Compressive behavior and failure modes of the wood-based double X-type lattice sandwich structure

2020 ◽  
Vol 30 ◽  
pp. 101176 ◽  
Author(s):  
Tengteng Zheng ◽  
Hongzhen Yan ◽  
Shuai Li ◽  
Yanpeng Cheng ◽  
Liuxiao Zou ◽  
...  
Keyword(s):  
Sandwich Structure ◽  
Failure Modes ◽  
Compressive Behavior ◽  
Type Lattice

scholarly journals Edgewise Compressive Behavior of Composite Structural Insulated Panels with Magnesium Oxide Board Facings

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3030
Author(s):  
Łukasz Smakosz ◽  
Ireneusz Kreja ◽  
Zbigniew Pozorski
Keyword(s):  
Magnesium Oxide ◽  
Sandwich Panel ◽  
Failure Modes ◽  
Small Scale ◽  
Fe Model ◽  
Compressive Behavior ◽  
Axial Loads ◽  
Reliable Prediction ◽  
Structural Insulated Panels ◽  
Prediction Capability

Edgewise compression response of a composite structural insulated panel (CSIP) with magnesium oxide board facings was investigated. The discussed CSIP is a novel multifunctional sandwich panel introduced to the housing industry as a part of the wall, floor, and roof assemblies. The study aims to propose a computational tool for reliable prediction of failure modes of CSIPs subjected to concentric and eccentric axial loads. An advanced numerical model was proposed that includes geometrical and material nonlinearity as well as incorporates the material bimodularity effect to achieve accurate and versatile failure mode prediction capability. Laboratory tests on small-scale CSIP samples of three different slenderness ratios and full-scale panels loaded with three different eccentricity values were carried out, and the test data were compared with numerical results for validation. The finite element (FE) model successfully captured CSIP’s inelastic response in uniaxial compression and when flexural action was introduced by eccentric loads or buckling and predicted all failure modes correctly. The comprehensive validation showed that the proposed approach could be considered a robust and versatile aid in CSIP design.

Experimental Research on Failure Mechanism of a CVI-Fabricated Ceramic Matrix Composite under Compression

2006 ◽  
Vol 326-328 ◽  
pp. 1841-1844 ◽  
Author(s):  
Guo Yang Guan ◽  
Gui Qiong Jiao ◽  
Tao Huang
Keyword(s):  
Failure Mechanism ◽  
Experimental Research ◽  
Fracture Mechanism ◽  
Failure Modes ◽  
Ceramic Matrix Composite ◽  
Ceramic Matrix ◽  
Mechanical Tests ◽  
Strength Prediction ◽  
Compressive Behavior ◽  
Linear Feature

Mechanical tests have been conducted to understand compressive behavior of a plain weave C/SiC composite, especially to investigate the failure mechanism. The stress-strain curves of this composite show linear feature in compression. The specimens fail along a flat plane 13°~15° to the weave plane, running across four typical regions in the bulk: weft bundle, warp/weft interface, warp bundle, and inter-ply. According to the observed fracture route, four basic failure modes are schematically presented. Cracks form and develop in these areas along fiber/matrix interphase or within matrix, depending on the strength competition between interphase and matrix. The fracture mechanism reveals dependence of compress strength on matrix abundance between and within bundles. Based on the failure modes new method for compress strength prediction can be further investigated.

Ultralight X-type lattice sandwich structure (I): Concept, fabrication and experimental characterization

2009 ◽  
Vol 52 (8) ◽  
pp. 2147-2154 ◽  
Author(s):  
QianCheng Zhang ◽  
YunJie Han ◽  
ChangQing Chen ◽  
TianJian Lu
Keyword(s):  
Sandwich Structure ◽  
Experimental Characterization ◽  
Type Lattice

Compression behaviour of the wood-based X-type lattice sandwich structure

2020 ◽  
Author(s):  
Liuxiao Zou ◽  
Tengteng Zheng ◽  
Shuai Li ◽  
Xin Zhao ◽  
Lifeng Wang ◽  
...  
Keyword(s):  
Sandwich Structure ◽  
Compression Behaviour ◽  
Type Lattice

Compressive effect of jute fiber corrugated lattice sandwich structure

2019 ◽  
Vol 39 (5-6) ◽  
pp. 209-218
Author(s):  
Shuguang Li ◽  
Runsheng Hu ◽  
Jin Cheng ◽  
Yingcheng Hu
Keyword(s):  
Sandwich Structure ◽  
Failure Modes ◽  
Shear Failure ◽  
Jute Fiber ◽  
Factors Affecting ◽  
Specific Strength ◽  
Out Of Plane ◽  
Theoretical Predictions ◽  
Shear Buckling ◽  
The Cost

A lattice sandwich structure mainly consisting of jute fiber and resin epoxy was prepared. Two configurations were established, and six out-of-plane compression experiments were conducted to identify the factors affecting the mechanical properties of the samples. The specific strength of the 2D corrugated lattice truss with the struts at 30° (I1) was 3 times stronger than that of the sample with sandwich struts at 45°. The specific strength of I1 was 3.9 times stronger than that of the Kagome structure prepared using Cu–2%Be. The cost performance with respect to the specific strength of the structure I1 was 161.7 times higher than that of the Kagome structure prepared using Cu–2%Be. Three failure modes were considered, and theoretical predictions were made separately. The failure modes in the experiment were mainly shear failure and shear buckling failure in sandwich struts.

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