618 3D morphology of crack propagation path for time dependent fracture

Abstract REFERENCE: R. R. M. Ozelo, P. Sollero, and A. L. A. Costa, “An Alternative Technique to Evaluate Crack Propagation Path in Hyperelastic Materials,” Tire Science and Technology, TSTCA, Vol. 40, No. 1, January–March 2012, pp. 42–58. ABSTRACT: The analysis of crack propagation in tires aims to provide safety and reliable life prediction. Tire materials are usually nonlinear and present a hyperelastic behavior. Therefore, the use of nonlinear fracture mechanics theory and a hyperelastic material constitutive model are necessary. The material constitutive model used in this work is the Mooney–Rivlin. There are many techniques available to evaluate the crack propagation path in linear elastic materials and estimate the growth direction. However, most of these techniques are not applicable to hyperelastic materials. This paper presents an alternative technique for modeling crack propagation in hyperelastic materials, based in the J-Integral, to evaluate the crack path. The J-Integral is an energy-based parameter and is applicable to nonlinear materials. The technique was applied using abaqus software and compared to experimental tests.

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Direct determination of atomic crack propagation path in a dopant-segregated grain boundary using TEM nanoindentation techniques

10.22443/rms.emc2020.853 ◽

2021 ◽

Author(s):

Shun Kondo ◽

Keyword(s):

Grain Boundary ◽

Crack Propagation ◽

Direct Determination ◽

Propagation Path ◽

Crack Propagation Path

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Prediction Method of Three‐Dimensional Crack Propagation Path Based on Deep Learning Application

Advanced Engineering Materials ◽

10.1002/adem.202001043 ◽

2020 ◽

pp. 2001043

Author(s):

Junxia Wang ◽

Yuanjie Zheng ◽

Rong Luo ◽

Jun Ma ◽

Yingjie Peng ◽

...

Keyword(s):

Deep Learning ◽

Crack Propagation ◽

Three Dimensional ◽

Prediction Method ◽

Propagation Path ◽

Crack Propagation Path

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Predictions of Fatigue Crack Propagation Path and Life of High-Tension Steel in Residual Stress Fields.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A ◽

10.1299/kikaia.59.1429 ◽

1993 ◽

Vol 59 (562) ◽

pp. 1429-1436 ◽

Cited By ~ 10

Author(s):

Kiyotsugu Ohji ◽

Masahiro Tsuji ◽

Shiro Kubo ◽

Yoshio Ono ◽

Atsushi Yahata ◽

...

Keyword(s):

Residual Stress ◽

Fatigue Crack ◽

Crack Propagation ◽

Fatigue Crack Propagation ◽

Stress Fields ◽

Propagation Path ◽

Crack Propagation Path ◽

High Tension

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Controlling the Crack Propagation Path of the Veil Interleaved Composite by Fusion-Bonded Dots

Polymers ◽

10.3390/polym11081260 ◽

2019 ◽

Vol 11 (8) ◽

pp. 1260 ◽

Cited By ~ 3

Author(s):

Guangchang Chen ◽

Jindong Zhang ◽

Gang Liu ◽

Puhui Chen ◽

Miaocai Guo

Keyword(s):

Crack Propagation ◽

Propagation Path ◽

Mode I ◽

Fiber Breakage ◽

Fracture Path ◽

Interlaminar Fracture ◽

Crack Propagation Path ◽

Pull Out ◽

Continuous Carbon Fiber ◽

The Veil

This study investigated the effect of the fusion-bonded dots of veil interleaves on the crack propagation path of the interlaminar fracture of continuous carbon fiber reinforced epoxy resin. Two thin fiber layers (i.e., nylon veil (NV) with fusion-bonded dots and Kevlar veil (KV) physically stacked by fibers) were used to toughen composites as interleaves. Result shows that the existence of fusion-bonded dots strongly influenced the crack propagation and changed the interlaminar fracture mechanism. The Mode I fracture path of the nylon veil interleaved composite (NVIC) could propagate in the plane where the dots were located, whereas the path of the Kevlar veil interleaved composite (KVIC) randomly deflected inside the interlayer without the pre-cracking of the dots. The improvement of Mode I toughness was mainly based on fiber bridging and the resulting fiber breakage and pull-out. Fiber breakage was often observed for NVIC, whereas fiber pull-out was the main mechanism for KVIC. For the Mode II fracture path, the fusion-bonded NV dots guided the fracture path largely deflected inside the interlayer, causing the breakage of tough nylon fibers. The fracture path of the physically stacked KVIC occurred at one carbon ply/interlayer interface and only slightly deflected at fiber overlapped regions. Moreover, the fiber pull-out was often observed.

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