Acquisition of normal contact stiffness and its influence on rock crack propagation for the combined finite-discrete element method (FDEM)
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DOI: 10.1016/j.engfracmech.2020.107459
Abstract: Abstract The combined finite-discrete element method (FDEM) has been widely used in numerical studies in the fields of rock mechanics and geotechnical engineering. The normal contact stiffness between triangular elements is an important influencing parameter,… read more here.
Keywords: contact stiffness; normal contact; value; simulation ... See more keywords
Normal contact stiffness model for fractal surfaces considering scale dependence and friction behavior
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DOI: 10.1177/13506501221138995
Abstract: The normal contact stiffness on rough surfaces has a significant impact on the interfacial dynamic characteristics of mechanical joints. Based on the fractal geometry theory, this work improves the contact stiffness modeling by considering the… read more here.
Keywords: contact stiffness; contact; stiffness; friction ... See more keywords
Influence of Loading History and Soil Type on the Normal Contact Behavior of Natural Sand Grain-Elastomer Composite Interfaces
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DOI: 10.3390/polym13111830
Abstract: Recycled rubber in granulated form is a promising geosynthetic material to be used in geotechnical/geo-environmental engineering and infrastructure projects, and it is typically mixed with natural soils/aggregates. However, the complex interactions of grains between geological… read more here.
Keywords: sand; normal contact; contact behavior; grain ... See more keywords
Normal contact stiffness model considering 3D surface topography and actual contact status
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DOI: 10.5194/ms-12-41-2021
Abstract: Abstract. A normal contact stiffness model considering 3D topography and elastic–plastic contact of rough surfaces is presented in this paper. The asperities are generated from the measured surfaces using the watershed segmentation and a modified… read more here.
Keywords: contact; topography; model; contact stiffness ... See more keywords