Strain-rate-dependent constitutive equations for concrete
- Auburn Univ., AL (United States). Dept. of Civil Engineering
- Univ. of Florida, Shalimar, FL (United States). Graduate Research and Engineering Center
This paper summarizes the results of a comprehensive experimental study to quantify the effects of strain rate on concrete compressive and tensile strengths. Direct compression and splitting tensile tests were conducted at quasi-static rates (between 10{sup {minus}7}/s and 10{sup {minus}5}/s) in a standard MTS machine to establish the static properties. These same tests were conducted at high strain rates (between 10{sup {minus}1}/s and 10{sup 3}/s) on a split-Hopkinson pressure bar (SHPB) to determine the dynamic material properties. A statistical analysis was performed on the data and strain-rate-dependent constitutive equations, both for compression and tension, were developed. These constitutive equations were subsequently employed to modify an existing quasi-static, nonlinear concrete material model.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 302333
- Journal Information:
- Journal of Pressure Vessel Technology, Journal Name: Journal of Pressure Vessel Technology Journal Issue: 4 Vol. 120; ISSN 0094-9930; ISSN JPVTAS
- Country of Publication:
- United States
- Language:
- English
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