Dynamic modelling of elastic-plastic beams under impact

Shi, Shiyun; Zhu, Ling; Yu, Tao

doi:10.1016/j.ijimpeng.2018.11.017

Cited by 18 publications

(2 citation statements)

References 22 publications

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“…ey observed the pseudo-shakedown phenomenon during the tests, which was confirmed by Wei [4] and Huang et al [6]. Shi [10,11] proposed an ideal elastic-plastic analytical method for predicting the deformation and the structural stiffness of rectangular plates and beams made of metal material under repeatedly uniform pressure loadings. Duan [12] and Zeng [13] investigated the mechanical behavior of aluminum alloy plates and mild steel plates with precast cracks under repeated drop weight impacts.…”

Section: Introductionmentioning

confidence: 65%

Experimental Research on the Repeated Impacts Behavior of Aluminum Corrugated-Core Sandwich Structures

Zeng

Liu

Zhao

2022

Shock and Vibration

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Engineering structures in aviation and marine experience complex loads and are often affected by repeated impact loads. The damage accumulated from deflection in the process of repeated impact will often seriously affect the safety of the structure. In this research, the low-velocity repeated impacts behavior of corrugated core structures was investigated through experimental methods. A series of low-velocity repeated impact tests were carried out to study impact resistance, taking into account the effects of varied impact sites and impact energy levels and the effects of different impact locations and different levels of impact energy. It is also observed from the test that the upper panel played a crucial role and experienced the coupling mode of the local indentations and global bending deformations during the repeated impacts tests. Three different failure modes were observed when changing the impact energies and impact locations. Moreover, the “pseudo-shakedown” phenomenon was also found when the energy of the impacts is 10 J on the short span. The present surveys provide a reliable method and insight into the dynamic response of the aluminum corrugated core structures when subjected to low-velocity repeated impacts, which could be a significant guideline for the investigation and lightweight design of shipping and aviation.

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Section: Introductionmentioning

confidence: 65%

Experimental Research on the Repeated Impacts Behavior of Aluminum Corrugated-Core Sandwich Structures

Zeng

Liu

Zhao

2022

Shock and Vibration

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“…Investigations carried out by Shi et al [52] were aimed at studying the dynamic response of a restrained beam to shock loads from a rigid mass. Analytical formulas were derived for predicting the quasi-static force and deformation relationships of an elastoplastic beam during loading and unloading.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of physically nonlinear 3D beams and plates made of multimodulus materials

et al. 2021

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In this work, mathematical models of physically nonlinear plates and beams made from multimodulus materials are constructed. Our considerations are based on the 3D deformation theory of plasticity, the von Mises plasticity criterion and the method of variable parameters of the theory of elasticity developed by Birger. The proposed theory and computational algorithm enable for solving problems of three types of boundary conditions, edge conditions and arbitrary lateral load distribution. The problem is solved by the finite element method (FEM), and its convergence and the reliability of the results are investigated. Based on numerical experiments, the influence of multimodulus characteristics of the material of the beam and the plate on their stress–strain states under the action of transverse loads is illustrated and discussed.

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Analytical and numerical modelling of repeated impacts on elastic-strain hardening beams

Shi

Zhu

2022

Int J Mech Mater Des

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Dynamic modelling of elastic-plastic beams under impact

Cited by 18 publications

References 22 publications

Experimental Research on the Repeated Impacts Behavior of Aluminum Corrugated-Core Sandwich Structures

Experimental Research on the Repeated Impacts Behavior of Aluminum Corrugated-Core Sandwich Structures

Mathematical modeling of physically nonlinear 3D beams and plates made of multimodulus materials

Analytical and numerical modelling of repeated impacts on elastic-strain hardening beams

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