Results 71 to 80 of about 1,698,358 (207)

MODELLING AND OPTIMIZATION OF PORTABLE SUPERVISION THE DEVICE OF BY MEANS OF ANALYSIS OF RIGIDITY OF ITS DESIGN IN THE ENVIRONMENT OF Pro/ENGINEER SAPR

open access: yesПриборы и методы измерений, 2015
The 3D model of the portable device of supervision using SAPR Pro/ENGINEER is constructed. By means of the module of the engineering analysis built in this package the mechanical analysis of rigidity of a product design is carried out.
R. V. Feodortsau   +2 more
doaj  

Model-Based Fatigue Life Prediction of Hydraulic Shock Absorbers Equipped with Clamped Shim Stack Valves

open access: yesApplied Sciences
In modern shock absorber development, the fatigue durability of shim-based clamped valve systems remains a critical factor influencing both performance and operational safety.
Piotr Czop, Grzegorz Wszołek
doaj   +1 more source

Micro-mechanical analysis of damage growth and fracture in discontinuous fiber reinforced metal matrix composites [PDF]

open access: yes
The near-crack-tip stresses in any planar coupon of arbitrary geometry subjected to mode 1 loading may be equated to those in an infinite center-cracked panel subjected to the appropriate equivalent remote biaxial stresses (ERBS).
Goree, James G., Richardson, David E.
core   +1 more source

Convertibility of Stress Equivalence Steps for Finite Element Calculations of Arch Dam

open access: yesRenmin Zhujiang
The principal stress of an arch dam after the equivalent treatment is an important control index of arch dam stress. To explore whether the principal stress calculated by the common finite element equivalent stress method is consistent with the principal
FU Yuchen, WANG Yajun, YU Jin
doaj   +2 more sources

Research on the Application of Equivalent Stress Analysis Across the Entire Dam Surface of Arch Dams Under Seismic Action

open access: yesApplied Sciences
For arch dam seismic safety evaluation, the finite element equivalent stress method has been widely used, and existing studies have realized mature equivalent stress calculation along the foundation surface path.
Hui Peng   +3 more
doaj   +1 more source

Nonlinear pre-stress for cloaking from antiplane elastic waves

open access: yes, 2011
A theory is presented showing that cloaking of objects from antiplane elastic waves can be achieved by elastic pre-stress of a neo-Hookean nonlinear elastic material.
Parnell, William J.
core   +1 more source

Optimization of Roll Configuration and Investigation of Forming Process in Three-Roll Planetary Rolling of Stainless Steel Seamless Tubes

open access: yesMetals
Three-roll planetary rolling technology has emerged as a primary method for manufacturing seamless tubes due to its advantages, including significant single-pass deformation, low energy consumption, and the ability to continuously roll long workpieces ...
Chuanchuan Ma   +6 more
doaj   +1 more source

Mechanical Performance Analysis of Four-Ram BOP Suspension Ram Slip Insert

open access: yesShiyou jixie, 2022
In the process of ram suspension of four-ram BOP,a great stress concentration occurs,resulting in the problems of slip insert wearing or chipping.On the basis of meeting the required working performance of the suspension ram,the slip insert opening ...
Pan Deng   +4 more
doaj  

Review of vibration fatigue life analysis methods with mean stress

open access: yesHangkong gongcheng jinzhan
Vibration fatigue with mean stress widely exists in various engineering structures, while researchers have different solving methods. In order to compare and discuss the applicability of these methods, literature on fatigue life evaluation with mean ...
LI Mengnan, YAO Weixing
doaj   +1 more source

Safety Analysis of Thread Connection of Mono-Diameter Expandable Casing

open access: yesShiyou jixie, 2023
At present,the research on the performance of threaded joints mainly focuses on the analysis of the mechanical properties of the special threaded joints of conventional oil casing,and the analysis of the mechanical properties of the threaded joints of ...
Feng Ding   +4 more
doaj  

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