Residual Thermal Strain Distribution Measurement of Underfills in Flip Chip Electronic Packages by an Inverse Approach Based on the Sampling Moiré Method
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DOI: 10.1007/s11340-019-00571-7
Abstract: Residual deformation evaluation of underfill (UF) materials in flip chips is crucial to improve the reliability of electronic packages. In this study, we propose to evaluate the residual thermal strain distributions using an inverse method… read more here.
Keywords: temperature; strain distributions; method; residual thermal ... See more keywords
Numerical investigation of residual thermal stresses in welded joints of heterogeneous steels with account of technological features of multi-pass welding
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DOI: 10.1016/j.apm.2016.10.005
Abstract: Abstract The paper describes a two-dimensional mathematical model to evaluate stresses in welded joints formed in multi-pass welding of multi-layered steels. The model is based on a system of equations that includes the Lagrange's variational… read more here.
Keywords: pass welding; residual thermal; welded joints; thermal stresses ... See more keywords
Determination of mechanical properties of FFF 3D printed material by assessing void volume fraction, cooling rate and residual thermal stresses
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DOI: 10.1108/rpj-08-2018-0192
Abstract: Purpose This paper aims to present experimental and numerical analyses of fused filament fabrication (FFF) printed parts and show how mechanical characteristics of printed ABS-MG94 (acrylonitrile butadiene styrene) are influenced by the void volume fraction,… read more here.
Keywords: thermal stresses; volume fraction; residual thermal; void volume ... See more keywords
Control of stress relaxation and residual thermal stress during cure of random fibre mat-reinforced polyester composites
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DOI: 10.1177/0021998316684655
Abstract: The study deals with the control of stress relaxation and residual thermal stress during cure of random fibre mat-reinforced thermoset composite through a practicable optimal temperature scheme to manufacture timely and quality composite laminates with… read more here.
Keywords: thermal stress; stress relaxation; relaxation residual; residual thermal ... See more keywords