Haowei Yang
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Haowei Yang has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Bing Sun
Affiliations School of Civil Engineering, University of South China, Hengyang, China, China Nuclear Construction Key Laboratory of High Performance Concrete, University of South China, Hengyang, China
1 shared publication - Junwei Fan
School of Civil Engineering, University of South China, Hengyang, Hunan Province 421001, P.R. China, China
1 shared publication - Sheng Zeng
School of Resources Environment and Safety Engineering, University of South China, Hengyang, China
1 shared publication - Xiling Liu
School of Resources and Safety Engineering, Central South University, Changsha 410083, China
1 shared publication
Latest Publications
- Open Access
Energy Evolution and Damage Characteristics of Rock Materials under Different Cyclic Loading and Unloading Paths
In order to study the deformation and failure characteristics of rocks under different cyclic loading and unloading paths, three stress path tests were conducted, and acoustic emission (AE) monitoring was conducted simultaneously. The mechanical characteristics and AE characteristics under different stress paths were analyzed, and the influences of the different stress paths on the energy dissipation and deformation damage were investigated. The law of energy evolution considering viscoelasticity under different stress paths was obtained. The concept of ultimate damage energy and its calculation method was proposed. The results show that the “hardening effect” of sandstone and granite under the constant lower limit (CLLCL) is the most significant in maximizing the mechanical property. The CLLCL imparts a stronger elastic property to rocks than the variable lower limit (VLLCL) does, while the VLLCL causes more damage to rocks than the CLLCL. A significant linear relationship between the proportion of damage energy and the proportion of elastic energy was discovered. Based on this linear relationship, the ultimate damage energy can be calculated for sandstone and granite. The evolution of the damage variable based on damage energy was compatible with the real damage condition, which validates the ultimate damage energy calculation method. The research results lay a theoretical foundation for the design and construction of geotechnical engineering.
Open AccessEnergy Evolution and Damage Characteristics of Rock Materials under Different Cyclic Loading and Unloading Paths
In order to study the deformation and failure characteristics of rocks under different cyclic loading and unloading paths, three stress path tests were conducted, and acoustic emission (AE) monitoring was conducted simultaneously. The mechanical characteristics and AE characteristics under different stress paths were analyzed, and the influences of the different stress paths on the energy dissipation and deformation damage were investigated. The law of energy evolution considering viscoelasticity under different stress paths was obtained. The concept of ultimate damage energy and its calculation method was proposed. The results show that the “hardening effect” of sandstone and granite under the constant lower limit (CLLCL) is the most significant in maximizing the mechanical property. The CLLCL imparts a stronger elastic property to rocks than the variable lower limit (VLLCL) does, while the VLLCL causes more damage to rocks than the CLLCL. A significant linear relationship between the proportion of damage energy and the proportion of elastic energy was discovered. Based on this linear relationship, the ultimate damage energy can be calculated for sandstone and granite. The evolution of the damage variable based on damage energy was compatible with the real damage condition, which validates the ultimate damage energy calculation method. The research results lay a theoretical foundation for the design and construction of geotechnical engineering.