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Showing 1 to 12 of 12 for “"thermo-mechanical analysis"”.
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Thermo-mechanical Analysis of a Custom PCB-DBC Hybrid Package for a (650 V, 150 A) e-GaN HEMT
… failure or reliability. With thermally generated mechanical fatigue a consistent cause of electronics failure, it must be investigated for the design to move beyond the prototyping phase. Thermo-mechanical fatigue failure is the brittle fracture of bonds caused by thermally induced warpage. The …
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Thermal and Thermo-Mechanical Analyses of Wire Bond vs. Three-dimensionally Packaged Power Electronics Modules
… been fully understood in terms of thermal and thermo-mechanical performance. Therefore, a comparative evaluation between the thermally induced response in conventional wire bonding (a 2-Dimensional technology) and 3-Dimensional packaging technologies is essential. Thermal and thermo-mechanical …
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Multiphysics Design and Modeling for Advanced Packaging and Heterogeneous Integration of Power Delivery
… electrical simulations and steady-state thermo-mechanical analysis, representing time-varying system elements in the frequency domain to improve stability and efficiency. To further accelerate computations, a parallelized version of the augmented method is implemented, leveraging modern …
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High Temperature SiC Embedded Chip Module (ECM) with Double-sided Metallization Structure
… to realize a lower stress distribution in a mechanically balanced structure with double-sided metallization layers and material CTE match in the structure. Thermal and thermo-mechanical analysis on an ECM is then used to demonstrate the benefits on the cooling system, and to study the …
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Nonlinear heat transfer and thermo mechanical stress analysis using finite elements.
… numerical procedures for the heat transfer and thermo-mechanical analysis of sol id continua. Steady state conduction heat transfer is developed as a particular case of the general field equation. Internal heat generation and the boundary conditions of specified temperatures, flux, convection. …
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Novel applications of pulse pre-pump Brillouin Optical Time Domain Analysis for behavior evaluation of structures under thermal and mechanical loading
… The pulse pre-pump Brillouin Optical Time Domain Analysis (PPP-BOTDA) was employed to measure strain and temperature distributions along a fused silica single-mode optical fiber. Strain distributions in concrete were measured from the distributed fiber optic sensors embedded in bonded and unbonded …
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Knowledge composition methodology for effective analysis problem formulation in simulation-based design
… a key challenge is to formulate and solve analysis problems efficiently to evaluate a large variety of design alternatives. The solution of analysis problems has benefited from advancements in commercial off-the-shelf math solvers and computational capabilities. However, the formulation of …
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Numerical modelling in large strain plasticity with application to tube collapse analysis
Numerical methods are proposed for the analysis of 2 or 3-dimensional large strain plasticity problems. A Finite Difference program, with 2-dimensional continuum elements and explicit time integration, has been developed and applied to model the axisymmetric crumpling of circular tubes. New types …
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Coupled Field Modeling of Gas Tungsten Arc Welding
… in the welded structure before stress analysis is performed. Existing research on weld pool dynamics simulation has ignored the effect of fluid flow in the weld pool on the temperature field of the welded joint. Previous research has established that the weld pool depth/width (D/W) …
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QUASI STATIC GRAVITY SIGNATURES IN SLOW TECTONIC ZONES: ASSIMILATION OF NOVEL AEROSPACE DATA AND GEOPHYSICAL MODELING
… in areas where the earthquakes enucleate. 2D thermo-mechanical numerical models are used to simulate the crust-mantle dynamics; in particular, complexities such as compositional stratification of crust-lithosphere system, mantle hydration, phase changes and degree of plate coupling are …
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Refined and advanced shell models for the analysis of advanced structures.
… technologies from materials development to analysis, design and testing of the structures. The main improvements in future aircraft and spacecraft could depend on an increasing use of conventional and unconventional multilayered structures. New unconventional materials could be used in the …
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A Finite Element Framework for the Thermal Analysis of Solids and Fluids
The lack of a unified continuum-mechanics approach for predicting the thermal displacements of solids and fluids demonstrates the need for a consistent and unified formulation for the continua that include both solids and fluids. In conventional finite-element formulations, volume changes of solids …