Article
Engineering, Aerospace
Yasutaka Satou, Hiroshi Furuya, Shoko Kaida, Tomoyuki Miyashita
Summary: This paper addresses the accurate prediction of the releasing and deploying behaviors of a creased space membrane. Experimental and finite element analysis results indicate that the opening angle of the crease increases with elapsed time after release due to stress relaxation. An analytical model is proposed to predict the releasing behavior, which shows good agreement with experimental results. Viscosity is considered important in predicting the releasing behavior of the space membrane.
Article
Mathematics
Ayman Abd-Elhamed
Summary: This research presents a closed form solution for laterally loaded long piles on cohesive soils, utilizing MATLAB for implementation. The analytical method provided reliable calculations for pile head deflection and bending moment, suitable for engineering design. Results were verified against an equivalent finite element model developed using ANSYS software, indicating the efficiency of the proposed analytical model in providing exact solutions for embedded piles in elasto-plastic cohesive soil under lateral loads.
Article
Engineering, Geological
Hui Liu, Dezhi Kong
Summary: Traditional earth pressure theories ignore the effects of intermediate principal stress and soil arching, leading to errors in the application of finite width soil. This study introduces the intermediate principal stress and soil arching effects, and proposes an improved calculation method for the lateral earth pressure of cohesive soil. The lateral earth pressure distribution of finite width soil is analyzed, and the results show that the active earth pressure is lower than traditional methods due to the influence of intermediate principal stress and soil arching.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2022)
Article
Engineering, Geological
Fan Yu, Peijun Guo, SeonHong Na
Summary: This study extends a one-dimensional elasto-plastic model to solve multi-dimensional problems and provides a comprehensive constitutive model for both frozen and unfrozen soils through two-step extension and integration of descriptions for soils at unfrozen and frozen states.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2022)
Article
Chemistry, Multidisciplinary
Hui Liu, Dezhi Kong, Wensong Gan, Bingjie Wang
Summary: This study proposes a method to calculate seismic earth pressure by assuming a logarithmic spiral slip surface. The analytical solutions for lateral earth pressure coefficient and active earth pressure are derived, considering soil arching effects and tension cracks. The research discusses the mechanism and distribution of seismic active earth pressure under limited width conditions.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Environmental
Kun Huang, Qinyong Ma, Guojun Cai, Dongdong Ma, Zhaoming Yao, Hongpeng Zhang
Summary: This study aims to investigate the strength and deformation characteristics of frozen soil with different moisture contents under true triaxial stress state conditions. The experimental results show that the stress-strain curves demonstrate strain-hardening characteristics under different test conditions. The intermediate principal stress ratio has a dual effect of strengthening and weakening on the strength of frozen soil.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2023)
Article
Computer Science, Interdisciplinary Applications
Erin Kuci, Miche Jansen
Summary: This paper presents a level set-based framework for structural topology optimization with local elasto-plastic stress constraints. The proposed method takes advantage of an elasto-plastic material model to achieve more efficient structures under extreme loading scenarios. It uses the Augmented Lagrangian approach to reduce computational effort and combines the level set and density-based geometrical descriptions to allow for automated hole seeding.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2022)
Article
Thermodynamics
Samir Danouni, Shayfull Zamree Abd Rahim, Abdellah Abdellah El-hadj, Mohd Nasir Mat Saad
Summary: This study presents the development of a thermo-mechanical simulation model for an elastic-plastic contact problem. The results showed significant effects of thermal consideration in the elastic-plastic contact problem.
Article
Engineering, Multidisciplinary
Cunyi Li, Jianguang Fang, Chi Wu, Guangyong Sun, Grant Steven, Qing Li
Summary: In this study, a new phase field approach is proposed to analyze the fracture behavior of ductile materials by considering the effects of stress triaxiality and Lode angle, and incorporating phenomenological ductile fracture criteria. The effectiveness of the proposed models is demonstrated through numerical implementation and derivation of analytical homogeneous solutions, and their applicability is further validated through a wide range of stress state examples.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Engineering, Mechanical
Renliang Shan, Zhaolong Li, Chunhe Wang, Yonghui Wei, Yao Bai, Yan Zhao, Xiao Tong
Summary: By analyzing the asymmetrical deformation mechanism and stability control technology of the rock surrounding the near-fault roadway (NFR), it was found that the size and distribution of the deviatoric stress and plastic zone are determined by the ratio K of the maximum principal stress to minimum principal stress and the deflection angle alpha of maximum principal stress. Comparison with field measurements revealed the asymmetric deformation mechanism of NFR under the influence of mining activities.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Multidisciplinary Sciences
Navneet Singh, Zhen Zhang, A. K. Sood, Walter Kob, Rajesh Ganapathy
Summary: The conventional wisdom about liquids is that they are completely disordered, but recent observations have shown that liquids have a surprisingly rich microstructure. This microstructure plays a critical role in various physical, biological, and industrial processes. By using advanced imaging techniques and a four-point correlation function, researchers have discovered that bidisperse colloidal liquids have a highly nontrivial structure comprising alternating layers with icosahedral and dodecahedral order. This intermediate-range order is strongly correlated with dynamical heterogeneities and relaxation dynamics in glassy liquids.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Engineering, Geological
Ben-Guo He, Xiang-Rui Meng, Xia-Ting Feng, Sa Li, Yonghong Li
Summary: The failure modes of deep excavation are related to three-dimensional stresses. The effect of the intermediate principal stress (a2) on the failure of granite surrounding an underground powerhouse was examined. The stress a2 after excavation can help improve the failure brittleness and strength of the rock.
ENGINEERING GEOLOGY
(2022)
Article
Geochemistry & Geophysics
Uchitha N. Arachchige, Alexander R. Cruden, Roberto Weinberg
Summary: The study demonstrates that Laponite RD (LRD) gels undergo a transition from brittle, elastic-dominant linear viscoelastic material to plastic material under increased shear strain. LRD can be used to model both elastic deformation and plastic deformation, making it an ideal material for studying the behavior of rocks during magma emplacement and brittle fracture propagation in the upper crust.
Article
Mechanics
Harini Subramanian, Shantanu S. Mulay
Summary: A novel three-dimensional elasto-plastic damage-healing model based on continuum damage mechanics is proposed, with a secondary damage variable and an implicit formulation based on irreversible thermodynamics. The model successfully demonstrates the applicability of the newly introduced framework, providing a physically realistic stress-strain response of self-healing materials.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Mining & Mineral Processing
Zhongwei Wang, Quansheng Liu
Summary: The study proposed a strength criterion for soft rocks, which includes two independent parameters: uniaxial compressive strength and f(joint) for characterizing rock mass quality. Comparisons showed that the new criterion generally produced a better fit for estimating triaxial and true-triaxial strengths, even without triaxial data.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Hao Wu, Jian Wang, Jianhua Wang, Chencong Liao
INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS
(2018)
Article
Engineering, Ocean
Dagui Tong, Chencong Liao, Deng-Sheng Jeng, Jianhua Wang
APPLIED OCEAN RESEARCH
(2018)
Article
Engineering, Ocean
Ya-Guang Wang, C. C. Liao, J. H. Wang
APPLIED OCEAN RESEARCH
(2018)
Article
Engineering, Ocean
H. -Y Zhao, D. -S. Jeng, C. -C. Liao, J. -S. Zhang, Z. Guo, W. -Y. Chen
APPLIED OCEAN RESEARCH
(2018)
Article
Engineering, Marine
Y. -G. Wang, C. C. Liao, J. -H. Wang, W. Wang
Article
Engineering, Marine
Chencong Liao, Dagui Tong, Dong-Sheng Jeng, Hongyi Zhao
Article
Engineering, Marine
Yizhou Zhang, Chencong Liao, Jinjian Chen, Dagui Tong, Jianhua Wang
Article
Engineering, Marine
Jian Leng, Chencong Liao, Guanlin Ye, D. -S. Jeng
Article
Engineering, Marine
Y. -G. Wang, C. C. Liao, J. -H. Wang, D. -S. Jeng
Article
Engineering, Ocean
Wei-Yun Chen, Guo-Xing Chen, Wei Chen, Chen-Cong Liao, Hong-Mei Gao
MARINE GEORESOURCES & GEOTECHNOLOGY
(2019)
Article
Engineering, Ocean
C. C. Liao, Yaguang Wang, Jinjian Chen, Qi Zhang
MARINE GEORESOURCES & GEOTECHNOLOGY
(2019)
Editorial Material
Engineering, Ocean
C. C. Liao
MARINE GEORESOURCES & GEOTECHNOLOGY
(2019)
Article
Computer Science, Interdisciplinary Applications
Dagui Tong, Chencong Liao, Jinjian Chen
COMPUTERS AND GEOTECHNICS
(2019)
Article
Engineering, Environmental
Jian Leng, Guanlin Ye, Chencong Liao, Dongsheng Jeng
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2018)
Article
Engineering, Ocean
Canjun Yang, Dingze Wu, Puzhe Zhou, Shuyang Ma, Rui Zhou, Xin Zhang, Yang Zhang, Qingchao Xia, Zeliang Wu
Summary: The Argo Global Ocean Observing Network is the preeminent ocean observation network worldwide, but its buoys fail to complete long-term observations in designated sea areas due to their lack of lateral movement. To solve this problem, a portable underwater profiler (PUP) that combines buoy and underwater glider functionalities was developed. The PUP is lightweight, allows for rapid deployment, and enables continuous observation.
APPLIED OCEAN RESEARCH
(2024)
Article
Engineering, Ocean
Knut Andreas Kvale, Bernt Leira, Ole Oiseth
Summary: As future floating bridges become longer, the chance of encountering significant inhomogeneous wave conditions increases. This paper presents an approach to model these conditions using generalized harmonic decomposition and applies it to a conceptual floating bridge model in Norway. The paper focuses on frequency-domain simulation and highlights the importance of considering the coherency in swell sea conditions.
APPLIED OCEAN RESEARCH
(2024)