Results 1 to 10 of about 1,261 (155)
High Heat Resistance Can Be Deceiving: Dripping Behavior of Polyamide 4.6 in Fire
Macromolecular Materials and Engineering, 2023 Polyamide 4.6 (PA46) is a high‐heat‐resistant polymer, but it has no dripping resistance under fire. Three commercial grades of PA46 are investigated under UL 94 vertical fire test conditions.
Analice Turski Silva Diniz +2 more
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Melt-Flow Behaviours of Thermoplastic Materials under Fire Conditions: Recent Experimental Studies and Some Theoretical Approaches. [PDF]
Materials (Basel), 2015 Polymeric materials often exhibit complex combustion behaviours encompassing several stages and involving solid phase, gas phase and interphase. A wide range of qualitative, semi-quantitative and quantitative testing techniques are currently available ...
Joseph P, Tretsiakova-McNally S.
europepmc +3 more sources
Journal of Rock Mechanics and Geotechnical Engineering, 2022 The possibilities of the particle finite element method (PFEM) for modeling geotechnical problems are increasingly evident. PFEM is a numerical approach to solve large displacement and large strain continuum problems that are beyond the capabilities of ...
Josep Maria Carbonell +4 more
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Journal of Rock Mechanics and Geotechnical Engineering, 2023 In this paper, the application of Abaqus-based particle finite element method (PFEM) is extended from static to dynamic large deformation. The PFEM is based on periodic mesh regeneration with Delaunay triangulation to avoid mesh distortion.
Weihai Yuan +6 more
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Metals, 2023 A variety of particle-based methods have been developed for the purpose of computationally modelling processes that involve, for example, complex topological changes of interfaces, significant plastic deformation of materials, fluid flow in conjunction ...
Mingming Tong
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Simulation of the Marangoni Effect and Phase Change Using the Particle Finite Element Method
Applied Sciences, 2021 A simulation method is developed herein based on the particle finite element method (PFEM) to simulate processes with surface tension and phase change. These effects are important in the simulation of industrial applications, such as welding and additive
Billy-Joe Bobach +4 more
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Applied Sciences, 2021 Many polymer-made objects show a trend of melting and dripping in fire, a behavior that may be modified by adding flame retardants (FRs). These affect materials properties, e.g., heat absorption and viscosity.
Julio Marti +3 more
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Modeling Grinding Processes—Mesh or Mesh-Free Methods, 2D or 3D Approach?
Journal of Manufacturing and Materials Processing, 2022 The objectives of this study are mainly two: (1) to validate whether a single grain scratch process can be modeled in two dimensions under the assumption of plane strain, and (2) to select the best discretization approach to model a single grain scratch ...
Praveen Sridhar +2 more
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An Improved Particle Finite Element Method for the Simulation of Machining Processes [PDF]
, 2021 Machining is one of the most common and versatile manufacturing processes in industry, e.g. automotive industry and aerospace industry. But classical numerical methods such as the Finite Element Method (FEM) have difficulties to simulate it, because the ...
Müller, Ralf +2 more
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Computer Assisted Methods in Engineering and Science, 2017 A computational procedure for analysis of the melting, burning and flame spread of polymers under fire conditions is presented. The method, termed particle finite element method (PFEM), combines concepts from particle-based techniques with those of the ...
Eugenio Oñate +4 more
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