Buckling and free vibration of laser-welded web-core sandwich panels: Extreme sensitivity to variation of weld rotational stiffness

S Yan, J Jelovica - Engineering Structures, 2021 - Elsevier
T-joints in laser-welded web-core sandwich panels connect face-plates with web-plates.
Rotational stiffness of the T-joints affects transverse shear stiffness of the panels. In this …

Numerical investigation of the response of I-core sandwich panels subjected to combined blast and fragment loading

C Zhang, Y Cheng, P Zhang, X Duan, J Liu, Y Li - Engineering Structures, 2017 - Elsevier
The LS-DYNA software was employed to investigate the dynamic response of I-core
sandwich panels under combined blast and fragment loading. The combined blast loading …

Ultimate strength assessment of stiffened panel under uni-axial compression with non-linear equivalent single layer approach

T Putranto, M Kõrgesaar, J Jelovica, K Tabri, H Naar - Marine Structures, 2021 - Elsevier
Steel stiffened panels are widely used in engineering design and construction. However,
numerical modeling and analysis effort for a three-dimensional (3D) stiffened panel may be …

Ultimate strength assessment of stiffened panels using Equivalent Single Layer approach under combined in-plane compression and shear

T Putranto, M Kõrgesaar, J Jelovica - Thin-Walled Structures, 2022 - Elsevier
Abstract Equivalent Single Layer (ESL) approach is extended to model ultimate strength of
stiffened panels under a combination of in-plane compression and shear. Ultimate strength …

[HTML][HTML] A homogenization method for geometric nonlinear analysis of sandwich structures with initial imperfections

BR Goncalves, J Jelovica, J Romanoff - International Journal of Solids and …, 2016 - Elsevier
A homogenization method for geometric nonlinear analysis of structural core sandwich
panels is proposed. The method provides high computational performance based on an …

Experimental and numerical research on the dynamic response of sandwich structure with M-type foldcore under low-velocity impact

Y Deng, Y Yin, X Hu, X Li - Mechanics of Advanced Materials and …, 2024 - Taylor & Francis
In the field of lightweight structures, foldcore sandwich structure is regarded as a promising
replacement for conventional honeycomb sandwich structure. In this study, a new M-type …

Buckling and post-buckling analysis of butterfly-shaped auxetic core sandwich plates based on variational asymptotic method

X Liu, Y Zhong, R Liu, J Shi - Thin-Walled Structures, 2023 - Elsevier
To further improve the buckling load, a novel type of butterfly-shaped auxetic core sandwich
plate (butterfly CSP) was proposed based on the re-entrant honeycomb. Based on the …

Eigenfrequency analyses of laser-welded web–core sandwich panels

J Jelovica, J Romanoff, R Klein - Thin-Walled Structures, 2016 - Elsevier
A web–core steel sandwich panel is a lightweight structure where thin plates are welded
together by laser-welding technique. The plates form a T-joint which has in the center a weld …

Ultimate strength behavior of laser-welded web-core sandwich plates under in-plane compression

Q Zhong, D Wang - Ocean Engineering, 2021 - Elsevier
This paper numerically investigates the ultimate strength behavior of the laser-welded web-
core sandwich plates under in-plane compression. Both geometric nonlinearity and material …

Buckling of sandwich panels with transversely flexible core: correction of the equivalent single-layer model using thick-faces effect

J Jelovica, J Romanoff - Journal of Sandwich Structures & …, 2020 - journals.sagepub.com
Modeling a periodic structure as a homogeneous continuum allows for an effective structural
analysis. This approach represents a sandwich panel as a two-dimensional plate of …