Nonlinear Mechanical Response and Residual Tearing Strength of Flexible Composite Sheet with Single Edge-crack under Uniaxial Tension

2021 ◽  
pp. 108056
Author(s):  
Di Chen ◽  
Jun-Jiang Xiong
Keyword(s):  
Uniaxial Tension ◽  
Edge Crack ◽  
Mechanical Response ◽  
Composite Sheet ◽  
Single Edge ◽  
Nonlinear Mechanical ◽  
Tearing Strength

Comparison of Strip Yield and Net Section Plasticity Models for a Bar in Bending With a Single Edge Crack

2017 ◽  
Author(s):  
Wolf Reinhardt ◽  
Don Metzger
Keyword(s):  
Edge Crack ◽  
Large Scale ◽  
Stress Singularity ◽  
Crack Tip ◽  
Small Scale ◽  
Single Edge ◽  
Yield Model ◽  
Strip Yield Model ◽  
Crack Tip Plasticity ◽  
Stress And Deformation

The strip yield model is widely used to describe crack tip plasticity in front of a crack. In the strip yield model the stress in the plastic zone is considered as known, and stress and deformation fields can be obtained from elastic solutions using the condition that the crack tip stress singularity vanishes. The strip yield model is generally regarded to be valid to describe small scale plasticity at a crack tip. The present paper examines the behavior of the strip yield model at the transition to large-scale plasticity and its relationship to net section plasticity descriptions. A bar in bending with a single edge crack is used as an illustrative example to derive solutions and compare with one-sided and two-sided plasticity solutions.

Lateral Vibration of a Consistent Continuous Beam With a Crack

1997 ◽  
Author(s):  
Thomas G. Chondros ◽  
Andrew D. Dimarogonas ◽  
Jonathan Yao
Keyword(s):  
Displacement Field ◽  
Edge Crack ◽  
Fatigue Cracks ◽  
Lateral Vibration ◽  
Single Edge ◽  
Cracked Beam ◽  
Beam Vibration ◽  
Vibration Theory ◽  
Lateral Vibrations ◽  
Double Edge

Abstract A continuous cracked beam vibration theory is developed for the lateral vibration of cracked Euler-Bernoulli beams with single-edge or double-edge cracks. The Hu-Washizu-Barr variational formulation was used to develop the differential equation and the boundary conditions of the cracked beam as an one-dimensional continuum. The displacement field about the crack was used to modify the stress and displacement field throughout the bar. The crack was modelled as a continuous flexibility using the displacement field in the vicinity of the crack, found with fracture mechanics methods. The results of three independent evaluations of the lowest natural frequency of lateral vibrations for beams with a single-edge crack are presented: the continuous cracked beam vibration theory developed here, the lumped crack beam vibration analysis, and an asymptotic solution. Experimental results from aluminum beams with fatigue cracks are very close to the values predicted. A steel beam with a double-edge crack was also investigated with the above mentioned methods, and results compared well with experimental data.

Novel Soft Materials with Nonlinear Mechanical Response

2021 ◽  
Vol MA2021-02 (55) ◽  
pp. 1591-1591
Author(s):  
Takanori Sato ◽  
Yosuke Watanabe ◽  
Nahin Islam Shiblee ◽  
Ajit Khosla ◽  
Jun Ogawa ◽  
...  
Keyword(s):  
Mechanical Response ◽  
Soft Materials ◽  
Nonlinear Mechanical

scholarly journals Mechanical response of bilayer silicene nanoribbons under uniaxial tension

RSC Advances ◽  
2018 ◽  
Vol 8 (20) ◽  
pp. 10785-10793 ◽  
Author(s):  
M. R. Chávez-Castillo ◽  
M. A. Rodríguez-Meza ◽  
L. Meza-Montes
Keyword(s):  
Stress Distribution ◽  
Uniaxial Tension ◽  
Mechanical Response ◽  
Silicene Nanoribbons

Ghost vacancy effect on the stress distribution of bilayer silicene nanoribbons.

Hierarchical Structure and Properties of Graphene Oxide Papers

2013 ◽  
Vol 80 (4) ◽  
Author(s):  
Charles D. Wood ◽  
Marc J. Palmeri ◽  
Karl W. Putz ◽  
Zhi An ◽  
SonBinh T. Nguyen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Structural Feature ◽  
Uniaxial Tension ◽  
Hierarchical Structure ◽  
Mechanical Response ◽  
Structure And Properties ◽  
Fracture Surfaces ◽  
High Stiffness ◽  
Significant Attention

The mechanical properties of graphene oxide papers have attracted significant attention in recent years due to their high stiffness and tough behavior. While the structural feature most commonly characterized is the nanosheet spacing, there is a hierarchical structure, which is likely responsible for the impressive mechanical properties. In this paper, we examine the structure of graphene oxide papers on several length scales using novel techniques to distinguish between lamellae and a newly defined feature, termed “super-lamellae.” The differentiation between these intermediate features provides context to the previously observed mechanical response and fracture surfaces of graphene oxide papers, particularly under uniaxial tension.

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