Study on the Failure and Energy Absorption Mechanism of Multilayer Explosively Welded Plates Impacted by Spherical Fragments

Zhou, Nan; Wang, J. X.; Tang, Song; Tao, Q. C.; Wang, M. X.

doi:10.1007/s11029-018-9706-z

Cited by 6 publications

(1 citation statement)

References 26 publications

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“…These types of structures can dissipate large amounts of energy through various damage mechanisms such as fibre breakage, fibre buckling, matrix cracking, matrix crushing, fibre-matrix debonding, and delamination, etc. 8–12 Therefore, the ability to predict the damage initiation of each composite damage (CODAM) mechanism is of vitally important for the whole damage process. However, it has a difficulty or a challenge in accurately predicting all damage initiations, either combined or individually, of composite under axial crushing loading owing to the complexity of damage mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Evaluations of failure initiation criteria for predicting damages of composite structures under crushing loading

Jiang

Liu

Zhang

et al. 2018

Journal of Reinforced Plastics and Composites

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The crushing behaviors of thin-walled composite structures subjected to quasi-static axial loading are comparatively evaluated using four different failure initiation criteria. Both available crushing tests of composite corrugated plate and square tube are used to validate the stiffness degradation-based damage model with the Maximum-stress criterion. Comparatively, Hashin, Maximum-stress, Stress-based Linde, and Modified criteria are respectively implemented in the damage model to predict crush behaviors of corrugated plate and square tube. To develop failure criteria, effects of shear coefficients and exponents in the Modified and Maximum-stress criteria on damage mechanisms of corrugated plate are discussed. Results show that numerical predictions successfully capture both of experimental failure modes and load–displacement responses. The Modified criterion and particularly Maximum-stress criterion are found to be more appropriate for present crush models of corrugated plate and square tube. When increasing the failure index, the crushing load is decreased, which also causes premature material failure. The shear coefficient and exponents have dramatic influence on the crushing load. Overall, an insight into the quantitative relation of failure initiation is obtained.

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Section: Introductionmentioning

confidence: 99%