scholarly journals Experimental investigation on static and dynamic energy dissipation characteristics of composite sandwich structure with entangled metallic wire materials and disc springs

2021 ◽  
Author(s):  
Yiwan Wu ◽  
Hu Cheng ◽  
Hongbai Bai ◽  
Shangzhou Li ◽  
Yu Tang
Keyword(s):  
Experimental Investigation ◽  
Energy Dissipation ◽  
Sandwich Structure ◽  
Metallic Wire ◽  
Composite Sandwich

scholarly journals The energy absorption behavior of novel composite sandwich structures reinforced with trapezoidal latticed webs

2021 ◽  
Vol 60 (1) ◽  
pp. 503-518
Author(s):  
Juan Han ◽  
Lu Zhu ◽  
Hai Fang ◽  
Jian Wang ◽  
Peng Wu
Keyword(s):  
Bearing Capacity ◽  
Energy Absorption ◽  
Sandwich Structure ◽  
Ultimate Load ◽  
Sandwich Structures ◽  
Elastic Displacement ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Composite Sandwich ◽  
Composite Sandwich Structures

Abstract This article proposed an innovative composite sandwich structure reinforced with trapezoidal latticed webs with angles of 45°, 60° and 75°. Four specimens were conducted according to quasi-static compression methods to investigate the compressive behavior of the novel composite structures. The experimental results indicated that the specimen with 45° trapezoidal latticed webs showed the most excellent energy absorption ability, which was about 2.5 times of the structures with vertical latticed webs. Compared to the traditional composite sandwich structure, the elastic displacement and ultimate load-bearing capacity of the specimen with 45° trapezoidal latticed webs were increased by 624.1 and 439.8%, respectively. Numerical analysis of the composite sandwich structures was carried out by using a nonlinear explicit finite element (FE) software ANSYS/LS-DYNA. The influence of the thickness of face sheets, lattice webs and foam density on the elastic ultimate load-bearing capacity, the elastic displacement and initial stiffness was analyzed. This innovative composite bumper device for bridge pier protection against ship collision was simulated to verify its performance. The results showed that the peak impact force of the composite anti-collision device with 45° trapezoidal latticed webs would be reduced by 17.3%, and the time duration will be prolonged by about 31.1%.

scholarly journals The Design and Calculation of the Exoskeleton Backplate Based on the Composite Sandwich Structure

2020 ◽  
Vol 571 ◽  
pp. 012118
Author(s):  
Xuefeng Peng ◽  
Zongmiao Dai ◽  
Jiasheng Liu ◽  
Qingyuan Wang
Keyword(s):  
Sandwich Structure ◽  
Composite Sandwich

Experimental investigation of the mechanical characteristics and energy dissipation of gas-containing coal under incremental tiered cyclic loading

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
Changbao Jiang ◽  
Zhengke Li ◽  
Wensong Wang ◽  
Zhijie Wen ◽  
Minke Duan ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Energy Dissipation ◽  
Cyclic Loading ◽  
Mechanical Characteristics

Experimental investigation of a single-yielding precast concrete beam–column connection with replaceable energy-dissipation connector

2021 ◽  
Vol 150 ◽  
pp. 106906
Author(s):  
Chao Tong ◽  
Jing Wu ◽  
Chunyu Li ◽  
Jianping Han ◽  
Zhiqiang Li
Keyword(s):  
Experimental Investigation ◽  
Energy Dissipation ◽  
Concrete Beam ◽  
Precast Concrete

scholarly journals Research on the Response Characteristics of Bio-Inspired Composite Sandwich Structure under Low Velocity Impact

2021 ◽  
Vol 2101 (1) ◽  
pp. 012087
Author(s):  
Peng Hao ◽  
Lin’an Li ◽  
Jianxun Du
Keyword(s):  
Sandwich Structure ◽  
Mechanical Response ◽  
Shear Fracture ◽  
Impact Load ◽  
High Energy ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Response Characteristics ◽  
Composite Sandwich ◽  
The Impact

Abstract In order to research the impact mechanical response characteristics of the bio-inspired composite sandwich structure, the hemispherical impactor is preloaded with different energy to impact bio-inspired and conventional composite sandwich structure, the stress distribution and dynamic response characteristics of composite sandwich structure under impact load are studied. The results show that the main damage of the upper panel is fiber shear fracture, while crushing fracture for the core, and the main damage of the lower panel is fiber tensile tearing under different impact load. The bio-inspired composite sandwich structure shows better impact resistance in terms of damage depth and maximum impact load under the same impact energy. From the perspective of energy consumption, the bio-inspired structure absorbed more energy than conventional structure under high energy impact.

scholarly journals Delamination Analysis of Composite Sandwich Plate of Cork Agglomerate/Glass Fiber-Polyester: An Experimental Investigation

2021 ◽  
Vol 31 (4) ◽  
pp. 193-197
Author(s):  
Hocine Djemai ◽  
Adnane Labed ◽  
Mabrouk Hecini ◽  
Tarek Djoudi
Keyword(s):  
Experimental Investigation ◽  
Glass Fiber ◽  
Sandwich Plate ◽  
Composite Sandwich

New parameter for characterizing and correlating impact-sliding fretting wear to energy dissipation—experimental investigation

Wear ◽  
2007 ◽  
Vol 263 (1-6) ◽  
pp. 419-429 ◽  
Author(s):  
Helmi Attia ◽  
Y.B. Gessesse ◽  
M.O.M. Osman
Keyword(s):  
Experimental Investigation ◽  
Energy Dissipation ◽  
Fretting Wear
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