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An Interfacial Tracking Method for Ultrashort Pulse Laser Melting and Resolidification of a Thin Metal Film
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An interfacial tracking method was developed to model rapid melting and resolidification of a freestanding metal film subject to an ultrashort laser pulse. The laser energy was deposited to the ...
Numerical Simulation of Random Packing of Spherical Particles for Powder-Based Additive Manufacturing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Powder-based additive manufacturing is an efficient and rapid manufacturing technique because it allows fabrication of complex parts that are often unobtainable by traditional manufacturing processes. ...
Dynamic Simulation of Particle Packing With Different Size Distributions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Distinct element method is employed to simulate packing of spherical particles with different size distributions: equal-size, bimodal, and Gaussian. During the packing process, particles collide ...
Size Effects During Femtosecond Laser Interaction With Nanosized Metal Particles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To obtain more in-depth knowledge about the microscopic process during laser sintering, phase change processes including melting, evaporation, and resolidification during the irradiation of femtosecond ...
A Dual-Phase-Lag Diffusion Model for Predicting Intermetallic Compound Layer Growth in Solder Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A dual-phase-lag diffusion (DPLD) model is presented for predicting the intermetallic compound (IMC) layer growth in solder joints. It extends from Fick’s law by taking into account the delayed ...
Inverse Heat Conduction in a Composite Slab With Pyrolysis Effect and Temperature-Dependent Thermophysical Properties
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The inverse heat conduction problem (IHCP) in a one-dimensional composite slab with rate-dependent pyrolysis chemical reaction and outgassing flow effects is investigated using the iterative ...
Three-Dimensional Inverse Heat Transfer in a Composite Target Subject to High-Energy Laser Irradiation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new numerical model is developed to simulate the 3D inverse heat transfer in a composite target with pyrolysis and outgassing effects. The gas flow channel size and gas addition velocity ...
A Nonequilibrium Thermal Model for Rapid Heating and Pyrolysis of Organic Composites
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A nonequilibrium thermal model is developed to predict the through-thickness transient temperature variation in organic composites subjected to intensive heating. In addition to heat conduction, ...
Modeling of Ultrafast Phase Change Processes in a Thin Metal Film Irradiated by Femtosecond Laser Pulse Trains
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ultrashort laser pulses can be generated in the form of a pulse train. In this paper, the ultrafast phase change processes of a 1 μm free-standing gold film irradiated by femtosecond laser ...
Thermomechanical Fracture on a Pressurized Cylindrical Vessel Induced by a Localized Energy Source
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thermally induced elastic fracture around a localized energy source on a pressurized cylindrical vessel is studied in this work. Analytical solutions are obtained via the method of dual integral ...
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