A5048581598- Cellular and Composite Structures
- High-Velocity Impact and Material Behavior
- Advanced Materials and Mechanics
- Structural Analysis and Optimization
- Additive Manufacturing and 3D Printing Technologies
- Bone Tissue Engineering Materials
- Structural Response to Dynamic Loads
- Supramolecular Self-Assembly in Materials
- Boron and Carbon Nanomaterials Research
- Micro and Nano Robotics
- Quasicrystal Structures and Properties
- Rock Mechanics and Modeling
- Composite Structure Analysis and Optimization
- Brake Systems and Friction Analysis
- Magnetic and transport properties of perovskites and related materials
- Elasticity and Wave Propagation
- Ultrasonics and Acoustic Wave Propagation
- Mineralogy and Gemology Studies
- Advanced ceramic materials synthesis
- Orthopaedic implants and arthroplasty
- Ferroelectric and Piezoelectric Materials
- Mechanical Engineering and Vibrations Research
- Titanium Alloys Microstructure and Properties
- Multiferroics and related materials
- Vibration and Dynamic Analysis
Yanshan University
2017-2024
State Key Laboratory of Metastable Materials Science and Technology
2024
Uppsala University
2022
In this paper, a new hybrid structure of body-centered cubic lattice-filled thin-walled tube is designed, and the specimens one-piece printing split-printing are prepared by laser melting technique. The deformation mode energy absorption characteristics investigated experiments numerical simulations. Under axial compression, printed forms more wrinkles with smaller wavelengths, specific increases 12.14% compared split-printed structure; under transverse does not show separation from lattice,...
Based on the advantages of thin-walled tubes and lattice structures in energy absorption improved crashworthiness, a hybrid structure lattice-reinforced with different cross-sectional cell numbers gradient densities was constructed, high crashworthiness absorber adjustable proposed. The experimental finite element characterization impact resistance uniform density arrangements to withstand axial compression carried out investigate interaction mechanism between packing metal shell, increased...
The nonlinear vibrations developing in sheets and strips during rolling are of practical technological importance theoretical interest. However, the existing numerical methods adopted research plagued by problems such as computational inefficiency, difficulty dealing with bifurcations, slow convergence frequency cancellations. This study develops an analytical method for solving problem rolled strip quasi‐periodic motions resonant state. First, conventional incremental harmonic balance is...
Lattice structures are characterized by a light weight, high strength, and stiffness, have wide range of applications in the aerospace field. Node stress concentration is key factor affecting mechanical performance lattice structures. In this paper, new equal-strength body-centered cubic (ES-BCC) structure was additively manufactured using 316L stainless steel via selective laser melting (SLM). The results compression test finite element analysis revealed that failure location ES-BCC changed...
The aim of topology optimisation is to determine the optimal distribution material phases within periodic cells a microstructure. In this paper, density grid points under element volume fraction constructed replace finite elements in traditional SIMP framework, avoiding jagged and blurry boundaries computational process due dependence. This then combined with homogenisation theory, microstructure algorithm maximum bulk modulus prescribed constraints proposed, which can obtain 2D 3D...
Creating lightweight and impact-resistant box structures has been an enduring pursuit among researchers. A new energy-absorbing structure consisting of a bionic gradient lattice-enhanced thin-walled tube is presented in this article. The lattice were prepared using selective laser melting (SLM) wire-cutting techniques, respectively. To analyze the effects pattern, mass ratio, diameter range impact speed on structural crashworthiness, low-speed at 4 m/s finite element simulation experiments...
This article proposes a kind of double concave double-arrow cell. The equivalent thermal expansion coefficient is obtained by using the geometric relation deformation. theoretical results agree well with finite element results. effect material matching and geometry size on discussed. Based proposed two-material cell, honeycomb structure constructed. coefficient, elastic modulus Poisson's ratio under load are numerically It found that increases increase material, up arrow has greater...
The crashworthiness of bionic thin-walled structures has been the subject considerable research interest. In this article, we emulate bi-diagonal skeletal structure deep-sea glass sponges and construct sponge-like multicellular tubes (SLMTT) with a parameterized ratio number two distinct single-celled organisms (CSS I CSS II). Thin-walled varying dimensions were manufactured using selective laser melting (SLM) technology. these was evaluated under axial compression, transverse three-point...
The elastic properties of random and ordered ZrO 2 nanotube- (ZrNT-) reinforced HA β -TCP biocomposites were carried out by a numerical investigation with finite element approach. modulus, shear Poisson’s ratio affected various ZrNT volume fractions (5.0 vol.%, 5.5 6.5 7.5 8.5 10.0 vol.%) aspect ratios (3, 5, 10 20) for both composites obtained analysed. advantages further discussed. composite is suggested to be proper candidate nanotube-reinforced biocomposite on the application bone repair...
Chiral cell structures have the potential to transform robot design field because of structures’ ability adopt various deformations under uniaxial load, such as twisting and a negative Poisson’s ratio. The rationale that underpins this is asymmetric deformation similar shearing; has vector characteristics. In paper, several cellular were designed deformed structure in many ways accordance with addition principle chiral cells (such compression–dislocation, compression–bending coupling...
In this study, the magnetic structure of CaCu3Fe2Re2O12 is analyzed combined on a macro to micro-scale. To combine first-principles calculations and finite element methods, properties, Young's modulus Poisson's ratio are used as input parameters in methods calculations. As function applied field actuator structure, energy loss magnetostrictive coefficient an identified. When voltage frequency specified, small bar radius narrow air gap preferred for high coefficient. The total range...