Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 04018081 |
| Fachzeitschrift | Journal of Materials in Civil Engineering |
| Jahrgang | 30 |
| Ausgabenummer | 6 |
| Frühes Online-Datum | 20 März 2018 |
| Publikationsstatus | Veröffentlicht - Juni 2018 |
Abstract
This study presents the residual capacity and post-event damage assessment of unconfined and glass-fiber reinforced polymer (GFRP)-wrapped confined concrete cylinders subjected to low-cycle fatigue loading. First characterized were monotonic compressive behaviors, including post-peak, strain-softening, and strain-hardening responses. Fatigue tests were then carried out at three stress levels to determine the number of cycles to failure, material degradation regarding the development of total and plastic strain, the deterioration of elastic modulus, and also the change in the temperature of test specimens. To assess the residual capacity of damaged concrete, the specimens were subjected to 0.3, 0.5, 0.7, and 0.9 of the fatigue life, and then monotonically reloaded to failure. After comparing the stress-strain curves of damaged and intact concrete, the remaining compressive strength and strain capacities were determined. Subsequently, permeability tests were conducted on concrete disks taken from damaged specimens, allowing the degradation process to be indirectly quantified using damage occurring in the concrete microstructure.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Tief- und Ingenieurbau
- Ingenieurwesen (insg.)
- Bauwesen
- Werkstoffwissenschaften (insg.)
- Ingenieurwesen (insg.)
- Werkstoffmechanik
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in: Journal of Materials in Civil Engineering, Jahrgang 30, Nr. 6, 04018081, 06.2018.
Publikation: Beitrag in Fachzeitschrift › Artikel › Transfer › Peer-Review
}
TY - JOUR
T1 - Residual capacity and permeability-based damage assessment of concrete under low-cycle fatigue
AU - Malek, A.
AU - Scott, A.
AU - Pampanin, S.
AU - MacRae, G.
AU - Marx, Steffen
N1 - Publisher Copyright: © 2018 American Society of Civil Engineers.
PY - 2018/6
Y1 - 2018/6
N2 - This study presents the residual capacity and post-event damage assessment of unconfined and glass-fiber reinforced polymer (GFRP)-wrapped confined concrete cylinders subjected to low-cycle fatigue loading. First characterized were monotonic compressive behaviors, including post-peak, strain-softening, and strain-hardening responses. Fatigue tests were then carried out at three stress levels to determine the number of cycles to failure, material degradation regarding the development of total and plastic strain, the deterioration of elastic modulus, and also the change in the temperature of test specimens. To assess the residual capacity of damaged concrete, the specimens were subjected to 0.3, 0.5, 0.7, and 0.9 of the fatigue life, and then monotonically reloaded to failure. After comparing the stress-strain curves of damaged and intact concrete, the remaining compressive strength and strain capacities were determined. Subsequently, permeability tests were conducted on concrete disks taken from damaged specimens, allowing the degradation process to be indirectly quantified using damage occurring in the concrete microstructure.
AB - This study presents the residual capacity and post-event damage assessment of unconfined and glass-fiber reinforced polymer (GFRP)-wrapped confined concrete cylinders subjected to low-cycle fatigue loading. First characterized were monotonic compressive behaviors, including post-peak, strain-softening, and strain-hardening responses. Fatigue tests were then carried out at three stress levels to determine the number of cycles to failure, material degradation regarding the development of total and plastic strain, the deterioration of elastic modulus, and also the change in the temperature of test specimens. To assess the residual capacity of damaged concrete, the specimens were subjected to 0.3, 0.5, 0.7, and 0.9 of the fatigue life, and then monotonically reloaded to failure. After comparing the stress-strain curves of damaged and intact concrete, the remaining compressive strength and strain capacities were determined. Subsequently, permeability tests were conducted on concrete disks taken from damaged specimens, allowing the degradation process to be indirectly quantified using damage occurring in the concrete microstructure.
KW - Confinement
KW - Damage assessment
KW - Low-cycle fatigue
KW - Permeability
KW - Residual capacity
UR - http://www.scopus.com/inward/record.url?scp=85044293106&partnerID=8YFLogxK
U2 - 10.1061/(asce)mt.1943-5533.0002248
DO - 10.1061/(asce)mt.1943-5533.0002248
M3 - Article
VL - 30
JO - Journal of Materials in Civil Engineering
JF - Journal of Materials in Civil Engineering
SN - 0899-1561
IS - 6
M1 - 04018081
ER -