Results 51 to 60 of about 1,502,237 (170)

Damage Models for Soft Tissues: A Survey [PDF]

Journal of Medical and Biological Engineering, 2016
Damage to soft tissues in the human body has been investigated for applications in healthcare, sports, and biomedical engineering. This paper reviews and classifies damage models for soft tissues to summarize achievements, identify new directions, and facilitate finite element analysis.
openaire   +3 more sources

Compressive stress-strain behaviour of cement mortar-composites reinforced with short sisal fibre [PDF]

Materials Research, 2013
To design building elements using sisal fibre reinforced mortar composites, the stress-strain curves of the composites both under tensile and compression load is needed.
Paulo R. L. Lima, Romildo D. Toledo Filho, João A. Melo Filho   +2 more
doaj   +1 more source

Damage mechanical properties of sandstone under combined action of freeze-thaw and load

Meitan kexue jishu
Engineering rock mass in cold regions is subjected to the combined action of freeze-thaw and load for a long time, which causes deterioration in the mechanical properties of the rock mass.
Yongjun SONG, Jinghui CAO
doaj   +1 more source

Study on the influence of length-diameter ratio on the mechanical characteristics of cracks at the end of linear charges

矿业科学学报, 2019
Dynamic caustic experimental method and numerical simulation method were used to study the crack propagation rules and the tension/compression damage zone at the end of boreholes in the planar model.The results show that the effect of different length ...
Li Qing, Zhang Suixi, Wan Minghua, Guo Yang, Xu Wenlong, Feng Dandan   +5 more
doaj   +1 more source

Damage Models for Concrete [PDF]

, 2001
This constitutive relation is valid for standard concrete with a compression strength of 30–40 MPa. Its aim is to capture the response of the material subjected to loading paths in which extension of the material exists (uniaxial tension, uniaxial compression, bending of structural members) [4].
Pijaudier-Cabot, Gilles, Mazars, Jacky
openaire   +3 more sources

A Three-Dimensional Seismic Damage Assessment Method for RC Structures Based on Multi-Mode Damage Model

Buildings
To rationally evaluate the seismic damage of RC structures comprehensively and multi-dimensionally, a damage index calculation method is proposed.
Xiang Guo, Shuo Liu, Xiang Wang, Fujian Yang, Yantai Zhang   +4 more
doaj   +1 more source

Selective weed control using laser techniques

Julius-Kühn-Archiv, 2012
This contribution discusses technical and growth relevant aspects of using laser techniques for weed control. The research on thermal weed control via laser first focused on the interaction of laser beams and weed plants.
Marx, Christian, Pastrana-Perez, Julio, Hustedt, Michael, Barcikowski, Stephan, Haferkamp, Heinz, Rath, Thomas   +5 more
doaj   +1 more source

Determination of the numerical parameters of a continuous damage model for the structural analysis of clay brick masonry

Materials Research, 2012
Models based on the continuous damage theory present good responses in representing the nonlinear behavior of reinforced concrete structures with loss of strength and stiffness of the material. However, damage theory is rarely employed in the analysis of
Felipe Barbosa Mangueira, Luttgardes de Oliveira Neto, Maximiliano dos Anjos Azambuja   +2 more
doaj  

Freeze–Thaw Performance Degradation and Damage Model of Composite Concrete with Multi-Byproduct Synergy and Optimized Machine-Made/Tailings Sand

Buildings
An investigation was conducted to explore the freeze–thaw resistance of 60–90 MPa high-strength concrete blended with multiple industrial byproducts (limestone powder, fly ash, etc.) and mixed sand (machine-made/tailings sand), aiming to clarify freeze ...
Bin Lyu, Shuchun Zhou, Yuanzhou Wu, Zhikang Wu   +3 more
doaj   +1 more source

Experimental Study on Creep Characteristics and Damage Model of Carbonaceous Slate After Freeze-Thaw

Journal of Highway and Transportation Research and Development
Taking the carbonaceous slate of Zhuokeji tunnel on the Wenchuan-Ma, erkang expressway as the research subject, triaxial compression creep tests were conducted under various freeze-thaw cycles to analyze the creep strain characteristics and long-term ...
Guomin Liu, Mei Huang, Mingming Cao, Hua Chen   +3 more
doaj   +1 more source