Investigation on in-plane shear behavior of large-size composite plates with multi-bolt joints

2020 ◽  
Vol 232 ◽  
pp. 111553 ◽  
Author(s):  
Fa Zhang ◽  
Zhendong Hu ◽  
Limin Gao ◽  
Yumin Wan ◽  
Limin Jin ◽  
...  
Keyword(s):  
Composite Plates ◽  
Shear Behavior ◽  
Plane Shear ◽  
Large Size

Study on the Stress Concentration in GFRP Composite Plates with Multiple Cut-Outs Subjected to Shear Loading

2018 ◽  
Vol 877 ◽  
pp. 446-452
Author(s):  
R.S. Aleena ◽  
R.S. Priyadarsini
Keyword(s):  
Stress Concentration ◽  
Composite Structures ◽  
Composite Plates ◽  
Shear Loading ◽  
Space Vehicles ◽  
Plane Shear ◽  
Civil Infrastructures ◽  
Glass Fibre Reinforced Polymer ◽  
Glass Fibre Reinforced ◽  
Engineering Practices

The composite materials are widely used nowadays as major parts of structures in many industries like aerospace, marine, automobile, space vehicles and also for the repair and replacement of civil infrastructures. Stresses are vital parameters considered in the design of structures. Any irregularities in shape, materials, or the presence of cut-outs create localized stress concentration and reduce the capacity of the material to take loads. The anisotropic behaviour of composite structures also makes the analysis more complex. Shear loading often exists in the engineering practices such as in aerospace due to heavy aerodynamic loads. So in the present study the effects of different parameters like layup sequences, number of plies, proximity of cut-outs, shapes and arrangements of cut-outs under in-plane shear loading on the glass fibre reinforced polymer (GFRP) plate with multiple cut-outs are studied using ABAQUS. The results from the study show that all the parameters considered for the study affects the stress concentration considerably. The observations are analysed then and the final conclusions are presented.

scholarly journals Mechanical Respond and Failure Mode of Large Size Honeycomb Sandwiched Composites under In-Plane Shear Load

Molecules ◽  
2019 ◽  
Vol 24 (23) ◽  
pp. 4248 ◽  
Author(s):  
Wang ◽  
Wang ◽  
Liu ◽  
Zhang ◽  
Wan ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Shear Strain ◽  
Failure Mode ◽  
Field Distribution ◽  
Shear Failure ◽  
Buckling Load ◽  
Analysis Method ◽  
Plane Shear ◽  
Large Size ◽  
Honeycomb Sandwich

The present work focuses on the in-plane shear respond and failure mode of large size honeycomb sandwich composites which consist of plain weave carbon fabric laminate skins and aramid paper core. A special size specimen based on a typical element of aircraft fuselage was designed and manufactured. A modified in-plane shear test method and the corresponding fixture was developed. Three large size specimens were tested. The distributed strain gauges were used to monitor the mechanical response and ultimate bearing capacity. The results show that a linear respond of displacement and strain appears with the increase of the load. The average shear failure load reaches 205.68 kN with the shear failure occurring on the face sheet, and the maximum shear strain monitored on the composite plate is up to 16,115 με. A combination of theoretical analysis and finite element method (FEM) was conducted to predict the shear field distribution and the overall buckling load. The out-of-plane displacement field distribution and in-plane shear strain field distribution under the pure shear loading were revealed. The theoretical analysis method was deduced to obtain the variation rule of the shear buckling load. A good agreement was achieved among the experiment, theoretical analysis, and FEM results. It can be concluded that the theoretical analysis method is relatively conservative, and the FEM is more accurate in case of deformation and strain. The results predicted by h element and p element methods are very close. The results of the study could provide data support for the comprehensive promotion of the design and application of honeycomb sandwich composites.

Shear Performance of FRP-Retrofitted Masonry Wall with Structural Columns

2015 ◽  
Vol 744-746 ◽  
pp. 288-291
Author(s):  
Zhen Lei ◽  
Yong Wang ◽  
Jun Tong Qu
Keyword(s):  
Shear Behavior ◽  
Masonry Wall ◽  
Fiber Reinforced Polymer ◽  
Masonry Walls ◽  
Lateral Shear ◽  
Maximum Displacement ◽  
Plane Shear ◽  
Damage Level ◽  
Reinforced Polymer ◽  
Shear Performance

To overcome the shortcoming of unreinforced masonry (URM) structure, structural columns are added in its construction to avoid the sudden collapse. This kind of structures still suffers different degrees of damage in the earthquake. This paper assesses the in-plane shear behavior of masonry walls with structural columns retrofitted with FRP (fiber reinforced polymer). The tests of two half-scaled masonry walls under cyclic loading have been carried out. One wall was served as reference specimen without any retrofitting scheme. Another specimen was tested to the pre-defined damage level and then strengthened with FRP sheets in mixed retrofitted configuration. The shear behavior of retrofitted specimen was discussed and compared with the reference in the aspect of lateral shear strength, maximum displacement and energy dissipation.

scholarly journals EXPERIMENTAL STUDY ON IN-PLANE SHEAR BEHAVIOR OF AAC BLOCK MASONRY WALLS WITHOUT OPENINGS

2018 ◽  
Vol 83 (749) ◽  
pp. 1075-1085
Author(s):  
Kenji TAKASHIMA ◽  
Ryota NAKAMURA ◽  
Shinji NAKATA ◽  
Tsutomu HANAI ◽  
Kuniyoshi SUGIMOTO ◽  
...  
Keyword(s):  
Experimental Study ◽  
Shear Behavior ◽  
Masonry Walls ◽  
Plane Shear

Characterization and analysis of in-plane shear behavior for glass warp knitted non-crimp fabrics based on bias extension experiment

2019 ◽  
Vol 111 (3) ◽  
pp. 394-404
Author(s):  
Ali Habboush ◽  
Huiqi Shao ◽  
Jinhua Jiang ◽  
Nanliang Chen
Keyword(s):  
Shear Behavior ◽  
Plane Shear ◽  
Bias Extension

A novel approach for precise determination of in-plane shear behavior of woven fabrics

2016 ◽  
Vol 87 (11) ◽  
pp. 1335-1348 ◽  
Author(s):  
Nazli Uren ◽  
Eren Oner ◽  
Ayse Okur
Keyword(s):  
Mechanical Properties ◽  
Correlation Coefficients ◽  
Shear Behavior ◽  
Precise Determination ◽  
Woven Fabrics ◽  
Raw Material ◽  
Bending Rigidity ◽  
Plane Shear ◽  
Novel Approach ◽  
Shear Frame

The ability of a textile product to change shape under motion-based diagonal forces defines the shear behavior of a fabric and its suitability for a wearable garment design. The principal aim of this study is to introduce a new shear frame and investigate the effects of raw material and setting on in-plane shear behavior of woven fabrics. For this purpose, the mechanical properties of systematic and commercially available non-systematic fabrics were measured. A novel approach to determine the in-plane shear behavior of woven fabrics via two complementary shear frame measurements was presented. The results were also compared with a conventional method known as the bias extension method. It was established that the proposed method provides more accurate and precise results. In order to investigate the correlation between in-plane shear behavior and other mechanical properties, bending rigidity and extension ability of fabrics were measured as well. The analyses regarding the relations between selected fabric parameters showed that there are considerably high correlation coefficients. The effect of raw material and setting was likewise found out to be statistically significant.

Study of the cohesion of carbon fiber yarns: in-plane shear behavior

2016 ◽  
Vol 10 (5) ◽  
pp. 671-683
Author(s):  
A. Wendling-Hivet ◽  
M. Ramón Ferré ◽  
S. Allaoui ◽  
R. Nunez ◽  
S. Loison ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Shear Behavior ◽  
Plane Shear
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