RETRACTED: Strain rate and interfacial property effects of random fibre cementitious composites

2009 ◽  
Vol 44 (6) ◽  
pp. 417-425 ◽  
Author(s):  
J H Yu ◽  
L Dai
Keyword(s):  
Strain Rate ◽  
Review Process ◽  
Peer Review Process ◽  
Strain Analysis ◽  
Interfacial Property ◽  
Cementitious Composites ◽  
University Of Michigan ◽  
Engineered Cementitious Composites ◽  
Structural Applications ◽  
Random Fibre

Yu, J. H. and Dai, L. Strain rate and interfacial property effects of random fibre cementitious composites. Journal of Strain Analysis for Engineering Design, 2009, 44: 417–425. DOI: 10.1234/03093247JSA513. This article has been retracted at the request of the Editor and the Publishers. Reason for Retraction: The results of a plagiarism investigation showed that the authors of this work (Yu, J. H., and Dai, L) are in breach of the agreement that they signed in their Licence to Publish Form for JSA513, having copied substantial portions of material from the following: Yang, E. H. Designing added functions in engineered cementitious composites. Ph.D. Dissertation, University of Michigan, 2008. Yang, E. H. and Li, V. C. Rate Dependencies in Engineered Cementitious Composites. Proceedings of International RILEM workshop on HPFRCC in structural applications, Honolulu, Hawaii. Published by RILEM SARL, pp. 83–92, 2005. Redon, C., V. C. Li, C. Wu, H. Hoshiro, T. Saito, and Ogawa, A. Measuring and Modifying Interface Properties of PVA Fibers in ECC Matrix. ASCE J. Materials in Civil Engineering, 13 (6): 399–406, 2001. We apologize that this was not detected during the peer review process in 2009.

Review of potential structural applications of hybrid fiber Engineered Cementitious Composites

2012 ◽  
Vol 36 ◽  
pp. 216-227 ◽  
Author(s):  
M. Maalej ◽  
S.T. Quek ◽  
S.F.U. Ahmed ◽  
J. Zhang ◽  
V.W.J. Lin ◽  
...  
Keyword(s):  
Cementitious Composites ◽  
Hybrid Fiber ◽  
Engineered Cementitious Composites ◽  
Structural Applications

Mechanical Behaviour of Engineered Cementitious Composites under Quasi-Static and High Strain Rate Applications

2015 ◽  
Vol 1129 ◽  
pp. 10-18
Author(s):  
Kang Hai Tan ◽  
En Hua Yang ◽  
S.B. Kang ◽  
T.Y. Wahyudi
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Experimental Studies ◽  
Cementitious Composites ◽  
Strain Rates ◽  
Structural Members ◽  
Engineered Cementitious Composites ◽  
Column Removal ◽  
Made In

This paper presents a series of experimental studies on the behaviour of engineered cementitious composites (ECC) under quasi-static and high strain rate loads. Potential enhancement of ECC to the resistance and ductility of structural members was evaluated under column removal scenarios and impact loading conditions. Besides, dynamic increase factors for compressive strength and critical strain were derived according to experimental results under high strain rates. Finally, conclusions and recommendations were made in accordance with the use of these materials for different structural performances.

scholarly journals Experimental Investigation on Dynamic Tensile Behaviors of Engineered Cementitious Composites Reinforced with Steel Grid and Fibers

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7042
Author(s):  
Liang Li ◽  
Hongwei Wang ◽  
Jun Wu ◽  
Shutao Li ◽  
Wenjie Wu
Keyword(s):  
Energy Dissipation ◽  
Strain Rate ◽  
Peak Stress ◽  
Cementitious Composites ◽  
Failure Behavior ◽  
Engineered Cementitious Composites ◽  
Volume Fractions ◽  
Kevlar Fiber ◽  
The Matrix ◽  
Pva Fiber

Engineered cementitious composites (ECC) used as runway pavement material may suffer different strain rate loads such as aircraft taxiing, earthquakes, crash impacts, or blasts. In this paper, the dynamic tensile behaviors of the steel grid-polyvinyl alcohol (PVA) fiber and KEVLAR fiber-reinforced ECC were investigated by dynamic tensile tests at medium strain rates. The mixture was designed with different volume fractions of fibers and layer numbers of steel grids to explore the reinforcement effectiveness on the dynamic performance of the ECC. The volume fractions of these two types of fibers were 0%, 0.5%, 1%, 1.5%, and 2% of the ECC matrix, respectively. The layer numbers of the steel grid were 0, 1, and 2. The dynamic tensile behaviors of the PVA fiber and the KEVLAR fiber-reinforced ECC were also compared. The experimental results indicate that under dynamic tensile loads, the PVA-ECC reveals a ductile and multi-cracking failure behavior, and the KEVLAR-ECC displays a brittle failure behavior. The addition of the PVA fiber and the KEVLAR fiber can improve the tensile peak stress of the ECC matrix. For the specimens A0.5, A1, A1.5, and A2.0, the peak stress increases by 84.3%, 149.4%, 209.6%, and 237.3%, respectively, compared to the matrix specimen. For the specimens K0.5, K1, K1.5, and K2, the peak stress increases by about 72.3%, 147.0%, 195.2%, and 263.9%, respectively, compared to the matrix specimen. The optimum fiber volume content is 1.5% for the PVA-ECC and the KEVLAR-ECC. The KEVLAR-ECC can supply a higher tensile strength than the PVA-ECC, but the PVA-ECC reveals more prominent deformation capacity and energy dissipation performance than the KEVLAR-ECC. Embedding steel grid can improve the tensile peak stress and the energy dissipation of the ECC matrix. For the strain rate of 10−3 s−1, the peak stress of the A0.5S1 and A0.5S2 specimens increases by about 49.1% and 105.7% compared to the A0.5 specimen, and the peak stress of the K0.5S1 and K0.5S2 specimens increases by about 61.5% and 95.8%, respectively, compared to the K0.5 specimen.

Sixth Edition: the New Standard

2008 ◽  
Vol 13 (1) ◽  
pp. 1-12
Author(s):  
Christopher R. Brigham ◽  
Robert D. Rondinelli ◽  
Elizabeth Genovese ◽  
Craig Uejo ◽  
Marjorie Eskay-Auerbach
Keyword(s):  
Review Process ◽  
Peer Review Process ◽  
World Health ◽  
International Classification Of Functioning ◽  
Revision Process ◽  
Sixth Edition ◽  
Impairment Ratings ◽  
Health Organization ◽  
Impairment Severity

Abstract The AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Sixth Edition, was published in December 2007 and is the result of efforts to enhance the relevance of impairment ratings, improve internal consistency, promote precision, and simplify the rating process. The revision process was designed to address shortcomings and issues in previous editions and featured an open, well-defined, and tiered peer review process. The principles underlying the AMA Guides have not changed, but the sixth edition uses a modified conceptual framework based on the International Classification of Functioning, Disability, and Health (ICF), a comprehensive model of disablement developed by the World Health Organization. The ICF classifies domains that describe body functions and structures, activities, and participation; because an individual's functioning and disability occur in a context, the ICF includes a list of environmental factors to consider. The ICF classification uses five impairment classes that, in the sixth edition, were developed into diagnosis-based grids for each organ system. The grids use commonly accepted consensus-based criteria to classify most diagnoses into five classes of impairment severity (normal to very severe). A figure presents the structure of a typical diagnosis-based grid, which includes ranges of impairment ratings and greater clarity about choosing a discreet numerical value that reflects the impairment.

Getting Involved in the Peer Review Process

2008 ◽  
Author(s):  
Kenya Malcolm ◽  
Allison Groenendyk ◽  
Mary Cwik ◽  
Alisa Beyer
Keyword(s):  
Peer Review ◽  
Review Process ◽  
Peer Review Process
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