In-plane shear nonlinearity in failure behavior of angle-ply laminated shells

2019 ◽  
Vol 225 ◽  
pp. 111164 ◽  
Author(s):  
A. Sabik
Keyword(s):  
Failure Behavior ◽  
Plane Shear ◽  
Laminated Shells

Wrinkling and failure behavior of single-layer MoS2 sheets under in-plane shear

2019 ◽  
Vol 21 (35) ◽  
pp. 19115-19125 ◽  
Author(s):  
Yao Li ◽  
Peijian Chen ◽  
Hao Liu ◽  
Juan Peng ◽  
Feng Gao ◽  
...  
Keyword(s):  
Molecular Simulations ◽  
Single Layer ◽  
Failure Behavior ◽  
Nonlocal Model ◽  
Plane Shear

In this paper, the wrinkling and failure behavior of single layer MoS2 (SLMoS2) sheets under in-plane shear is investigated using molecular simulations and the nonlocal model.

Failure Behavior of Plain Weave Fabric Laminates Under In-Plane Shear Loading

1994 ◽  
Vol 16 (1) ◽  
pp. 3 ◽  
Author(s):  
WS Johnson ◽  
JE Masters ◽  
TK O'Brien ◽  
NK Naik ◽  
VK Ganesh
Keyword(s):  
Shear Loading ◽  
Failure Behavior ◽  
Plane Shear ◽  
Plain Weave ◽  
Weave Fabric

A numerical and experimental investigation on quasi-static punch shear test behavior of aramid/epoxy composites

2019 ◽  
Vol 28 (6) ◽  
pp. 398-409
Author(s):  
Ali İmran Ayten ◽  
Bülent Ekici ◽  
Mehmet Atilla Taşdelen
Keyword(s):  
Numerical Simulations ◽  
Shear Test ◽  
Material Model ◽  
Mechanical Tests ◽  
Epoxy Composites ◽  
Failure Behavior ◽  
Model Parameters ◽  
Plane Shear ◽  
Test Behavior ◽  
Composite Samples

In this study, quasi-static punch shear behavior of aramid epoxy composites was investigated both numerically and experimentally. Firstly, material model parameters used in numerical simulations were obtained by various mechanical tests such as tensile, compression, and in-plane shear tests. Different damage mechanisms that were observed during each test were the focus of interest. Then quasi-static punch shear test was performed and verified with numerical simulations. After the verification of material model, punch tests, which have different boundary conditions, were run numerically, and the effect of thickness and span-to-punch ratio (SPR) were determined for aramid/epoxy composites. It is concluded that failure mechanisms of composite samples were related to SPR. When SPR increases, the failure mode was shifted from shear-dominated failure to bending-dominated failure behavior. Additionally, punch shear strength value at minimum SPR (1.1) was eight times bigger than the value at maximum one (8).

Particle-Based Modelling of In-Plane Shear in Textiles

2018 ◽  
Vol 12 (2) ◽  
pp. 142
Author(s):  
Reza Samadi ◽  
Francois Robitaille
Keyword(s):  
Plane Shear

Finite Element Analysis of Tire/Rim Interface Forces Under Braking and Cornering Loads

1992 ◽  
Vol 20 (2) ◽  
pp. 83-105 ◽  
Author(s):  
J. P. Jeusette ◽  
M. Theves
Keyword(s):  
Finite Element ◽  
Shear Stress ◽  
Contact Pressure ◽  
Element Model ◽  
Shear Stresses ◽  
Detailed Knowledge ◽  
Stress Distributions ◽  
Element Analysis ◽  
Plane Shear ◽  
Normal Contact

Abstract During vehicle braking and cornering, the tire's footprint region may see high normal contact pressures and in-plane shear stresses. The corresponding resultant forces and moments are transferred to the wheel. The optimal design of the tire bead area and the wheel requires a detailed knowledge of the contact pressure and shear stress distributions at the tire/rim interface. In this study, the forces and moments obtained from the simulation of a vehicle in stationary braking/cornering conditions are applied to a quasi-static braking/cornering tire finite element model. Detailed contact pressure and shear stress distributions at the tire/rim interface are computed for heavy braking and cornering maneuvers.

Interpreting Laser-Based Fault Localization Results: Case Studies

2019 ◽  
Author(s):  
Sukho Lee ◽  
John van den Biggelaar ◽  
Marc van Veenhuizen
Keyword(s):  
Case Studies ◽  
Circuit Design ◽  
High Sensitivity ◽  
Failure Behavior ◽  
Process Technology ◽  
Resistance Change ◽  
Voltage Imaging ◽  
Root Cause ◽  
First Case ◽  
Proper Interpretation

Abstract Laser-based dynamic analysis has become a very important tool for analyzing advanced process technology and complex circuit design. Thus, many good reference papers discuss high resolution, high sensitivity, and useful applications. However, proper interpretation of the measurement is important as well to understand the failure behavior and find the root cause. This paper demonstrates this importance by describing two insightful case studies with unique observations from laser voltage imaging/laser voltage probing (LVP), optical beam induced resistance change, and soft defect localization (SDL) analysis, which required an in-depth interpretation of the failure analysis (FA) results. The first case is a sawtooth LVP signal induced by a metal short. The second case, a mismatched result between an LVP and SDL analysis, is a good case of unusual LVP data induced by a very sensitive response to laser light. The two cases provide a good reference on how to properly explain FA results.

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