Results 31 to 40 of about 66,920 (303)
Frontiers in Materials, 2022 The three-dimensional ground-penetrating radar system is an effective method to detect road void disease. Ground penetrating radar image interpretation has the characteristics of multi-solution, long interpretation period, and high professional ...
Zhiyong Huang +4 more
doaj +1 more source
Acoustic vibration test detects intermittent electrical discontinuities [PDF]
, 1970 Nondestructive test method detects faulty electrical connections in inaccessible or hidden portions of electronic harness assemblies and connectors.
Grieve, S. M., Roberts, D. E.
core +1 more source
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Instruction manuals for liquid penetrant nondestructive testing [PDF]
, 1969 Manuals provide quality control and test personnel with basic information on liquid penetrant testing. Topics covered include scope of application, equipment and materials used, test procedures, safety precautions, quality control, and comparison of ...
core +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
Cailiao gongchengTo characterize the grain morphology from multiple apsects such as size， shape and distribution， and then realize the quantitative ultrasonic evaluation of the uniformity of grain morphology， an ultrasonic multi-parameter evaluation method for grain ...
GONG Xin, CHEN Jie, CHEN Xi, WU Guanhua
doaj +1 more source
Investigating the use of terahertz pulsed time domain reflection imaging for the study of fabric layers of an Egyptian mummy [PDF]
Journal of the European Optical Society-Rapid Publications, 2011 This paper reports the first use of terahertz time domain reflection imaging involving textiles on part of a complete human mummy, still in original wrapping.
Fukunaga Kaori +6 more
doaj +1 more source
A Reconstruction Procedure for Microwave Nondestructive Evaluation based on a Numerically Computed Green's Function [PDF]
, 2003 This paper describes a new microwave diagnostic tool for nondestructive evaluation. The approach, developed in the spatial domain, is based on the numerical computation of the inhomogeneous Green’s function in order to fully exploit all the available a ...
Caorsi, Salvatore +4 more
core +4 more sources
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source