Many shape memory alloy (SMA) applications, such as biomedical devices, electromechanical actuators, and elastocaloric cooling are based on thin-walled flat or shell-like structures. An advanced design of structures requires the development an efficient accurate numerical tool for simulations very thin curved SMA that may experience large deformations even buckling upon thermo-mechanical loadin...

The paper presents a dynamic loading analysis of material carried out by the exploding wire method (EWM). A composite cylinder is chosen as an experimental sample. It thick-walled made polymethyl methacrylate with axial bore formed therein, pressed into aluminium shell. sample was loaded applying electric voltage to conductor in form copper placed inside An equation state for explosion obtained...

This study investigates the heat transfer performance of a novel ZA27 metal foam exchanger. An open-celled is combined with thin-walled copper tube in single-step casting process. The between two separated water streams flowing through and foam, respectively, measured compared to an equivalent shell exchanger arrangement. Heat enhancement up 71% rate exceeding 30 kW are observed attributed incr...

Abstract This work presents an accurate and efficient numerical tool for geometrically nonlinear thermoelastic analyses of thin‐walled structures. The structure is discretized by isogeometric solid‐shell model with approximation geometry kinematics avoiding the parameterization finite rotations. An modeling thermal strains, temperature‐dependent materials general temperature profiles based on a...

A thin-walled shell and a thick-walled mass (cylinder) in contact with it, made of different material, are structural elements many machines, apparatus, structures. The paper considers forced steady-state vibrations cylindrical structures filled layered viscoelastic material. study aims to determine the damping properties structurally inhomogeneous mechanical system under influence harmonic loa...

High engineering requirements of shock absorbers have increased interest in auxetic materials, which higher specific energy absorption performance compared to conventional solid absorbers. Last decade, many optimization studies were conducted improve the tubular structures. Most focused on adding inner and outer shells thin-walled with different types lattice structures enhance cylindrical sand...

Abstract. This work presents an accurate and efficient numerical tool for geometrically nonlinear thermoelastic analyses of thin-walled structures. The structure is discretized by isogeometric solid-shell model avoiding the parameterization finite rotations. An modeling thermal strains, temperature-dependent materials general temperature profiles proposed. Then, a generalized path-following met...

The applicability and limitations of simplified models thin elastic circular cylindrical shells for linear vibrations double-walled carbon nanotubes (DWCNTs) are considered. models, which based on the assumptions membrane moment approximate thin-shell theories, compared with extended Sanders–Koiter shell theory. Actual discrete DWCNTs modelled by means couples concentric equivalent continuous t...

Computational problems in structural engineering are growing ever larger and solutions must increasingly be based on correspondingly large datasets obtained from detailed parametric sweeps. However, the acquisition of computational useful size is also becoming unfeasible without extensive use automation. In shell buckling studies, particularly those thin-walled shells under complex loading cond...