期刊
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
卷 29, 期 4, 页码 -出版社
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)MT.1943-5533.0001781
关键词
Engineered cementitious composite (ECC); Split Hopkinson pressure bar (SHPB); Compression; Impact; Strain rate; Dynamic increase factor
资金
- National Key Basic Research Program of China [973-2012CB026200]
- Thousand-Talent National Expert Professorship - Nanjing Tech University
Engineered cementitious composite (ECC) is a cement-based material, commonly mixed with polyvinyl alcohol (PVA) fiber or polyethylene (PE) fiber as reinforcing materials. This paper reports the test results of ECC materials under high strain-rate compression, using a 100-mm diameter split Hopkinson pressure bar (SHPB) device. The stress-strain relationships under different strain rates are obtained and discussed. It is found that both the ultimate strength and the corresponding strain of ECC increase with the augmentation of strain rate, indicating that the compressive behavior of ECC is sensitive to the strain rate. The dynamic increase factors (DIFs) for strength and strain at strength are discussed. (C) 2016 American Society of Civil Engineers.
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