Off-axial angle sensitivity of 3D orthogonal woven composite failure behavior subjected to in-plane compressive loading

2020 ◽  
Vol 157 ◽  
pp. 107149
Author(s):  
Zhenyu Wu ◽  
Shuo Li ◽  
Zhongxiang Pan ◽  
Xudong Hu
Keyword(s):  
Compressive Loading ◽  
Failure Behavior ◽  
Woven Composite ◽  
Composite Failure ◽  
Axial Angle ◽  
3D Orthogonal Woven

Ballistic penetration of conically cylindrical steel projectile into 3D orthogonal woven composite: a finite element study at microstructure level

2010 ◽  
Vol 45 (9) ◽  
pp. 965-987 ◽  
Author(s):  
Xiwen Jia ◽  
Baozhong Sun ◽  
Bohong Gu
Keyword(s):  
Finite Element ◽  
Impact Damage ◽  
Woven Composite ◽  
Strain Wave ◽  
Microstructure Model ◽  
Wave Distribution ◽  
Cylindrical Steel ◽  
3D Orthogonal Woven ◽  
The Impact ◽  
Ballistic Penetration

Ballistic penetration of conically cylindrical steel projectile into 3D orthogonal woven composite (3DOWC) was investigated from finite element analyses and ballistic impact tests. Based on the observation of the microstructure of the 3DOWC, a microstructure model was established for finite element calculation. In this model, the cross-section of warp, weft and Z-direction fiber tows was regarded as rectangular. The noninterwoven warp and weft yarns were bonded together with Z-yarns. The impact damage and energy absorption of the 3DOWC penetrated by a conically cylindrical steel projectile were calculated from the microstructure model and compared with the testing results. Good agreements with experiments have been observed, especially for deformation, damage evolution, and strain wave distribution in the 3DOWC under ballistic penetration.

scholarly journals X-ray μCT based assessment of thermal cycling induced cracks in non-crimp 3D orthogonal woven composite materials with porosity

2018 ◽  
Vol 406 ◽  
pp. 012008 ◽  
Author(s):  
M. Gigliotti ◽  
Y. Pannier ◽  
Y. Sinchuk ◽  
R. Antoranz-Gonzalez ◽  
M.C. Lafarie-Frenot ◽  
...  
Keyword(s):  
Composite Materials ◽  
Thermal Cycling ◽  
Woven Composite ◽  
X Ray ◽  
3D Orthogonal Woven

scholarly journals Failure behavior of woven fiberglass composites under combined compressive and environmental loading

2019 ◽  
Vol 54 (4) ◽  
pp. 519-533
Author(s):  
Ariana Paradiso ◽  
Isabella Mendoza ◽  
Amanda Bellafato ◽  
Leslie Lamberson
Keyword(s):  
High Speed ◽  
Shear Failure ◽  
Resin Composite ◽  
Compressive Loading ◽  
Image Correlation ◽  
Failure Behavior ◽  
High Speed Photography ◽  
Environmental Loading ◽  
Full Field ◽  
Environmental Conditioning

The purpose of this study is to quantitatively characterize the compressive and damage behavior of a woven fiberglass composite under combined environmental loading. Cuboidal samples of a commercially available woven fiberglass epoxy resin composite, garolite G10, are examined under uniaxial compressive loading perpendicular to the plies at quasi-static (10−3 s−1) and dynamic (103 s−1) strain rates using a standard load frame and Kolsky (split-Hopkinson) bar. In order to simulate environmental conditions, a subset of samples were soaked in either distilled or ASTM standard seawater prior to loading. Two time periods of environmental conditioning were investigated: short term at two weeks and long term at four months. Results demonstrate that, on average, the dynamic compressive strength of the fiberglass increased 35% from the quasi-static. Moreover, environmentally treated samples generally experienced a decrease strain to failure, and composites exposed to water for only short periods exhibited signs of the absorbed water sustaining additional load under quasi-static rates. Ultra-high-speed photography combined with digital image correlation, a full-field surface kinematic measurement technique, is used to map 2D strains on the sample during loading. In all cases, a clear shear failure mechanism from local instabilities appears, and a Mohr–Coulomb failure criterion is used to extract a mesoscale cohesive shear stress and coefficient of internal friction.

scholarly journals Experimental Study on Mechanical Properties, Failure Behavior and Energy Evolution of Different Coal-Rock Combined Specimens

2019 ◽  
Vol 9 (20) ◽  
pp. 4427 ◽  
Author(s):  
Shang Yang ◽  
Jun Wang ◽  
Jianguo Ning ◽  
Pengqi Qiu
Keyword(s):  
Kinetic Energy ◽  
Failure Modes ◽  
Rock Strength ◽  
Compressive Loading ◽  
Dissipated Energy ◽  
Failure Behavior ◽  
Peak Strain ◽  
Energy Evolution ◽  
Coal Rock ◽  
Axial Splitting

To investigate the effect of the pure coal/rock strength on the mechanical behavior, failure behavior, and energy evolution of coal-rock combined (CRC) specimens, an AG-X250 Shimadzu Precision Universal Test was used to conduct uniaxial compressive loading, uniaxial cyclic loading, and unloading compression experiments on pure coal, pure rock, and different CRC specimens. The results show that the uniaxial compressive strength, Young’s modulus, and peak strain of the CRC specimen mainly depend on the coal specimen instead of the rock strength. The major failure modes of CRC were the shearing fracture and axial splitting failure, and for the CRC specimen with the same hard rock, the CRC specimen severely failed due to axial splitting cracks. In addition, the released elastic energy Ue, dissipated energy Ud, and kinetic energy Ur increase with increasing rock mass/coal strength, and for CRC specimen with the same coal, the greater the difference in strength between the rock and coal is, the greater the kinetic energy is.

scholarly journals A Comprehensive Study on the Mechanical Properties of Different 3D Woven Carbon Fiber-Epoxy Composites

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2765
Author(s):  
Qiaole Hu ◽  
Hafeezullah Memon ◽  
Yiping Qiu ◽  
Wanshuang Liu ◽  
Yi Wei
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Woven Composites ◽  
Thickness Direction ◽  
Woven Composite ◽  
Fiber Volume ◽  
3D Woven Composites ◽  
Accurate Comparison ◽  
3D Orthogonal Woven ◽  
Carbon Fiber Epoxy

In this work, the tensile, compressive, and flexural properties of three types of 3D woven composites were studied in three directions. To make an accurate comparison, three 3D woven composites are made to have the same fiber volume content by controlling the weaving parameters of 3D fabric. The results show that the 3D orthogonal woven composite (3DOWC) has better overall mechanical properties than those of the 3D shallow straight-joint woven composite (3DSSWC) and 3D shallow bend-joint woven composite (3DSBWC) in the warp direction, including tension, compression, and flexural strength. Interestingly their mechanical properties in the weft direction are about the same. In the through-thickness direction, however, the tensile and flexural strength of 3DOWC is about the same as 3DSBW, both higher than that of 3DSSWC. The compressive strength, on the other hand, is mainly dependent on the number of weft yarns in the through-thickness direction.

Reliability-based design optimization of 3D orthogonal woven composite automobile shock tower

2021 ◽  
pp. 002199832110476
Author(s):  
Zhao Liu ◽  
Lei Zhang ◽  
Ping Zhu ◽  
Mushi Li
Keyword(s):  
Design Optimization ◽  
Composite Structures ◽  
Optimization Design ◽  
Optimization Procedure ◽  
Woven Composite ◽  
Reliability Based Design Optimization ◽  
Multi Scale ◽  
Reliability Based Design ◽  
Design Variables ◽  
3D Orthogonal Woven

Three-dimensional orthogonal woven composites are noted for their excellent mechanical properties and delamination resistance, so they are expected to have promising prospects in lightweight applications in the automobile industry. The multi-scale characteristics and inherent uncertainty of design variables pose great challenges to the optimization procedure for 3D orthogonal woven composite structures. This paper aims to propose a reliability-based design optimization method for guidance on the lightweight design of 3D orthogonal woven composite automobile shock tower, which includes design variables from material and structure. An analytical model was firstly set up to accurately predict the elastic and strength properties of composites. After that, a novel optimization procedure was established for the multi-scale reliability optimization design of composite shock tower, based on the combination of Monte Carlo reliability analysis method, Kriging surrogate model, and particle swarm optimization algorithm. According to the results, the optimized shock tower meets the requirements of structural performance and reliability, with a weight reduction of 37.83%.

Axial Crushes on Composite Laminated Square Tubes under Compressive Loading

2013 ◽  
Vol 594-595 ◽  
pp. 707-710
Author(s):  
A.A. Arifin ◽  
A. Othman
Keyword(s):  
Glass Fiber ◽  
Failure Modes ◽  
Polyester Resin ◽  
Peak Load ◽  
Compressive Loading ◽  
Laminated Composite ◽  
Failure Behavior ◽  
Absorbed Energy ◽  
Number Of Layers ◽  
Initial Peak

In this paper presents the effect of energy absorption on thin-walled aluminum cross-section square tubes wrapped with woven E-glass fiber laminated composite subjected to quasi-static axial compression. The compression test was carried out experimentally to examine the amount of energy can be absorbed as well as to observe for failure behavior for each specimens. The wall-thicknesses aluminum square of 1.9 mm was investigated and woven E-glass fiber laminate reinforced polyester resin was examined. Two different numbers of layers woven E-glass were investigated and examined. Result obtained from experimental analysis such that initial peak load, mean load, quasi-static absorbed energy against displacement curves were recoded and plotted then compared for each specimen profile. Results indicated that the tubes crashworthy structure was affected significantly by different number of layers wrapped on wall aluminum square profile and also that the effect of crushing behaviors and failure modes was discussed.

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