Practical Design Criteria for Saturated Pseudo Strain Hardening Behavior in ECC

By T. Kanda, Victor C. Li. 2006

408 citations recorded by the source corpus.

Engineered Cementitious Composites (ECCs) have recently demonstrated their high performance with pseudo strain hardening (PSH) behavior in civil engineering structures and buildings. These materials incorporate low cost fibers such as Polyvinyl Alcohol fibers, which often rupture in composites. Such fiber rupture type ECCs tend to have inferior and unsaturated PSH behavior compared with those incorporating properly designed pull out type fiber. The present study focuses on presenting practical design criteria to achieve saturated PSH behavior in fiber rupture type ECCs. These criteria are proposed based on two performance indices, which are measures of energy exchange during steady state flat crack propagation and stress level to initiate micro-cracks. The latter performance index necessitates a new cracking strength prediction theory, which is proposed in the current study. Finally the cracking strength theory is justified using tensile test data, and the criteria are proposed based on the data in terms of these two indices.

Subfields: Building and Construction, Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/c6c05e29c8c732f185709dd3385a189685dc67cd

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Building and Construction

1. B. Nematollahi
2. J. Sanjayan
3. R. Yu
4. Faiz Shaikh
5. P. Spiesz
6. E. Yang
7. R. Ranade
8. Victor C. Li

In Civil and Structural Engineering

1. B. Nematollahi
2. J. Sanjayan
3. Faiz Shaikh
4. H. Brouwers
5. P. Spiesz
6. R. Yu
7. E. Yang
8. Victor C. Li

Citations in the corpus

• Ultra-high-ductile behavior of a polyethylene fiber-reinforced alkali-activated slag-based composite (2016, background): “Kanda and Li [31] proposed the performance indices s0=sfc (the stress performance index) and”
• An integrated design method of Engineered Geopolymer Composite (2018, methodology): “Dashed lines indicate recommended PSH values for practical design [48].”
• Influence of matrix flowability, fiber mixing procedure, and curing conditions on the mechanical performance of HTPP-ECC (2014, methodology): “As a result, pseudo strain-hardening (PSH) performance indices (defined as PSHenergy 1⁄4 Jb Jtip and PSHstrength 1⁄4 r0 rc) have been used to quantitatively evaluate the two margins [26,27].”
• Matrix design of strain hardening fiber reinforced engineered geopolymer composite (2016, methodology): “Thus, to quantitatively evaluate the margin, two PSH performance indices namely stress-performance index (s0/sfc) and energy-performance index (J0 b/Jtip) were proposed [11].”
• Strain hardening fiber reinforced alkali-activated mortar – A feasibility study (2012, background): “Kanda and Li [32] proposed performance indices r0/rfc (stress performance index) and Jb/Jtip (energy performance index) for the condition of saturated pseudo strain-hardening (PSH) behavior.”
• High ductile behavior of a polyethylene fiber-reinforced one-part geopolymer composite: A micromechanics-based investigation (2017, background): “energy index ( / ) were proposed by Kanda and Li [34] to be able to asses these margins”
• Comparative deflection hardening behavior of short fiber reinforced geopolymer composites (2014, background): “According to Kanda and Li [51], the higher the MOR/fLOP ratio, the greater the possibility of deflection hardening behavior which results in higher deflection capacity of the composite.”