Relevant bibliographies by topics / Composite materials – Creep – Mathematical models

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Composite materials – Creep – Mathematical models'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Composite materials – Creep – Mathematical models"

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Muc, Aleksander. "Introduction to Macroscopic Optimal Design in the Mechanics of Composite Materials and Structures." Journal of Composites Science 5, no. 2 (2021): 36. http://dx.doi.org/10.3390/jcs5020036.

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The main goal of building composite materials and structures is to provide appropriate a priori controlled physico-chemical properties. For this purpose, a strengthening is introduced that can bear loads higher than those borne by isotropic materials, improve creep resistance, etc. Composite materials can be designed in a different fashion to meet specific properties requirements.Nevertheless, it is necessary to be careful about the orientation, placement and sizes of different types of reinforcement. These issues should be solved by optimization, which, however, requires the construction of a
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Altenbach, H., and V. A. Fedorov. "Structural elastic and creep models of a UD composite in longitudinal shear." Mechanics of Composite Materials 43, no. 4 (2007): 289–98. http://dx.doi.org/10.1007/s11029-007-0028-9.

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Loganathan, Rubendran, and Bashar S. Mohammed. "Properties of Rubberized Engineered Cementitious Composites Containing Nano-Silica." Materials 14, no. 13 (2021): 3765. http://dx.doi.org/10.3390/ma14133765.

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To avoid explosive spalling during elevated temperature, crumb rubber (CR) is being added to the manufacturing of engineered cementitious composites (ECC). However, the addition of CR particles adversely affects the mechanical properties of ECC. Therefore, to overcome this issue, nano-silica (NS) is added into rubberized ECC mixture as cementitious material additives. Response surface methodology (RSM) has been utilized to optimize the mixtures of the rubberized ECC with variables: CR (0, 2.5, and 5 vol.%), polyvinyl alcohol (PVA) fiber (0, 1, and 2 vol.%), NS (0, 1, and 2 vol.%), and fly ash
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Yankovskii, A. P. "Analysis of the secondary anisotropic creep of layered metal-composite plates with account of their weakened resistance to the transverse shear 1. Structural models." Mechanics of Composite Materials 48, no. 1 (2012): 1–14. http://dx.doi.org/10.1007/s11029-012-9247-9.

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Autuori, Giuseppina, Federico Cluni, Vittorio Gusella, and Patrizia Pucci. "Mathematical models for nonlocal elastic composite materials." Advances in Nonlinear Analysis 6, no. 4 (2017): 355–82. http://dx.doi.org/10.1515/anona-2016-0186.

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AbstractIn this paper we derive and solve nonlocal elasticity a model describing the elastic behavior of composite materials, involving the fractional Laplacian operator. In dimension one we consider in (($\mathcal{D}$)) the case of a nonlocal elastic rod restrained at the ends, and we completely solve the problem showing the existence of a unique weak solution and providing natural sufficient conditions under which this solution is actually a classical solution of the problem. For the model (($\mathcal{D}$)) we also perform numerical simulations and a parametric analysis, in order to highligh
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BONDAREV, B. A., and T. N. STORODUBTSEVA. "Creep of Composite Materials and Mathematical Interpretation of Experimental Studies Results." Stroitel'nye Materialy 774, no. 9 (2019): 76–82. http://dx.doi.org/10.31659/0585-430x-2019-774-9-76-82.

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Koryagin, Sergey I., Oleg V. Sharkov, and Nikolay L. Velikanov. "Mathematical Models for Calculation of Crack Resistance of Composite Materials." Key Engineering Materials 736 (June 2017): 68–72. http://dx.doi.org/10.4028/www.scientific.net/kem.736.68.

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Crack resistance is an important parameter determining the carrying capacity and durability of composite materials in which as a binding element apply adhesive compositions. Estimation of crack resistance is usually carried out using an energy criterion – specific energy of crack propagation. Existing mathematical models to determine the value of crack resistance do not always give reliable results, because they can contain several dependent variables. In the article the mathematical models of the two types for calculation of crack propagation energy, which includes only one independent parame
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Camin, Bettina, and Lennart Hansen. "In Situ 3D-µ-Tomography on Particle-Reinforced Light Metal Matrix Composite Materials under Creep Conditions." Metals 10, no. 8 (2020): 1034. http://dx.doi.org/10.3390/met10081034.

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In transportation light metal matrix composites (L-MMCs) are used increasingly due to their improved creep resistance even at higher application temperatures. Therefore, the creep behavior and failure mechanisms of creep loaded particle reinforced L-MMCs have been investigated intensively. Until now, creep damage analyses are usually performed ex situ by means of interrupted creep experiments. However, ex situ methods do not provide sufficient information about the evolution of creep damage. Hence, in situ synchrotron X-ray 3D-µ-tomography investigations were carried out enabling time and spac
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Zhang, Chao, Jinhao Qiu, Yuansheng Chen, and Hongli Ji. "Modeling hysteresis and creep behavior of macrofiber composite–based piezoelectric bimorph actuator." Journal of Intelligent Material Systems and Structures 24, no. 3 (2012): 369–77. http://dx.doi.org/10.1177/1045389x12460337.

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Macrofiber composite–based bimorph actuators inherit the nonlinear properties of hysteresis and creep of piezoelectric materials, which limit the accuracy in real-time control. Many hysteresis models have been proposed, and generalized Maxwell slip model consisting of a series of nonlinear elements is one of the simplest and most efficient operators to describe symmetrical hysteresis. However, these hysteresis operators do not contain the creep behavior of piezoelectric materials. In this study, a hybrid model including a generalized Maxwell slip operator, a creep operator, and a dynamic model
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Khabaz-Aghdam, Ata, Bashir Behjat, Lucas F. M. da Silva, and E. A. S. Marques. "A new theoretical creep model of an epoxy-graphene composite based on experimental investigation: effect of graphene content." Journal of Composite Materials 54, no. 18 (2020): 2461–72. http://dx.doi.org/10.1177/0021998319895806.

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In this paper, the creep behavior of an epoxy-based adhesive reinforced with different weight fractions of graphene up to 0.5 wt% was studied. Creep tests were performed in three stress levels, using the ultimate strength of the neat epoxy as a reference. Results indicated that the presence of graphene up to 0.5 wt% reduces the creep strain and strain rate of the epoxy. However, the dominant behavior in the creep of epoxy–graphene composites is the creep pattern of the neat epoxy. These experimental observations led to development of theoretical creep models to an appropriate creep model for g
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Dissertations / Theses on the topic "Composite materials – Creep – Mathematical models"

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Muliana, Anastasia Hanifah. "Integrated Micromechanical-Structural Framework for the Nonlinear Viscoelastic Behavior of Laminated and Pultruded Composite Materials and Structures." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5142.

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This study introduces a new three-dimensional (3D) multi-scale constitutive framework for the nonlinear viscoelastic analysis of laminated and pultruded composites. Two previously developed nonlinear micromechanical models for unidirectional and in-plane random composite layers are modified to include time-dependent and nonlinear behavior. A new recursive-iterative numerical integration method is introduced for the Schapery nonlinear viscoelastic model and is used to model the isotropic matrix subcells in the two micromodels. In addition, a sublaminate model is used to provide for a through
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Strömbro, Jessica. "Micro-mechanical mechanisms for deformation in polymer-material structures." Doctoral thesis, KTH, Hållfasthetslära (Inst.), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4626.

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In this thesis, the focus has been on micro-mechanical mechanisms in polymer-based materials and structures. The first part of the thesis treats length-scale effects on polymer materials. Experiments have showed that the smaller the specimen, the stronger is the material. The length-scale effect was examined experimentally in two different polymers materials, polystyrene and epoxy. First micro-indentations to various depths were made on polystyrene. The experiments showed that length-scale effects in inelastic deformations exist in polystyrene. It was also possible to show a connection between
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Weber, Marc Anton. "The study of creep in machine elements using finite element methods." Master's thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/21954.

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Bibliography: pages 92-98.<br>In this thesis a simplified analysis procedure is developed, in which creep laws are decoupled from damage laws, for the purposb of constructing methods of use in the early stages of high temperature design. The procedure is based on the creep and damage laws proposed by Kachanov and Rabotnov. The creep laws are normalised. with respect to a convenient normalising stress. As a consequence of this normalisation, the dependence of the creep law on the stress constant, the time and temperature functions, and the actual load level is removed. In addition, if the refer
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Tang, Baobao. "Development of Mathematical and Computational Models to Design Selectively Reinforced Composite Materials." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10163313.

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<p> Different positions of a material used for structures experience different stresses, sometimes at both extremes, when undergoing processing, manufacturing, and serving. Taking the three-point bending as an example, the plate experiences higher stress in the middle span area and lower stress in both sides of the plate. In order to ensure the performance and reduce the cost of the composite, placement of different composite material with different mechanical properties, i.e. selective reinforcement, is proposed. </p><p> Very few study has been conducted on selective reinforcement. Therefor
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Jackson, Mitchell L. "Modeling the microwave frequency permittivity of thermoplastic composite materials." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06232009-063055/.

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Koh, Yeow Leung 1976. "In-situ structural health monitoring of composite repair patches." Monash University, Dept. of Mechanical Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/7698.

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Kilic, Mustafa Hakan. "Three-dimensional micromechanical models for the nonlinear analysis of pultruded composite structures." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/20735.

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Le, Riche Rodolphe. "Optimization of composite structures by genetic algorithms." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-164513/.

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Nagendra, Somanath. "Optimal stacking sequence design of stiffened composite panels with cutouts." Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06062008-170635/.

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Robbins, Donald H. "Hierarchical modeling of laminated composite plates using variable kinematic finite elements and mesh superposition." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/40117.

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Books on the topic "Composite materials – Creep – Mathematical models"

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Creep and fatigue in polymer matrix composites. Woodhead Publishing, 2011.

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Creep mechanics. 2nd ed. Springer, 2005.

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Lazić, Vera B. Mathematical theory of composite and prestressed structures. Matematički institut SANU, 2003.

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P, Samarin Yu. System analysis for creep in materials and structures. World Federation Publishers, 1996.

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Decolon, Christian. Analysis of composite structures. HPS, 2002.

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Decolon, Christian. Analysis of composite structures. Kogan Page Science, 2004.

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P, Panasenko G., ed. Homogenisation: Averaging processes in periodic media : mathematical problems in the mechanics of composite materials. Kluwer Academic Publishers, 1989.

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Kujala, Timo. Paikallisen ohentuman vaikutus tulistinputken elinikään. Valtion teknillinen tutkimuskeskus, 1989.

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Barbero, Ever J. Finite element analysis of composite materials. CRC Press, 2008.

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Finite element analysis of composite materials. Taylor & Francis, 2007.

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Book chapters on the topic "Composite materials – Creep – Mathematical models"

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Fok, Alex, and Hooi Pin Chew. "Debonding of Resin Composite Restorations." In Mathematical Models for Dental Materials Research. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37849-3_3.

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Fok, Alex, and Hooi Pin Chew. "Attenuation of Curing Light Through Resin Composite Restorations." In Mathematical Models for Dental Materials Research. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37849-3_4.

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Andrianov, Igor V., Jan Awrejcewicz, and Vladyslav V. Danishevskyy. "Models of Composite Materials and Mathematical Methods of Their Investigation." In Asymptotical Mechanics of Composites. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65786-8_2.

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Razdolsky, Leo. "Creep Laws for Composite Materials." In Phenomenological Creep Models of Composites and Nanomaterials. CRC Press, 2019. http://dx.doi.org/10.1201/b22416-2.

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"STATISTICAL MODELS FOR COMPOSITE MATERIALS." In Mathematical Statistics Theory and Applications. De Gruyter, 1987. http://dx.doi.org/10.1515/9783112319086-070.

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McMeeking, R. M. "Models for the creep of ceramic matrix composite materials." In High Temperature Mechanical Behaviour of Ceramic Composites. Elsevier, 1995. http://dx.doi.org/10.1016/b978-075069399-8/50010-4.

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Samal, M. K. "Numerical Simulation of High Temperature Deformation Behavior of Nickel-Based Superalloys Using Crystal Plasticity Models and Finite Element Method." In Mathematical Concepts and Applications in Mechanical Engineering and Mechatronics. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1639-2.ch020.

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Development of reliable computational models to predict the high temperature deformation behavior of nickel based super-alloys is in the forefront of materials research. These alloys find wide applications in manufacturing of turbine blades and discs of aircraft engines. The micro-structure of these alloys consists of the primary gamma-prime phase and the secondary and tertiary precipitates (of Ni3Al type) are dispersed as gamma-prime phases in the gamma-matrix. It is computationally expensive to incorporate the explicit finite element model of the micro-structure in a crystal plasticity based constitutive framework to simulate the response of the polycrystalline micro-structure. Existing models in literature do not account for these underlying micro-structural features which are important for simulation of polycrystalline response. The aim of this chapter is to present a physically-motivated multi-scale approach for simulation of high temperature response of Nickel-based super-alloys. At the lower length scale, a dislocation density based crystal plasticity model is developed which simulates the response of various types of micro-structures. The micro-structures are designed with various shapes and volume fractions of gamma-prime precipitates. A new model for simulation of the mechanism of anti-phase boundary shearing of the gamma-prime precipitates, by the matrix dislocations, is presented in this chapter. The lower scale model is homogenized as a function of various micro-structural parameters and the homogenized model is used in the next scale of multi-scale simulation. In addition, a new criterion for initiation of micro-twin and a constitutive model for twin strain accumulation are developed. This new micro-twin model along with the homogenized crystal plasticity model has been used to simulate the creep response of a single crystal nickel-based super-alloy and the results have been compared with those of experiment from literature. It was observed that the new model has been able to model the tension-compression asymmetry as observed in single crystal experiments.
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Phan-Thien, Nhan, and Sangtae Kim. "Fundamental Equations." In Microstructures in Elastic Media. Oxford University Press, 1994. http://dx.doi.org/10.1093/oso/9780195090864.003.0003.

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There is a need for theoretical and computational tools that provide macroscopic relations for a composite continuum, starting from a description of the composite microstructure. The outlook for this viewpoint is particularly bright, given current trends in high-performance parallel supercomputing. This book is a step along those directions, with a special emphasis on a collection of mathematical methods that together build a base for advanced computational models. Consider the important example of the effective bulk properties of fiberreinforced materials consisting of fibers of minute cross section imbedded in a soft elastic epoxy. The physical properties of such materials is determined by the microstructure parameters: volume fraction occupied by the fibers versus continuous matrix; fiber orientations; shape of the fiber cross sections; and the spatial distribution of fibers. Hashin notes that “While for conventional engineering materials, such as metals and plastics, physical properties are almost exclusively determined by experiment, such an approach is impractical for FRM (fiber-reinforced materials) because of their great structural and physical variety,” The analysis of warpage and shrinkage of reinforced thermoset plastic parts provides yet another example of the important role played by computational models. The inevitable deformation of the fabricated part is influenced by the interplay between constituent material properties, the composite microstructure and macroscopic shape of the component. Computational models play an important role in controlling these deformations to minimize undesired directions that lead to warpage and shrinkage. The strength, stiffness, and low weight of these materials all result from the combination of a dispersed inclusion of very high modulus imbedded in a relatively soft and workable elastic matrix. It thus appears reasonable, as a first approximation, to consider a theory for the distribution of rigid (infinite modulus) inclusions in an elastic matrix, reserving the bulk of our efforts for the study of the role of inclusion microstructure. A framework for computational modeling has been established for materials processing, using models of microstructure with simplified rules for the motion of the inclusions.
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Kosti, Siddhartha. "Nanomaterials and Nanocomposites Thermal and Mechanical Properties Modelling." In Nanotechnology in Aerospace and Structural Mechanics. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7921-2.ch007.

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This chapter deals with the modelling of nanomaterial and nanocomposite mechanical and thermal properties. Enrichment in the technology requires materials having higher thermal properties or higher structural properties. Nanomaterials and nanocomposites can serve this purpose accurately for aerospace or thermal applications and structural applications respectively. The thermal system requires materials having high thermal conductivity while structural system requires materials having high strength. Selection of the material for particular application is very critical and requires knowledge and experience. Al, Cu, TiO2, Al2O3, etc. are considered for thermal applications while epoxy-glass, FRP, etc. are considered for structural applications. Modelling of these nanomaterials and nanocomposites is done with the help of different mathematical models available in the literature. Results show that addition of the nanoparticle/composite in the base material can enhance the thermal and structural properties. Results also show that amount of weight percentage added also affects the properties.
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Kosti, Siddhartha. "Nanomaterials and Nanocomposites Thermal and Mechanical Properties Modelling." In Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-8591-7.ch008.

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This chapter deals with the modelling of nanomaterial and nanocomposite mechanical and thermal properties. Enrichment in the technology requires materials having higher thermal properties or higher structural properties. Nanomaterials and nanocomposites can serve this purpose accurately for aerospace or thermal applications and structural applications respectively. The thermal system requires materials having high thermal conductivity while structural system requires materials having high strength. Selection of the material for particular application is very critical and requires knowledge and experience. Al, Cu, TiO2, Al2O3, etc. are considered for thermal applications while epoxy-glass, FRP, etc. are considered for structural applications. Modelling of these nanomaterials and nanocomposites is done with the help of different mathematical models available in the literature. Results show that addition of the nanoparticle/composite in the base material can enhance the thermal and structural properties. Results also show that amount of weight percentage added also affects the properties.
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Conference papers on the topic "Composite materials – Creep – Mathematical models"

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Phoenix, S., and Pappu Murthy. "Pros and Cons of Proof Testing Carbon Composite Overwrapped Pressure Vessels: A Comparison of Two Mathematical Models." In 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics, 2007. http://dx.doi.org/10.2514/6.2007-2325.

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Mach, Robert, Jacob Pellicotte, Amanda Haynes, and Calvin Stewart. "Assessment of Long Term Creep Using Strain Rate Matching From the Stepped Isostress Method." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91137.

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Abstract Creep testing is an ongoing need, particularly with the development of new candidate alloy systems for advanced energy systems. The conventional creep test (CT) is regarded as a proven method to gather creep data however, the test is impractical due to being real-time: lasting up to 105 hours to characterize the service of long-lived turbomachinery components. Accelerated methods to gather the long-term creep properties of materials are needed to reduce the time to qualification of new materials. The time-temperature-stress-superposition principle (TTSSP) and the derivative time-tempe
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Aimmanee, Sontipee, Supharoek Trakarnkulchai, and Pakinee Aimmanee. "Micromechanics of a Smart Composite Actuator Embedded With Hollow Piezoelectric Fibers." In ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-5126.

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This paper presents a development of mathematical models for predicting the effective elastic and piezoelectric properties of a Smart Composite Actuator (SCA) reinforced with transversely isotropic piezoelectric hollow fibers. The models are established based on micromechanics of representative volume element of concentric cylinders or so-called concentric cylinder model (CCM). Five elastic constants and two piezoelectric coefficients are predicted as a function of fiber volume fraction, matrix volume fraction, and their constituents’ properties in the SCA. Numerical results of a chosen materi
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Miscia, Giuseppe, Enrico Bertocchi, Luca D’Agostino, Andrea Baldini, Enrico Dolcini, and Angelo Narducci. "Composite Materials in Automotive: Improving Safety by Refining FEA Correlation." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64564.

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In the last few years, the restrictive safety standards and the need for weight reduction have brought the crashworthiness research to focus on composite materials because of their high energy absortion-to-mass ratio. On the other hand, the possibility of obtaining predictive dynamic FEA models for these new materials is still an open issue: the present work aims at developing a methodology for the characterization of composite materials with particular interest for the head impact simulation. Composite materials behavior, defined through the mathematical models implemented in FEA codes, is ve
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Tan, David, Paul Yavarow, and Alper Erturk. "Nonlinear Structural Dynamics of Macro-Fiber Composite Cantilevers for Resonant Actuation." In ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/smasis2017-3927.

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Macro-fiber composite (MFC) piezoelectric materials are used in a variety of applications employing the converse piezo-electric effect, ranging from bioinspired actuation to vibration control. Most of the existing literature to date considered linear material behavior for geometrically linear oscillations. However, in many applications, such as bioinspired locomotion using MFCs, material and geometric nonlinearities are pronounced and linear models fail to represent and predict the governing dynamics. The predominant types of nonlinearities manifested in resonant actuation of MFC cantilevers a
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Djomseu, Patricia, Max A. Sardou, and Thomas R. Berg. "Composite Coil Spring Development and Testing." In IEEE/ASME/ASCE 2008 Joint Rail Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/jrc2008-63019.

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This paper will present the development of composite coil springs made from glass-fiber-epoxy materials. It will also review the results from prototype springs that have been manufactured and tested. Sardou S.A. has been developing and manufacturing composite structures and components of various designs for over 27 years. This experience, especially with composite torsion springs, has led to development, prototype production, and testing of several designs of composite coil springs. The design takes advantage of commercially available glass fiber and epoxy materials. The development process le
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Ashrafizadeh, Hossein, Ryan Schultz, Bo Xu, and Pierre Mertiny. "Development of a Novel Technique Using Finite Element Method to Simulate Creep in Thermoplastic Fiber Reinforced Polymer Composite Pipe Structures." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21529.

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Abstract High strength-to-weight ratio, excellent corrosion resistance, flexibility, superior fatigue performance, and cost competitiveness have made thermoplastic fiber reinforced polymer composites (TP-FRPCs) a material of choice for the manufacture of pipe products for use in the oil and gas industry. The TP matrix not only protects the composite structure from brittle cracking caused by dynamic loads, it also provides improved flexibility for bending of pipes to enable easier field installation and reduces the requirement for pre-fabricated bent connections. Despite the attractive mechanic
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Haque, Mohammad Shafinul. "Modification of the MPC Omega Model to Predict Primary and Tertiary Creep." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93100.

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Abstract The MPC Omega model has become popular in recent years for the prediction of creep deformation. Successful predictions of the tertiary creep for a wide range of materials are available. The Omega model relates the strain as a linear function of the natural logarithm of strain-rate. It is assumed that the primary creep is a short-lived phenomenon and can be neglected. The Omega model is unable to predict the primary creep deformation. Often primary creep is a long-lived phenomenon and cannot be neglected. A mathematical modification can be performed to incorporate the primary creep cur
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Liu, Fang, Hao Liang, Hang Yu, and Xiaomei Tang. "Research Development and Application of Solar Thermal Storage With Phase Change Materials." In ASME 2010 4th International Conference on Energy Sustainability. ASMEDC, 2010. http://dx.doi.org/10.1115/es2010-90331.

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Research on efficient and economical thermal storage technology becomes common issue to the scholars. Especially research on PCMs becomes hot spot these years. In view of the discontinuity and instability of solar energy, efficient and economic research on energy storage technology occupies a very important position. This article summarizes and evaluates the research development and applications of solar thermal storage technology with PCMs both in China and the other countries. Including four parts: A review on preparation of new composite phase change materials and its thermophysical propert
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Cai, Zijie, Jeffrey C. Suhling, Pradeep Lall, and Michael J. Bozack. "The Effects of Dopants on the Aging Behavior of Lead Free Solders." In ASME 2011 Pacific Rim Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/ipack2011-52184.

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The microstructure, mechanical response, and failure behavior of lead free solder joints in electronic assemblies are constantly evolving when exposed to isothermal aging and/or thermal cycling environments. Over the past several years, we have demonstrated that the observed material behavior variations of Sn-Ag-Cu (SAC) lead free solders during room temperature aging (25 C) and elevated temperature aging (50, 75, 100, 125, and 150 C) were unexpectedly large and universally detrimental to reliability. The measured stress-strain data demonstrated large reductions in stiffness, yield stress, ult
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