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Plastic stiffness"

1

Hsieh, Chiwan Wayne, Chien-Chih Huang, and Jau-Bih Wang. "Long-Term Plastic Pipe Stiffness Measured by Conventional and Accelerated Procedures." In International Conference on Pipeline Engineering and Construction. American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40934(252)113.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Johnson, Joshua, Charles McKeel, and Daniel Leduc. "Influence of Restraint Stiffness and Preload on Distribution of Reaction Loads." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63248.

Full text
Abstract:
With recent advancements in the production of plastic materials the use of woven plastic webbings (Nylon, Polyester, etc) has increased due to decreased cost, increased load rating, greater ease of use over chains, and an increasingly proven history of use. However a common misconception is that chains and plastic webbing can be interchanged as long as the webbing has a sufficient load rating. Packages in transport are commonly secured by an arrangement of rigid blocks (chock blocks) at the base and chains, cables, or straps to the top. Analysts are apt to evaluate restraint loads by distribut
APA, Harvard, Vancouver, ISO, and other styles
3

Peng, He, Zhansheng Liu, Guilong Wang, and Min Zhang. "Rotor Dynamic Analysis of Tie-Bolt Fastened Rotor Based on Elastic-Plastic Contact." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45796.

Full text
Abstract:
The tie-bolt fastened rotor which is assembled by rods distributed circumferentially is modeled and analyzed by finite element method with the consideration of elastic-plastic contact between discs. Based on elastic-plastic contact model between an elastic hemisphere and a rigid plane, the contact between discs is investigated by the statistical contact model of rough surfaces, and the contact stiffness is derived. The equivalent bending stiffness between discs is acquired. With the increase of the load between the two contact surfaces, the difference between the contact stiffness of purely el
APA, Harvard, Vancouver, ISO, and other styles
4

Homma, Hiroomi, Gatot Prayogo, and Yasuhiro Kanto. "Degradation of bending strength and stiffness in glass-fiber-reinforced plastic under repeated raindrop impact." In Intl. Conf. on Experimental Mechanics: Advances and Applications, edited by Fook S. Chau and C. T. Lim. SPIE, 1997. http://dx.doi.org/10.1117/12.269836.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Arai, Masayuki, Shoichi Kuroda, and Kiyohiro Ito. "Elastic-Plastic Analysis of Pipe Structure by Transfer Matrix Method." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93169.

Full text
Abstract:
Abstract Pipe systems have been widely used in industrial plants such as power stations. In these systems, it is often required to predict the displacement and stress distribution. Analytical and numerical methods such as the finite element method (FEM), boundary element method (BEM), and frame structure method (FSM) are typically adopted to predict the displacement and stress distribution. The analytical methods are solved based on the Timoshenko beam theory, but the problem that can be solved is limited to simple geometry under simple boundary conditions. Both FEM and BEM can be applied to m
APA, Harvard, Vancouver, ISO, and other styles
6

Ahmed, Mahbub, Md R. Islam, Justin Vanhoose, Lionel Hewavitharana, Aaron Stanich, and Mohammad Hossain. "Comparisons of Bending Stiffness of 3D Printed Samples of Different Materials." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65119.

Full text
Abstract:
3D printing technology has become more affordable than ever before. Today 3D printers are not only used for making prototypes but are also being used to make good quality 3D parts for different purposes. A wide variety of filament materials are used in the market. Finding bending stiffness of different plastic filaments is the particular interest in the current study. The purpose of the project is to investigate the bending stiffness of different 3D printed beam samples. A series of samples for performing bending tests were designed using a solid modeling tool. These samples were printed with
APA, Harvard, Vancouver, ISO, and other styles
7

Xie, Qin, Geng Liu, Tianxiang Liu, Ruiting Tong, and Quanren Zeng. "Elasto-Plastic Asperity Contacts of Layered Media." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63812.

Full text
Abstract:
An elasto-plastic asperity contact model for layered media is developed in the work reported in this paper to analyze the influences of coating-substrate materials on contact when yielding and the strain-hardening properties of materials are taken into account. The finite element method, the initial stiffness method and the mathematical programming technique are employed to solve the model. The von Mises yield criterion is used to determine the inception of plastic deformation. The effects of different layer thickness and different coating-substrate materials on the contact pressure, real area
APA, Harvard, Vancouver, ISO, and other styles
8

Frolovs, Girts, Janis Sliseris, Karlis Rocens, and Vadims Goremikins. "Optimal design of rational fiber orientation for variable stiffness plywood-plastic plate – numerical and experimental investigations." In Proceedings of the International Conference „Innovative Materials, Structures and Technologies”. Riga Technical University, 2014. http://dx.doi.org/10.7250/iscconstrs.2014.06.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Takahashi, Tsuneo, and Akira Maekawa. "Seismic Response Reduction in Piping Systems Using Plastic Deformation of Pipe Support Structures." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78052.

Full text
Abstract:
This study describes inelastic seismic design of piping systems considering the effect of plastic deformation of a pipe support structure. The damping coefficient of a piping system is focused on, and the relation between seismic response of the piping system and elastic-plastic behavior of the support structure was studied using nonlinear time history analysis and complex eigenvalue analysis. The analysis results showed that the maximum seismic response acceleration of the piping system decreased largely in the area surrounded by pipe elbows including the support structure which allowed plast
APA, Harvard, Vancouver, ISO, and other styles
10

Takahashi, Tsuneo, and Akira Maekawa. "Analytical Study on Effect of Failure of Pipe Support Structure on Seismic Response of Piping System." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97222.

Full text
Abstract:
This study discussed seismic response of a piping system when the pipe support structure was deformed plastically on being subjected to a much larger seismic load than the designed one. This case is expected as one of the conditions beyond seismic design that should be analyzed. To examine the effect of elastic-plastic deformation of the pipe support structure on seismic response, the effect of various shapes and failure mode of support structures was investigated. Difference of failure modes of the pipe support structure was modeled by change of initial stiffness and secondary stiffness of th
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Plastic stiffness"

1

EXPERIMENTAL STUDY ON SEISMIC PERFORMANCE OF PEC COMPOSITE COLUMN-STEEL BEAM FRAME WITH WELDED T-STUB STRENGTHENED CONNECTIONS. The Hong Kong Institute of Steel Construction, 2021. http://dx.doi.org/10.18057/ijasc.2021.17.3.5.

Full text
Abstract:
Seismic performance of innovative Partially Encased Composite (PEC) column-steel beam composite frame was investigated, where the connection was strengthened by the welded T-stub. A ½ scale, two-storey, and one bay composite frame specimen was designed and fabricated for the quasi-static test. Through the experimental observation and measurements, the seismic performance were evaluated, including hysteretic characteristic, lateral stiffness, seismic energy dissipation, and ductility. The plastic damage evolution process and ductile failure mode were clarified. The results indicated that the we
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!