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Critical Accumulated Strain Energy (Case) Failure Criterion for Thermal Cycling Fatigue of Solder Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the automotive and computer industries, a perennial challenge has been to design an adequate and efficient accelerated thermal cycling test which would correspond to field service conditions. ...
Thermal Cycling Induced Plastic Deformation in Solder Joints—Part I: Accumulated Deformation in Surface Mount Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When an electronic package is subjected to thermal cycling, the solder joint interconnects are subjected to a complex stress system. If the stress is sufficiently large, the solder joint will ...
Determination of Stress Intensity Factors for Interfacial Cracks in Bimaterial Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A relatively simple numerical method was developed to determine the stress intensity factors of interfacial cracks in bimaterial systems. The method is based on the evaluation of crack tip ...
Deformation in Multilayer Stacked Assemblies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A linear-elastic analytical model has been developed to describe the deformed geometry of a multi-layered stack assembly subject to thermal loading. The model is based on Timoshenko’s bimetal ...
Design of Repetitive-Control System With Input Dead Zone Based on Generalized Extended-State Observer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper concerns a repetitive-control system with an input-dead-zone (IDZ) nonlinearity. First, the expression for the IDZ is decomposed into a linear term and a disturbance-like one that depends on the parameters of ...
Experimental Analysis of Thermal Cycling Fatigue of Four-Layered FR4 Printed Wiring Boards
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Long-term reliability of electronic packaging has become a greater challenge as a result of ever increasing power requirements and the decreasing size of electronic packages. In this study, the ...
Effect of Localized Metal Matrix Composite Formation on Spot Friction Welding Joint Strength
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, metal particles were added during the spot friction welding (SFW) process, a solid state sheet metal joining process, to create a localized metal matrix composite (MMC) for the ...
Investigation of Fracture Performance and Interface Stress Behavior of Zn–Zn-Al Multilayer Coating–304 Stainless Steel Substrate System
Publisher: ASCE
Abstract: The maximum interface sheer stress and crack density can be used as criteria for the interfacial bonding property and fracture performance, respectively. In this paper, interface stress and crack density as a function of ...
Flexural Behavior of Steel-UHPC-NC Composite Girders with Different UHPC-NC Interface Treatments
Publisher: American Society of Civil Engineers
Abstract: The interface shear-resistant construction method between ultrahigh-performance concrete (UHPC) and normal concrete (NC) is critical to ensuring the overall collaborative work performance and structural safety of steel-UHPC-NC ...