This text offers a systematic and practical introduction to the discontinuous finite element method. It moves from a brief review of the fundamental laws and equations governing thermal and fluid systems, through a discussion of different approaches to the formulation of discontinuous finite element solutions for boundary and initial value problems, to their applicaton in a variety of thermal-system and fluid-related problems. Mesh generation and adaptivity, parellelization algorithms and error analysis are also introduced and explained. Each chapter features worked examples and exercises illustrating situations ranging from simple benchmarks to practical engineering questions. The book forms a foundation of senior undergraduate and graduate learning and also provides scientists, applied mathematicians and research engineers with a thorough treatment of basic concepts, specific techniques and methods for the use of discontinuous Galerkin methods in fluid dynamics and heat transfer applications.
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I'm looking for a European (or any other) standard where the measuring and experimental determination of Poisson's ratio and Shear modulus is described for concrete.
Proceedings of the International Symposium on Engineering Lessons Learned from the 2011 Great East Japan Earthquake.
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Structural engineers are concerned with the consequences of shrinkage, creep and cracking on the serviceability and durability of their structures. Creep increases deflections, reduces prestress in prestressed concrete elements, and causes redistribution of internal force resultants in redundant structures. Shrinkage can cause warping of slabs on grade due to differential drying and increased deflections of non-symmetrically reinforced concrete elements. Materials scientists are concerned with understanding the basic phenomena and assessing new materials and the effects of admixtures on the mechanical behavior of concrete.
Concrete is an age stiffening material that has little tensile strength, shrinks, and exhibits creep in sealed conditions and additional creep in drying environments. Predicting the amount of shrinkage and deflection that may occur is not easy and is especially complicated in concrete that contains supplementary materials, chemical admixtures, and lightweight aggregates. Supplementary cementing materials and waste products are being used in increasing volumes in response to environmental concerns. Admixtures have been developed to modify the behavior of fresh and hardened concrete. Self consolidating concrete is being used in more applications. A recent development is the marketing of shrinkage reducing admixtures.
This volume contains papers presented during four sessions sponsored by ACI Committee 209, Creep and Shrinkage in Concrete, and ACI Committee 231, Properties of Concrete at Early Ages, held at the Spring 2005 Convention. The subjects addressed by the authors are diverse and cover many aspects of shrinkage and creep. Some papers pay special attention to the development, use, and evaluation of models to predict shrinkage, creep, and deflection, while other papers consider the behavior of early age concretes that are restrained from shrinking, resulting in the development of residual stress and cracking.
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Influence of Axial Stress on Shear Response of Reinforced Concrete Elements
Author: Liping Xie, Evan C. Bentz, and Michael P. Collins | Size: 1 MB | Format:PDF | Quality:Unspecified | Publisher: Structural Journal | Year: November 1, 2011 | pages: 10 | ISBN: Volume:108, Issue:6
Abstract:
There is strong disagreement between different code provisions as to the influence of axial stress on shear strength. To examine this influence, six nominally identical reinforced concrete elements representing web regions of girders or walls were loaded under different ratios of longitudinal axial stress to shear stress. The results demonstrated that the application of the basic ACI 318-08 shear approach can significantly overestimate both the beneficial effect of compression on shear and the detrimental effect of tension on shear strength. The ACI 318-08 simple expression for the benefits of compression gave excellent predictions, whereas the simple expression for tension was very conservative. The CSA A23.3-04 shear provisions based on the modified compression field theory (MCFT) provided the best code-based estimates of the shear strength. The full MCFT provided not only the best estimates of conditions at failure—including failure shear stresses and failure crack angles for the full range of axial stresses—but also provided predictions of the complete load-deformation response of the elements. For the two highest compression-to-shear ratios, these load-deformation predictions were reasonable, whereas for the other axial load levels, they were excellent.
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AutoPIPE provides a comprehensive and advanced software tool specialized in pipe stress analysis. The intuitive modeling environment and the advanced analysis features provide for increased productivity and improved quality control.
Piping Codes
- ASME B31.1, B31.3, B31.4, B31.8
- ASME Sec. 3, Class II and III
- European Standard Metallic Industrial Piping EN13480
- B31.4 Offshore, B31.8 Offshore & CSA_Z662 Offshore codes
- Canadian CAN/CSA–Z662
- British Standard BS 806, BS 7159 (GRP piping code)
- Swedish Piping Code (SPC) Method 2
- Norwegian Det Norske Veritas (DNV) and TBK 5-6
- Dutch Stoomwezen D1101
- Japanese KHK, MITI class 3 and General Fire Protection code
- French RCC-M and SNCT
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IMPORTANT NOTICE: You may use this software for evaluation purposes only.
If you like it, it is strongly suggested you buy it to support the developers.
By any means you may not use this software to make money or use it for commercial purpose.
Title:Dynamic Characterisation of Base-Isolated Structures Using Analytical Shear-Beam Model
Authors:Vasant A. Matsagar,R. S. Jangid
Source: International Journal of Acoustics and Vibration, Vol. 11, No. 3, 2006
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Buckling Analysis of a Super-Large Storage Tank
Authors: Fan Bu, Cai Fu Qian, Xue Dong Chen, Tie Cheng Yang
Journal: Advanced Materials Research (Volume 487)
Pages: 237-241
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