Results 21 to 30 of about 268,710 (264)

Optimization of laminates subjected to failure criterion [PDF]

open access: yesMetalurgija, 2011
The paper is aimed on laminate optimization subjected to maximum strain criterion. The optimization problem is based on the use of continuous design variables. The thicknesses of layers with the known orientation are used as design variables.
E. Kormaníková, Ilija Mamuzić
doaj  

Finite Element Simulation of Multi-Scale Bedding Fractures in Tight Sandstone Oil Reservoir

open access: yesEnergies, 2019
Multi-scale bedding fractures, i.e., km-scale regional bedding fractures and cm-scale lamina-induced fractures, have been the focus of unconventional oil and gas exploration and play an important role in resource exploration and drilling practice for ...
Qianyou Wang   +7 more
doaj   +1 more source

Thermal coupling analysis of lightning strike laminates

open access: yesJournal of Aeronautical Materials, 2020
In order to study the ablation damage mechanical properties of composite laminated plate under the action of lightning current, a thermal-mechanical coupling finite element analysis model of composite lightning strike was established. The validity of the
LU Xiang   +3 more
doaj   +1 more source

Mechanical behavior of unidirectional composites according different failure criteria

open access: yesFracture and Structural Integrity, 2022
This work is about study of the mechanical behaviour of unidirectional Kevlar / Epoxy composite laminates according to different failure criteria. Varying strength parameters values, makes it possible to compare the ultimate mechanical characteristics ...
Adel Deliou�, Benattou Bouchouicha
doaj   +1 more source

Calibration of the Ductile Failure Criterion for Nickel-Based Superalloys taking into Account the Localization of the Strain

open access: yesFatigue of Aircraft Structures, 2017
Static tension test allows characterization of material strength properties. This simple test provides input data for numerical calculation of structural components made of the tested alloy.
Madejski Bartosz, Socha Grzegorz
doaj   +1 more source

Numerical Analysis of Thermal Shock Cracking Behaviors of Ceramics Based on the Force-Heat Equivalence Energy Density Principle

open access: yesFrontiers in Materials, 2022
Thermal shock is one of the main causes for the fracture of ceramic materials due to their inherent brittleness. Aiming to explore the mechanism of thermal shock cracking behavior of ceramics under different thermal shock conditions, a novel temperature ...
Dingyu Li   +4 more
doaj   +1 more source

Numerical Analysis of Restrained Continuous Steel Columns under Standard Fire

open access: yesFire, 2023
The steel column performance in realistic structures during a fire has yet to be fully understood because existing research emphasizes single-story performance, thereby disregarding the influence of continuous steel columns in multi-story configurations ...
Jinhua Sun   +3 more
doaj   +1 more source

The Failure Analysis of Composite Bolted Joint Structure Based on a Nonlinear Model

open access: yesHangkong gongcheng jinzhan, 2019
Composite bolted joints have been widely used in aircraft structures. It is important to study their tensile failure. A three dimensional nonlinear model is established by combining the Hashin’s criterion, energy dissipation rate method, Puck’s criterion
Li Peicheng   +3 more
doaj   +1 more source

Evaluation Method of Production Pressure Differential in Deep Carbonate Reservoirs: A Case Study in Tarim Basin, Northwest China

open access: yesEnergies, 2021
Deep and even ultra-deep petroleum resources play a gradually increasing and important role with the worldwide continuous advancement of oil and gas exploration and development.
Haoyang Weng   +5 more
doaj   +1 more source

A PROGRESSIVE QUADRATIC FAILURE CRITERION FOR A LAMINATE

open access: yesComposites Science and Technology, 1998
The application of failure criteria to laminated composites is a critical step in the determination of the strength and safety of a point in a structure under combined loading conditions. Non-homogeneous stresses within a structure may induce a complicated failure scenario whereby one ply at a point can initiate failure and affect other plies at the ...
Kuo-Shih Liu, Stephen W. Tsai
openaire   +1 more source

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