Active Member
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[China]
Address: 88 Century Dadao, Pudong New Area, Shanghai, China
Contact name:Zhang
DZ Iron Steel Group |
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Hrb335 Steel Rebar Sizes And Prices For Sale, Hot Rolled
| Hrb335 Steel Rebar strain rate effect of reinforcing steel bars is usually indispensable for modeling the dynamic responses of ferroconcrete structures in blast and impact events. a scientific experimental investigation was conducted on the strain rate behavior of reinforcing steel bar grades HPB235, HRB335, HRB400, and HRB500 which are widely utilized in the sector of engineering in China. The dynamic testing was performed employing a servo-hydraulic Instron VHS160/100-20 during a strain rate range from 2 to 75 s−1. Stress-strain curves at preset strain rates were obtained. The test data were then wont to derive the parameters during a model supported the dynamic increase factors (DIFs) of strengths and therefore the Johnson–Cook constitutive model. Results indicated that a big strain rate effect was observed for the four rebar grades. The dynamic yield strengths increased from 13% to 41% and their ultimate strengths improved from 9% to 19% within the strain rate range during testing. The strain rate behavior of the four rebar grades might be appropriately predicted using the parameters within the model supported the DIFs of strengths and therefore the Johnson–Cook model. |
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