European Journal of Mechanics A-solids
Papers 2903
1 page of 291 pages (2,903 results)
Abstract null null The paper is focused on the stability computation of a rotating system affected by parametric excitation, by using a frequency based computational method. The test case is a Jeffcott rotor excited by the unbalance of the disk and by the parametric excitation due to varying compliance of the rolling bearing elements of the supports. The stability of a system is typically studied using Floquet's theory based on direct time integration, or less often using Harmonic Balance Method...
#1Ehsan Ahmadi (IAU: Islamic Azad University)
#2Amir Atrian (IAU: Islamic Azad University)H-Index: 13
Last. Saeid Saberi (IAU: Islamic Azad University)
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Abstract null null In this study, the high-velocity null impact behavior null null null null of new designed sandwich structures with syntactic null foam core null null and null FML null skins is investigated by experimental and numerical approaches. An appropriate numerical model is developed in order to modelling of the impact behavior of sandwich structures using the finite element software ABAQUS/Explicit. In this model, two VUMAT subroutine are presented to simulate the constitutive models ...
#1Jing Li (Xidian University)
#2Xin Wang (Xidian University)
Last. Yuan-ying Qiu (Xidian University)
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Abstract null null null In the present paper, a new generalized strain energy density-based null life prediction model null null was proposed by analyzing the drawbacks of the commonly-used null fatigue life prediction null criteria. In the proposed model, the critical plane was defined as the maximum shear null null null strain energy density null null plane with the larger normal strain energy density. A weight index was introduced in this model to take into account the different influences of...
#1Guang ZhuH-Index: 1
#1Guang Zhu (ECL: École centrale de Lyon)H-Index: 28
Last. Mohamed IchchouH-Index: 30
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Abstract null null The scattering of guided waves through a complex structure is of great importance in predicting vibration energy transmission and reflection across structures. Multi-scale models based on generalized continuum theory have been developed recently to investigate the vibration behavior of complex media in the frame of continuum mechanics. In this study, models based on the second strain gradient theory are employed together with a scattering matrix method to study the wave transm...
Abstract null null null Void interaction, leading to null coalescence null null , is the mechanism leading to null ductile failure null under intense shearing. Published unit cell model studies have demonstrated that micron-size voids collapse to form micro-cracks while continuous elongation and rotation of the voids thin the intervoid ligaments. At a final stage, the deformation leads to plastic flow null null localization null in the ligament, and the material loses the load-carrying capacity....
#1Eric Feulvarch (Ecole nationale d'ingénieurs de Saint-Etienne)H-Index: 17
#2François Josse (Ecole nationale d'ingénieurs de Saint-Etienne)
Last. Alexey Sova (Ecole nationale d'ingénieurs de Saint-Etienne)H-Index: 1
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Abstract An original formulation is proposed in order to simulate molten metal deposition geometry with a very low CPU time. This new approach is based on the original technique proposed by Leblond et al. [C. R. Mecanique 341 (2013) 770–775] for the incorporation of surface tension in finite element calculations. The FEM simulation strategy is composed of a 2-step resolution algorithm at each time step of the deposition process. At first, the 2D mesh of the surface inflates according to the volu...
#1Minh-Chien Trinh (CBNU: Chonbuk National University)H-Index: 5
Last. Hyungmin JunH-Index: 6
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Abstract In this paper, we present a geometrically nonlinear formulation for a nine-node shell finite element and demonstrate its performance. The total Lagrangian formulation is utilized to allow for large displacements and large rotations. The mixed interpolation of tensorial components (MITC) technique is applied to effectively reduce the membrane and shear locking phenomena without refining mesh, introducing additional nodes, and using reduced integrations. Many-core accelerators with GPU-co...
#1Riku Neuvonen (Lappeenranta University of Technology)H-Index: 1
#2Tuomas Skriko (Lappeenranta University of Technology)H-Index: 5
Last. Timo Björk (Lappeenranta University of Technology)H-Index: 13
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Abstract Studies conducted in recent years have shown that the ultimate load-bearing and deformation capacity of weldments manufactured from ultra-high-strength steel is often impacted by the heat-affected zone. Thus, to assess the strength properties of these welds, in addition to the base material properties and weld metal, the heat-affected zone's mechanical properties must be analyzed. In this study, a discretization and material parameter characterization are conducted for friction-welded j...
#1Sandeep Singh (D.A.V. College, Koraput)
#2Kuldeep SharmaH-Index: 25
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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Abstract In this paper, we present polynomial varying modified polarization saturation models for semipermeable two unequal collinear cracks with coalesced interior zones in piezoelectric media. Under the influence of far-field electromechanical loadings, the cracks situated in an infinite arbitrary polarized piezoelectric media are opened in self-similar manner, forming a strip saturated zone in front of the cracks-tips. Here, we modify the polarization saturation (PS) model in a way by arresti...
Top fields of study
Mathematical analysis
Finite element method
Composite material
Materials science
Classical mechanics